Clinical Pharmacy and Pharmacoepidemiology (IPSUM)
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About us

The IPSUM (Identification and Prevention of Suboptimal Use of Medication) research group perform research within various facets of pharmacy practice, clinical pharmacy, and pharmacoepidemiology to identify suboptimal use of medications and related factors, and promote approprate medication use and management.

Our research projects range from pharmacoepidemiological investigations that utilize data from national registries to patient-centered studies aimed at identifying medication-related problems and devising solutions. Additionally, we conduct interdisciplinary intervention studies to determine the most effective ways for healthcare professionals to collaborate in the best interest of the patient, and we delve into health economics to establish models for cost savings in healthcare.

Our research methodology encompasses a blend of both quantitative and qualitative approaches, which we employ as necessary to explore our research inquiries.

Our research projects



Research group members


PhD Candidates


Graduated and affiliated PhD candidates

The following PhD students have performed their PhD work in the IPSUM research group

  • Kjerstin Havnes (dissertation in 2022)
  • Jeanette Schultz Johansen (dissertation in 2022)
  • Elisabeth Pedersen (dissertation in 2021)

The following PhD studens started their reaserch education in other research groups but had supervision from members of IPSUM

  • June Utnes Høgli (dissertation in 2015) (Main- and co-supervisor from IPSUM)
  • Pål Haugen (dissertation in 2015) (Co-supervisor from IPSUM)
  • Ilya Zykov (dissertation 2020) (Co-supervisor from IPSUM)
  • Dina Benedicte Stensen (dissertation 2022) (Co-supervisor from IPSUM)

The following PhD students have been or are affiliated with the IPSUM research group

  • Solveig Konst (University Hospital of North Norway) - planned dissertation in 2029 (co-supervisor from IPSUM)
  • Eirin Guldsten Robinson (UiO) - planned dissertation in May 2024 (co-supervisor from IPSUM)
  • Hilde Risvold - dissertation in 2023 (co-supervisors from IPSUM)

Master students

Current and former master students affiliated with the IPSUM research group

2023/2024

Abdul Maqueem
Anika J. Petri
Anne Beisbier
Danial Umer
Elizabeth E. Gashi
Jeroen M. v.Z. Haukaas
Jørgen Kvernstad
Magnus Eidesmo
Makele S. Kibrom
Nanna P. K. A. Okyere
Nilofar A. Mohammadi
Nina J. Alvsvåg
Oda M. A. Bøe
Tedros Tsegay
Tina J. Vollan

2022/2023

Abdullahi B. Omar
Yen-Ngoc Anna Le
Ingvild Stødle Klophus
Katharina Kaino Omma
Kristine Synnøve Ramstad
Kübra Bayram
Malin Kristine Standal
Sagial A. S. Abdi
Muhammad Tauseef ul Haq
Wiphawee Bunmeepom

2021/2022

Anngisha Arungumar
Annie Johanne Blomstereng Tangstad
Ashrak Majeed
Asia Jadgal
Elin Duyen Luong
Ellen Marie Knotten
Mari Høydal
Martin Arvin Aamodt
Nora Svarthoel Fjærvoll
Regine Lidtveit Fossum
Ruben Hogstad Hansen
Saleem Iqbal
Sania Rafiq
Sigrid Andersen
Siri Pham
Tript Kaur

2020/2021

Catherine Tam Uyen Vo
Cathrine Erlandsen
Halbin Koshar
Johan Mikkelborg Moss
Karen Øverbø Johannessen
Kenny Khang Tran
Lisa Rødsjø
Malene Krokmyrdal
Maren Eidsmo
Mari Walquist
Marie Eline Charlotte Valstad
Marie Fagerli
Truong An Le
Vilde Sandsdalen
Yvonne Pasing

2019/2020

Elaine Fjellstad
Hans Atle Laiti
Johanne Mikkelborg
Kieu Nhi Lise Truong
Marcy Chan
Mari Marlen Christensen
May Nha Tran Nguyen
Michelle Thao Nguyen
Sigrid Grøttebø Hellem
Stine Grong

2018/2019

Birgitte Gladsø Tøndel
Caroline Thy Nguyen
Elise Sørensen Ramstad
Ivan Chi Kei Cheang
Kine-Lise Fiskum Johansen
Linda 
Mohsen Askar
Ole Bratland
Sanna Andrea K. Beckstrøm
Tora Margrethe Kristiansen
Vera Stanescu Knutsen

2017/2018

Betty Hoang
Charlotte Røsnes
Elise Nakling
Henriette Eilertsen

2016/2017

Abdifatah Adan
Adelina Ademi
Ibrahim Muse
Kim Phung Kong
Mahmoud Fouad
Pia Simonsen
Torunn Stadeløkken

2015/2016

Celine Victoria Egeberg
Frank Kwame Ntiamoah
Kristian Sørensen
Line Anita Sandvik
Åshild Sigmundsen

2014/2015

Birgitte Zahl-Holmstad
Eirin Karlsen
Elisabeth Pedersen
Hamideh Movahedi
Kristine F. Brunvoll
Silje Brækkan Rønning

Publications

This provides a chronological overview of publications by the IPSUM research group. You can also access publications in the national database Christin by clicking on individual group members.

2024

Svendsen, K., Askar, M., Umer, D., & Halvorsen, K. H. (2024). Short-term learning effect of ChatGPT on pharmacy students’ learning. Exploratory Research in Clinical and Social Pharmacy, 15, 100478. https://doi.org/10.1016/j.rcsop.2024.100478

Askar, M., Småbrekke, L., Holsbø, E., Bongo, L. A., & Svendsen, K. (2024). Using network analysis modularity to group health code systems and decrease dimensionality in machine learning models. Exploratory Research in Clinical and Social Pharmacy, 14, 100463. https://doi.org/10.1016/j.rcsop.2024.100463

Holis, R. V., Elenjord, R., Lehnbom, E. C., Andersen, S., Fagerli, M., Johnsgård, T., Zahl-Holmstad, B., Svendsen, K., Waaseth, M., Skjold, F., & Garcia, B. H. (2024). How Do Pharmacists Distribute Their Work Time during a Clinical Intervention Trial?—A Time and Motion Study. Pharmacy, 12(4), 106. https://doi.org/10.3390/pharmacy12040106

 Johnsgård, T., Elenjord, R., Holis, R. V., Waaseth, M., Zahl-Holmstad, B., Fagerli, M., Svendsen, K., Lehnbom, E. C., Ofstad, E. H., Risør, T., & Garcia, B. H. (2024). How much time do emergency department physicians spend on medication-related tasks? A time- and-motion study. BMC Emergency Medicine, 24(1), 56. https://doi.org/10.1186/s12873-024-00974-3

Lehnbom EC, Rakicevic A, Skjold F, Svendsen K, Anderson Y, Elenjord R. Tidsbruk i publikumsavdelinger på norske sykehus – en tids og bevegelsesstudie. Norsk Farmaceutisk Tidsskrift 2024; 1: 26–32.

2023

Zahl-Holmstad, B., Garcia, B. H., Svendsen, K., Johnsgård, T., Holis, R. v., Ofstad, E. H., Risør, T., Lehnbom, E. C., Wisløff, T., Chan, M., & Elenjord, R. (2023). Completeness of medication information in admission notes from emergency departments. BMC Health Services Research, 23(1), 1425. https://doi.org/10.1186/s12913-023-10371-4

Bergmo TS, Sandsdalen V, Manskow US, Småbrekke L, Waaseth M. Internet Use for Obtaining Medicine Information: Cross-sectional Survey. JMIR Form Res 2023;7:e40466. doi: 10.2196/40466.

Bø K-E, Halvorsen KH, Risør T, Lehnbom EC. Understanding how context influences the outcomes of pharmacist services: a qualitative interview study. Scand J Prim Health Care. 2023;1-9.

Hammar T, Bergmo TS, Bülow C, Clausen S, Manskow US, Timonen J et al. Nationally Shared Medication Lists - Describing Systems in the Nordic Countries Studies in Health Technology and Informatics, Volume 3022023

Havnes K, Svendsen K, Johansen JS, Granas AG, Garcia BH, Halvorsen KH. Is anticholinergic and sedative drug burden associated with postdischarge institutionalization in community-dwelling older patients acutely admitted to hospital? A Norwegian registry-based study. Pharmacoepidemiol Drug Saf. 2023;32(6):607-16.

Jakobsen AH, Småbrekke L, Chen TF, Halvorsen KH. Exploring stakeholders' perspectives on the quality of services provided through community pharmacies. Res Social Adm Pharm. 2023;19(9):1307-1313. doi: 10.1016/j.sapharm.2023.05.015.

Johnsgard T, Elenjord R, Lehnbom EC, Risor T, Zahl-Holmstad B, Vesela Holis R, Garcia BH. Emergency department physicians' experiences and perceptions with medication-related work tasks and the potential role of clinical pharmacists. Int J Qual Stud Health Well-being. 2023;18(1):2226941

Kristiansen E, Atherton H, Austad B, Bergmo TS, Norberg BL, Zanaboni P. Older patients' experiences of access to and use of e-consultations with the general practitioner in Norway: an interview study. Scand J Prim Health Care (2023): 41(1):33-42.

Lehnbom EC, Berbakov ME, Hoffins EL, Moon J, Welch L, Chui MA. Elevating safe use of over-the-counter medications in older adults: a narrative review of pharmacy involved interventions and recommendations for improvement. Drugs & Aging. 2023 June 20. Doi: 10.1007/s40266-023-01041-5.

Lønhaug-Næss M, Jakobsen MD, Blix BH, Bergmo TS, Hoben M, Moholt JM. Older high-cost patients in Norwegian somatic hospitals: A register-based study of patient characteristics BMJ Open 2023: 13:e074411

Zahl-Holmstad B, Garcia BH, Johnsgard T, Ofstad EH, Lehnbom EC, Svendsen K, et al. Patient perceptions and experiences with medication-related activities in the emergency department: a qualitative study. BMJ Open Qual. 2023;12(2).

Raffelsberger N, Buczek DJ, Svendsen K, Småbrekke L, Pöntinen AK, Löhr IH, Andreassen LLE, Simonsen GS; Norwegian E. coli ESBL Study Group; Sundsfjord A, Gravningen K, Samuelsen Ø. Community carriage of ESBL-producing Escherichia coli and Klebsiella pneumoniae: a cross-sectional study of risk factors and comparative genomics of carriage and clinical isolates. mSphere 2023;8(4): e0002523. Doi:101128/msphere.00025-23

Risvoll H, Risør T, Halvorsen KH, Waaseth M, Stub T, Giverhaug T, Musial F. General practitioners’ views on dietary supplements use by persons with dementia. Scand J Prim Health Care, 2023; IPRI 2283182. Available from: doi.org/10.1080/02813432.2023.2283182

2022

Adelsjö I, Nilsson L, Hellström A, Ekstedt M, Lehnbom EC. Communication about medication management during patient-physician consultations in primary care: a participant observation study. BMJ Open. 2022;12(11):e062148. Doi: 10.1136/bmjopen-2022-062148.

Dam V, Onland-Moret NC, Burgess S, Chirlaque MD, Peters SAE, Schuit E et al. Genetically determined reproductive aging and coronary heart disease: a bidirectional two-sample Mendelian Randomization. J Clin Endocrin Metab, 2022; 107(7), e2952-e2961. Doi-org.mime.uit.no/10.1210/clinem/dgac171

Hoff Roland PD, Småbrekke L. Hostemidler – hva bør du vite? NFT 2022; 132:22

Johansen JS, Halvorsen KH, Havnes K, Wetting HL, Svendsen K, Garcia BH. Intervention fidelity and process outcomes of the IMMENSE study, a pharmacist-led interdisciplinary intervention to improve medication safety in older hospitalized patients. J Clin Pharm Ther. 2022; 47(5):619-627.

Johansen JS, Halvorsen KH, Svendsen K, Havnes K, Robinson EG, Wetting HL, Garcia BH. Interdisciplinary collaboration across secondary and primary care to improve medication safety in the elderly (The IMMENSE study) - a randomized controlled trial. BMC Health Serv Res. 2022;22(1):1290.

Jøsendal, A., T. Bergmo, and A. Granås, Multidose Drug Dispensing in Primary Care. In Medication Safety in Municipal Health and Care Services. Eds Rose Mari Olsen and Hege Sletvold. Cappelen Damm Akademisk/NOASP 2022.

Karia AM, Norman R, Robison S, Lehnbom E, Laba T-L, Durakovic I, Balane C, Joshi R, Webster R. Pharmacist’s time spent: Space for Pharmacy-based Interventions and Consultation TimE (SPICE) – An observational time and motion study. BMJ Open. 2022;12:e055597. doi: 10.1136/bmjopen-2021-055597

Nymoen LD, Tran T, Walter SR, Tunestveit IK, Lehnbom EC, Øie E, Viktil KK. Emergency department physicians’ distribution of time on the fast-paced workflow – a novel time-motion study of drug-related activities. Int J Clin Pharm. 2022;44(2):448-58. doi: 10.1007/s11096-021-01364-6

Pedersen E, Primicerio R, Halvorsen KH, Eggen AE, Garcia BH, Schirmer H, et al. Medication adherence among persons with coronary heart disease and associations with blood pressure and low-density-lipoprotein-cholesterol. Eur J Clin Pharmacol. 2022; 78(5):857-867.

Sporrong SK, Kaae S, Nørgaard LS, Møllebæk M, Waaseth M, Arevalo LC et al. Challenges in qualitative social pharmacy research: Reflections based on a conference workshop. Res Social Adm Pharm. 2022;8(1), 2254-58. Available from: https://doi.org/10.1016/j.sapharm.2021.02.007

Stensen DB, Småbrekke L, Olsen K, Grimnes G, Nielsen CS, Ericson JU, Simonsen GS, Almås B, Furberg AS. Circulating sex-steroids and Staphylococcus aureus nasal carriage in a general male population. Epidemiology&Infection 2022; 150: e93. https://doi.org/10.1017/S0950268822000735

Stensen DB, Cañadas RAN, Småbrekke L, Olsen K, Nielsen CS, Svendsen K, Hanssen AM, Ericson JU, Simonsen GS, Bongo LA, Furberg AS. Social network analysis of Staphylococcus aureus carriage in a general youth population. Int J Infect Dis 2022;123: 200-209. doi: 10.1016/j.ijid.2022.08.018.

Svalestuen S, Svendsen K, Eggen AE, Småbrekke L. Association of area-level education with the regional growth trajectories of rates of antibacterial dispensing to patients under 3 years in Norway: a longitudinal retrospective study. BMJ Open 2022;12(9):e058491. doi: 10.1136/bmjopen-2021-058491.

von Hanno T, Hareide LL, Småbrekke L, Morseth B, Sneve M, Erke MG, Mathiesen EB, Bertelsen G. Macular layer thickness and effect of BMI, body fat and traditional cardiovascular risk factors: The Tromsø study. IOVS 2022; 63(9):16 https://doi.org/10.1167/iovs.63.9.16

Walquist MJ, Svendsen K, Garcia BH, Bergmo TS, Eggen AE, Halvorsen KH, et al. Self-reported medication information needs among medication users in a general population aged 40 years and above - the Tromso study. BMC Public Health. 2022;22(1):2182.

Waaseth, M., Havelkova, M., Forsdahl, G., Lund, E., & Log, T. Use of Selective Serotonin Reuptake Inhibitors - Validity of Self-Report versus Plasma Concentrations and Pharmacy Dispensations - A Cross-Sectional Analysis of the Norwegian Women and Cancer Study. Clin Epidemiol, 2022; 14, 815-826. doi.org/10.2147/CLEP.S366760

2021

Beckstrøm S, Svendsen K, Småbrekke L. Antibacterial use by birth year and birth season in children 0-2 years in Norway. Norsk Epidemiologi 2021; 29: 35-43. DOI:10.5324/nje.v29il-2.4044

Buajorde I, Kildemoes HW, Selmer R, Waaseth M. Farmakoepidemiologi – et fagfelt i stadig utvikling [Pharmacoepidemiology, a continuously progressing research field]. Norw J Epidemiol. 2021, 29(1-2) s. 2-3

Havnes K, Lehnbom EC, Walter SR, Garcia BH, Halvorsen KH. Time distribution for pharmacists conducting a randomized controlled trial-An observational time and motion study. PLoS One. 2021;16(4):e0250898.

Jøsendal AV, Bergmo TS, Granas AG: Implementation of a shared medication list in primary care – a controlled pre-post study of medication discrepancies. BMC Health Services Research 21, 1335 (2021)

Jøsendal AV and Bergmo TS. From Paper to E-Prescribing of Multidose Drug Dispensing: A Qualitative Study of Workflow in a Community Care Setting. Pharmacy 2021: 9(1): 41.

Jøsendal AV, Bergmo TS, Granas AG. The Practice Guidelines for Multidose Drug Dispensing Need Revision—An Investigation of Prescription Problems and Interventions. Pharmacy 2021: 9(1): 13.

Lupattelli A, Karlstad Ø, Engeland A, Småbrekke L, Olsen K, Øvrebust A, Waaseth, M. The Norwegian Society for Pharmacoepidemiology. Norsk Epidemiologi 2021; 29(1-2). https://doi.org/10.5324/nje.v29i1-2.4039

Mori N, Keski-Rahkonen P, Gicquiau A, Rinaldi S, Dimou N, Harlid Set al. Endogenous Circulating Sex Hormone Concentrations and Colon Cancer Risk in Postmenopausal Women: A Prospective Study and Meta-Analysis. JNCI cancer spectr. 2021;5(6), pkab084. Available from: https://doi.org/10.1093/jncics/pkab084

Pedersen E, Garcia BH, Halvorsen KH, Eggen AE, Schirmer H, Waaseth M. Adherence to prescription guidelines and achievement of treatment goals among persons with coronary heart disease in Tromsø 7. BMC Cardiovascular Disorders. 2021.

Pedersen E, Truong KNL, Garcia BH, Halvorsen KH, Svendsen K, Eggen AE, et al. Self-reported medication use among coronary heart disease patients showed high validity compared with dispensing data. J Clin Epidemiol. 2021;135:115-24.

Raffelsberger N, Hetland MAK, Svendsen K, Småbrekke L, Löhr IH, Andreassen LLE, Brisse S, Holt KE, Sundsfjord A, Samuelsen Ø, Gravningen K. Gastrointestinal carriage of Klebsiella pneumoniae in a general adult population: a cross-sectional study of risk factors and bacterial genomic diversity. Gut Microbes 2021;13(1):1939599. doi: 10.1080/19490976.2021.1939599. PMID: 34182896

Risvoll, H., Musial, F., Waaseth, M., Giverhaug, T., & Halvorsen, K. Home care service employees' contribution to patient safety in clients with dementia who use dietary supplements: a Norwegian survey. Scand J Prim Health Care. 2021;39(4), 403-412. Available from: https://doi.org/10.1080/02813432.2021.1970944

Stensen DB, Småbrekke L, Olsen K, Grimnes G, Nielsen CS, Sollid JUE, Simonsen GS, Almås B, Furberg AS. Circulating sex-steroids and Staphylococcus aureus nasal carriage in a general female population. Eur J Endocrinol 2021;184(2):337-346. doi: 10.1530/EJE-20-0877.

Vesela R, Elenjord R, Lehnbom EC, Ofstad EH, Johnsgard T, Zahl-Holmstad B, Garcia BH. Integrating the clinical pharmacist into the emergency department interdisciplinary team: a study protocol for a multicentre trial applying a non-randomised stepped-wedge study design. BMJ Open. 2021;11(11):e049645.

Waaseth M, Forsdahl S, Halvorsen KH. Influensavaksine, en spørreundersøkelse blant apotekkunder [Influenza vaccine, a survey among pharmacy customers]. Norw Pharm J. 2021;129(7), 43-49

2020

Gravningen K, Field N, Blix HS, Asfeldt AM, Småbrekke L. Non-prescription purchase of antibiotics during travel abroad among a general adult population in Norway: Findings from the seventh Tromsø Study. PLoS One 2020:13;15(2):e0228792. doi: 10.1371/journal.pone.0228792. PMID: 32053671

Hogli JU, Garcia BH, Svendsen K, Skogen V, Smabrekke L. Empirical prescribing of penicillin G/V reduces risk of readmission of hospitalized patients with community-acquired pneumonia in Norway: a retrospective observational study. BMC Pulm Med. 2020;20(1):169.

Høgli JU, Garcia BH, Svendsen K, Skogen V, Småbrekke L. Empirical prescribing of penicillin G/V reduces risk of readmission of hospitalized patients with community-acquired pneumonia in Norway: a retrospective observational study. BMC Pulm Med 2020;20(1):169. doi: 10.1186/s12890-020-01188-6. PMID: 32539706

Johansen JS, Halvorsen KH, Svendsen K, Havnes K, Garcia BH. The impact of hospitalisation to geriatric wards on the use of medications and potentially inappropriate medications - a health register study. BMC Geriatr. 2020;20(1):190.

Karia AM, Balane C, Norman R, Robinson S, Lehnbom EC, Durakovic I, Joshi R, Laba T-L, Webster R. Community pharmacist workflow: Space for Pharmacy-based Interventions and Consultation timE (SPICE) study protocol. International Journal of Pharmacy Practice. 2020;5:441-8. DOI: 10.1111/ijpp.12625

Lujan-Barroso L, Botteri E, Caini S et al. Menstrual Factors, Reproductive History, Hormone Use, and Urothelial Carcinoma Risk: A Prospective Study in the EPIC Cohort. Cancer Epidemiol Biomarkers Prev. 2020;29(8):1654-64. Available from: https://doi-org.mime.uit.no/10.1158/1055-9965.EPI-20-0184

Middleton L, Lampiao, F, Zimba T, Muzime SN, Simonsen GS, Småbrekke L, Musaya J, Solomon V, Suleman F, Sundsfjord A, Essack S. (2019) Antimicrobial stewardship and concervancy in Africa. In Halvorsen T, Orgeret KS 6 Krøvel R (eds). Sharing knowledge, Transforming Societies: The Norhed Programme 2013-2020. pp. 68-82. ISBN 978-1-928502-00-5

Raknes G, Småbrekke L. Low dose naltrexone: Effects on medication in rheumatoid and seropositive arthritis. A nationwide register-based controlled quasi-experimental before-after study. PLoS One 2019;14(10):e0223545. 10.1371/journal.pone.0212460 PMID: 31574126

Raknes G, Småbrekke L. No change in the consumption of thyroid hormones after starting low dose naltrexone (LDN): a quasi-experimental before-after study. BMC Endocr Disord 2020;20(1):151. doi: 10.1186/s12902-020-00630-4. PMID: 33004044

Zykov IN, Frimodt-Møller N, Småbrekke L, Sundsfjord A, Samuelsen Ø. Efficacy of mecillinam against clinical multidrug-resistant Escherichia coli in a murine urinary tract infection model. Int J Antimicrob Agents 2020;55(2):105851. doi: 10.1016/j.ijantimicag.2019.11.008. PMID: 31770624

2019

D'Annibali O, Bonaldo G, Donati M, Småbrekke L, Motola D, Vaccheri A. Antibacterial prescription in Italian preschool children: analysis of 7 years of data from the Emilia-Romagna region reimbursement database. J Antimicrob Chemother 2019;74(8):2434-2439. doi: 10.1093/jac/dkz153. PMID: 30993338

Baysari M, Del Gigante J, Moran M, Lehnbom E, Day R. Mandatory medication indications in electronic systems – the prescriber perspective. Stud Health Technol Inform. 2019;265:95-100. Winner of Best Paper Award 10.3233/SHTI190145

Halvorsen KH, Stadelokken T, Garcia BH. A Stepwise Pharmacist-Led Medication Review Service in Interdisciplinary Teams in Rural Nursing Homes. Pharmacy (Basel). 2019;7(4).

Halvorsen KH, Kucukcelik S, Garcia BH, Svendsen K. Assessing Potentially Inappropriate Medications in Nursing Home Residents by NORGEP-NH Criteria. Pharmacy (Basel). 2019;7(1).

Lehnbom EC, Baysari MT, Westbrook JI. Pharmacists’ expectations and perceptions of electronic medication management: lessons from Australia. In: Granja C, Solvol T (Eds.). Proceedings of the 17th Scandinavian Conference on Health Informatics, 12-13 November 2019, Oslo Norway. Issue 161. Linköpings universitet: Linköping University Electronic Press; 2019. p. 13-17.

Peute LW, Lichtner V, Baysari MT, Hägglund M, Homco J, Jansen–Kosternik S, Jauregui I, Kaipio J, Kuziemsky CE, Leite F, Lehnbom EC, Lesselroth B, Luna D, Otero C, Pedersen R, Pelayo S, Santos R, Silva N-A, Tyllinen M, van Velsen L, Zheng WY, Jaspers M, Marcilly R. Challenges and best practices in ethics review of human and organizational factors studies in health technology: a synthesis of testimonies. IMIA Yearbook 2019. DOI: 10.1055/s-0040-1701979

Raknes G, Småbrekke L. Changes in the consumption of antiepileptics and psychotropic medicines after starting low dose naltrexone: A nation-wide register-based controlled before-after study. Sci Rep 2019 21;9(1):15085.doi: 10.1038/s41598-019-51569-z. PMID: 31636347

Risvoll H, Musial F, Halvorsen KH, Giverhaug T, Waaseth M. Pharmacy employees' involvement in safeguarding persons with dementia who use dietary supplements: Results from a survey of Norwegian pharmacies. BMC Complement Altern Med. 2019;19(179):1-13. Available from: https://doi.org/10.1186/s12906-019-2587-4

Sambakunsi CS, Småbrekke L, Varga CA, Solomon V, Mponda JS. Knowledge, attitudes and practices related to self-medication with antimicrobials in Lilongwe, Malawi. Malawi Med J. 2019;31(4):225-232. doi: 10.4314/mmj.v31i4.2. PMID: 32128032

Stensen DB, Småbrekke L, Olsen K, Grimnes G, Nielsen CS, Simonsen GS, Sollid JUE, Furberg AS. Hormonal contraceptive use and Staphylococcus aureus nasal and throat carriage in a Norwegian youth population. PLoS One 2019;14(7):e0218511. doi: 10.1371/journal.pone.0218511. PMID: 31276521;

Waaseth M, Adan A, Roen IL, Eriksen K, Stanojevic T, Halvorsen KH, Garcia BH, et al. Knowledge of antibiotics and antibiotic resistance among Norwegian pharmacy customers - a cross-sectional study. BMC Public Health. 2019;19(1):66.

Waaseth M, Ademi A, Fredheim M, Antonsen MA, Brox NMB, Lehnbom EC. Medication errors and safety culture in a Norwegian hospital. Stud Health Technol Inform. 2019;265:107-112. 10.3233/SHTI190147

Waaseth M, Larsen HN, Thoresen MBS, Skeie G. Bruk av kosttilskudd blant middelaldrende norske kvinner [Dietary supplement use among middle-aged women in Norway]. Norw J Nutrition 2019;17(1):8-16

Westbrook JI, Li L, Shah S, Lehnbom EC, Prgomet M, Schofield B, Cresswell K, Slee A, Coleman J, McCloughan L, Sheikh A. A cross-country time and motion study to measure the impact of electronic medication management systems on the work of hospital pharmacists in Australia and England. International Journal of Medical Informatics. 2019;129:253-9. DOI: 10.1016/j.ijmedinf.2019.06.011

2018

Busund M, Bugge NS, Braaten T, Waaseth M, Rylander C, Lund E. Progestin-Only and Combined Oral Contraceptives and Receptor-Defined Premenopausal Breast Cancer Risk: The Norwegian Women and Cancer Study. Int J Cancer, 2018; 142(11):2293-2302. Available from: https://doi-org.mime.uit.no/10.1002/ijc.31266

Cavaye D, Lehnbom EC, Laba T-L, El-Boustani E, Joshi R, Webster R. Considering pharmacy workflow in the context of Australian community pharmacy: a pilot time and motion study. 2018;14(12):1157-62. DOI: 10.1016/j.sapharm.2018.01.003

Haldorsen B, Giske CG, Hansen DS, Helgason KO, Kahlmeter G, Löhr IH, Matuschek E, Österblad M, Rantakokko-Jalava K, Wang M, Småbrekke L, Samuelsen Ø, Sundsfjord A; NordicAST CPE Study Group. Performance of the EUCAST disc diffusion method and two MIC methods in detection of Enterobacteriaceae with reduced susceptibility to meropenem: the NordicAST CPE study. J Antimicrob Chemother 2018;73(10):2738-2747. doi: 10.1093/jac/dky276

Haugen P, Simonsen GS, Primicerio R, Furberg AS, Småbrekke L. Antibiotics to outpatients in Norway-Assessing effect of latitude and municipality population size using quantile regression in a cross-sectional study. Pharm Stat 2018;17(1):4-11. doi: 10.1002/pst.1831. PMID: 28961357

Holmqvist M, Ekstedt M, Walter SR, Lehnbom EC. Medication management in municipality based health care: a time and motion study of nurses. Home Healthcare Now. 2018;36(4):238-46. DOI: 10.1097/NHH.0000000000000671

Johansen JS, Havnes K, Halvorsen KH, Haustreis S, Skaue LW, Kamycheva E, Garcia BH. Interdisciplinary collaboration across secondary and primary care to improve medication safety in the elderly (IMMENSE study): study protocol for a randomised controlled trial. BMJ Open. 2018;8(1):e020106.

Damsgard E, Solgard H, Johannessen K, Wennevold K, Kvarstein G, Pettersen G, Garcia BH. Understanding Pain and Pain Management in Elderly Nursing Home Patients Applying an Interprofessional Learning Activity in Health Care Students: A Norwegian Pilot Study. Pain Manag Nurs. 2018;19(5):516-24.

Raknes G, Simonsen P, Småbrekke L. The Effect of Low-Dose Naltrexone on Medication in Inflammatory Bowel Disease: A Quasi Experimental Before-and-After Prescription Database Study. J Crohns Colitis. 2018:25;12(6):677-686. doi: 10.1093/ecco-jcc/jjy008

Svendsen K, Halvorsen KH, Vorren S, Samdal H, Garcia BH. Adverse drug reaction reporting: how can drug consumption information add to analyses using spontaneous reports? Eur J Clin Pharmacol. 2018;74(4):497-504.

Svendsen K, Karlstad Ø, Småbrekke L. Lower Cancer Incidence-Warfarin Effect or Immortal Time Bias? JAMA Intern Med 2018;178(4):585. doi: 10.1001/jamainternmed.2018.0370. PMID: 29610882

Zykov IN, Samuelsen Ø, Jakobsen L, Småbrekke L, Andersson DI, Sundsfjord A, Frimodt-Møller N. Pharmacokinetics and Pharmacodynamics of Fosfomycin and Its Activity against Extended-Spectrum-β-Lactamase-, Plasmid-Mediated AmpC-, and Carbapenemase-Producing Escherichia coli in a Murine Urinary Tract Infection Model. Antimicrob Agents Chemother 2018;62(6):e02560-17. doi: 10.1128/AAC.02560-17. PMID: 29581117

2017

Baysari MT, Del Gigante J, Moran M, Sandaradura I, Li L, Richardson K, Sandhu A, Lehnbom EC, Westbrook JI, Day RO. Redesign of computerized decision support to improve antimicrobial prescribing: a controlled before-and-after study. Applied Clinical Informatics 2017;(8)3:949-63. DOI: 10.4338/ACI2017040069

Garcia BH, Elenjord R, Bjornstad C, Halvorsen KH, Hortemo S, Madsen S. Safety and efficiency of a new generic package labelling: a before and after study in a simulated setting. BMJ Qual Saf. 2017;26(10):817-23.

Garcia BH, Djonne BS, Skjold F, Mellingen EM, Aag TI. Quality of medication information in discharge summaries from hospitals: an audit of electronic patient records. Int J Clin Pharm. 2017;39(6):1331-7.

Garada M, McLachlan AJ, Schiff GD, Lehnbom EC. What do Australian consumers, pharmacists and prescribers think about documenting indications on prescriptions and dispensed medicines labels?: A qualitative study. BMC Health Services Research. 2017;17(1):734. DOI: 10.1186/s12913-017-2704-3

Raknes G, Småbrekke L. A sudden and unprecedented increase in low dose naltrexone (LDN) prescribing in Norway. Patient and prescriber characteristics, and dispense patterns. A drug utilization cohort study. Pharmacoepidemiol Drug Saf 2017 Feb;26(2):136-142. doi: 10.1002/pds.4110. PMID: 27670755

Raknes G, Småbrekke L. Low-dose naltrexone and opioid consumption: a drug utilization cohort study based on data from the Norwegian prescription database. Pharmacoepidemiol Drug Saf 2017 Jun;26(6):685-693. doi: 10.1002/pds.4201. PMID: 28370746

Raknes G, Småbrekke L. Low dose naltrexone in multiple sclerosis: Effects on medication use. A quasi-experimental study. PLoS One 2017: 3;12(11):e0187423. doi: 10.1371/journal.pone.0187423. PMID: 29099849

Risvoll H, Giverhaug T, Halvorsen KH, et al. Direct and indirect risk associated with the use of dietary supplements among persons with dementia in a Norwegian memory clinic. BMC Complement Altern Med, 2017; 17(1): 261. Available from: https://doi.org/10.1186/s12906-017-1765-5

Sardaneh AA, Burke R, Ritchie A, McLachlan AJ. Lehnbom EC. Pharmacist-led admission medication reconciliation before and after the implementation of an electronic medication management system. International Journal of Medical Informatics. 2017;101:41-9. DOI: 10.1016/j.ijmedinf.2017.02.001

Sørensen M, Kuehn A, Mills ENC, Costello CA, Ollert M, Småbrekke L, Primicerio R, Wickman M, Klingenberg C. Cross-reactivity in fish allergy: A double-blind, placebo-controlled food-challenge trial. J Allergy Clin Immunol 2017;140(4):1170-1172. doi: 10.1016/j.jaci.2017.03.043. PMID: 28479332

Waaseth M, Nilsen T, Kjome RLS, Halvorsen KH. Apotekkunder med diabetes: Egenmåling av blodglukose og behov for farmasøytisk rådgivning [Pharmacy customers with diabetes: self-monitoring of blood glucose and need of pharmaceutical guidance]. Norw Pharm J. 2017; 125(9): 45-50

Westbrook JI, Li L, Hooper T, Middleton S, Raban MZ, Lehnbom EC. Effectiveness of a “Do not ‘interrupt’ bundled intervention to reduce interruptions to nurses during medication administration: a cluster randomised controlled study. BMJ Quality and Safety 2017;26:734-42. DOI: 10.1136/bmjqs-2016-006123

2016

Hogli JU, Garcia BH, Skjold F, Skogen V, Småbrekke L. An audit and feedback intervention study increased adherence to antibiotic prescribing guidelines at a Norwegian hospital. BMC Infect Dis. 2016;16:96.

Zykov IN, Sundsfjord A, Småbrekke L, Samuelsen Ø. The antimicrobial activity of mecillinam, nitrofurantoin, temocillin and fosfomycin and comparative analysis of resistance patterns in a nationwide collection of ESBL-producing Escherichia coli in Norway 2010-2011. Infect Dis (Lond) 2016;48(2):99-107. doi: 10.3109/23744235.2015.1087648. PMID: 26414659

2015

Garcia BH, Giverhaug T, Hogli JU, Skjold F, Småbrekke L. A pharmacist-led follow-up program for patients with established coronary heart disease in North Norway - a randomized controlled trial. Pharm Pract (Granada). 2015;13(2):575.

Melis M, Biagi C, Småbrekke L, Nonino F, Buccellato E, Donati M, Vaccheri A, Motola D. Drug-Induced Progressive Multifocal Leukoencephalopathy: A Comprehensive Analysis of the WHO Adverse Drug Reaction Database. CNS Drugs 2015;29(10):879-91. doi: 10.1007/s40263-015-0286-3. PMID: 26507833

Staven V, Waaseth M, Wang S, Grønlie I, Tho I. Utilization of the Tyndall Effect for Enhanced Visual Detection of Particles in Compatibility Testing of Intravenous Fluids: Validity and Reliability. PDA J Pharm Sci Technol. 2015;69(2):270-83. Available from: https://doi.org/10.5731/pdajpst.2015.01020

2014

Garcia BH, Storli SL, Småbrekke L. A pharmacist-led follow-up program for patients with coronary heart disease in North Norway--a qualitative study exploring patient experiences. BMC Res Notes. 2014;7:197.

Hogli JU, Småbrekke L, Garcia BH. MAT-CAP: a novel medication assessment tool to explore adherence to clinical practice guidelines in community-acquired pneumonia. Pharmacoepidemiol Drug Saf. 2014;23(9):933-41.

Tikk K, Sookthai D, Johnson T, Dossus L, Clavel-Chapelon F, Tjønneland A et al. Prolactin determinants in healthy women: a large cross-sectional study within the EPIC cohort. Cancer Epidemiol Biomarkers Prev. 2014. Available from: https://doi-org.mime.uit.no/10.1158/1055-9965.EPI-14-0613

Aag T, Garcia BH, Viktil KK. Should nurses or clinical pharmacists perform medication reconciliation? A randomized controlled trial. Eur J Clin Pharmacol. 2014;70(11):1325-32.

Previous years

Bakken K, Fournier A, Lund E, Waaseth M, Dumeaux V, Clavel-Chapelon F et al. Menopausal hormone therapy and breast cancer risk: Impact of different treatments. The European Prospective Investigation into Cancer and Nutrition. Int J Cancer 2011, 128:144-156. Available from: https://doi-org.mime.uit.no/10.1002/ijc.25314

Garcia BH, Småbrekke L, Trovik T, Giverhaug T. Application of the MAT-CHDSP to assess guideline adherence and therapy goal achievement in secondary prevention of coronary heart disease after percutaneous coronary intervention. Eur J Clin Pharmacol. 2013;69(3):703-9.

Garcia BH, Utnes J, Naalsund LU, Giverhaug T. MAT-CHDSP, a novel medication assessment tool for evaluation of secondary prevention of coronary heart disease. Pharmacoepidemiol Drug Saf. 2011;20(3):249-57.

Jenab M, Salvini S, van Gils CH, Brustad M, Shakya-Shrestha S, Buijsse B et al. Dietary intakes of retinol, [beta]-carotene, vitamin D and vitamin E in the European Prospective Investigation into Cancer and Nutrition cohort. Eur J Clin Nutr. 2009, 63(S4), S150-S78. Available from: https://doi-org.mime.uit.no/10.1038/ejcn.2009.79

Lund E, Mode N, Waaseth M, Thalabard J-C. Overdiagnosis of breast cancer in the Norwegian Breast Cancer Screening Program estimated by the Norwegian Women and Cancer cohort study. BMC Cancer. 2013;13(1):614. Available from: https://doi.org/10.1186/1471-2407-13-614

Lynge E, Braaten T, Njor SH, Olsen AH, Kumle M, Waaseth M, Lund E. Mammography activity in Norway 1983 to 2008. Acta Oncologica. 2011;50(7):1062-7. Available from: https://doi-org.mime.uit.no/10.3109/0284186X.2011.599339

Molden E, Garcia BH, Braathen P, Eggen AE. Co-prescription of cytochrome P450 2D6/3A4 inhibitor-substrate pairs in clinical practice. A retrospective analysis of data from Norwegian primary pharmacies. Eur J Clin Pharmacol. 2005;61(2):119-25.

Olsen KS, Fenton C, Frøyland L, Waaseth M, Paulssen RH, Lund E. Plasma Fatty Acid Ratios Affect Blood Gene Expression Profiles - A Cross-Sectional Study of the Norwegian Women and Cancer Post-Genome Cohort. PLoS One. 2013;8(6):e67270. Available from: https://doi.org/10.1371/journal.pone.0067270

Olsen AH, Lynge E, Njor SH, Kumle M, Waaseth M, Braaten T, Lund E. Breast cancer mortality in Norway after the introduction of mammography screening. Int J Cancer. 2013;132(1):208-14. Available from: https://doi-org.mime.uit.no/10.1002/ijc.27609

Olsen A, Halkjaer J, van Gils CH, Buijsse B, Verhagen H, Jenab M et al. Dietary intake of the water-soluble vitamins B1, B2, B6, B12 and C in 10 countries in the European Prospective Investigation into Cancer and Nutrition. Eur J Clin Nutr. 2009, 63(S4), S122-S49. Available from: https://doi-org.mime.uit.no/10.1038/ejcn.2009.78

Rylander C, Dumeaux V, Olsen KS, Waaseth M, Sandanger TM, Lund E. Using blood gene signatures for assessing effects of exposure to perfluoroalkyl acids (PFAAs) in humans: the NOWAC postgenome study. Int J Mol Epidemiol Genet. 2011;2(3):207-16. Available from: https://pubmed-ncbi-nlm-nih-gov.mime.uit.no/21915359/

Waaseth M, Olsen K, Rylander C, Lund E, Dumeaux V. Sex hormones and gene expression signatures in peripheral blood from postmenopausal women - the NOWAC postgenome study. BMC Medical Genomics. 2011;4(1):29. Available from: https://doi.org/10.1186/1755-8794-4-29

Waaseth M, Nakling M, Bakken K, Grimsgaard S. Use of dietary supplements and medication among postmenopausal women with vasomotor symptoms. Climacteric. 2010, 13(6), 585-93. Available from: https://doi-org.mime.uit.no/10.3109/13697130903480714

Collaboration partners

The following institutions are valuable collaboration partners for the IPSUM research group. For specific project collaboration, see the specific research project above.

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Clinical Pharmacy and Pharmacoepidemiology (IPSUM)


Group Leader: Professor Lars Småbrekke,
Department of Pharmacy, Faculty ofHealth Sciences, UiT The Arctic University of Norway, 9037 Tromsø
lars.smabrekke@uit.no
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