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About me

I am a Professor in geriatric pharmacoepidemiology at Karolinska Institutet (KI) and a licensed pharmacist. 

Since 2014, I have been the Division Head of the Aging Research Center (ARC) and since 2015, the Deputy Head of Department of neurobiology, care sciences and society.

I have scientific, pedagogical and leadership commitments:

  • My scientific production has led to ~100 articles in peer-reviewed journals, 2 book chapters and several reports and popular science presentations.
  • Under my supervision, 7 PhD students have completed their studies since 2008. I am currently the main supervisor of 1 PhD student and co-supervisor of 2 students.
  • Since 2006, as principal investigator, I have received funding from the European Union, the Swedish Research Council and the Swedish Council for Working Life and Social Research, and from several other funding sources.
  • I teach in geriatric pharmacology at first, second and third level university studies as well as to health care professionals and various non-academic organisations, such as senior citizens’ associations.
  • I am the Division Head of ARC (about 90 co-workers), where I am also one of the research team leaders. 
  • I am also Deputy Head of Department of neurobiology, care sciences and society (about 520 co-workers). 
  • My current and past memberships in Steering groups and committees include the Executive board for the Strategic Research Program in Epidemiology, the Nomination Assembly at KI, the Center for Alzheimer research, the Academic Center for Geriodontics and the Ethical Review Board

Education

2010 Associate Professor (Docent), Karolinska Institutet (KI)

2005 PhD in general medicine, KI

2004 Licentiate in public health sciences; family medicine, KI

2002 MSc Pharm (licensed pharmacist), Uppsala University

1999 Cambridge Certificate of Proficiency in English (CPE), Malta

Research description

My major research field is geriatric pharmacoepidemiology and my specific areas of research include:

  • Inappropriate drug use in older people
  • Adverse drug reactions in elderly persons
  • Drug therapy in people with dementia
  • Drug treatment at end-of-life
  • Inequalities in older people’s drug therapy
  • Decision support for drug treatment of elderly patients
  • Register-based geriatric pharmacoepidemiology

Academic honours, awards and prizes

2017 Outstanding Female Academic (AcademiaNet)

2016- Professor in geriatric pharmacoepidemiology

2014 Article selected by Faculty of 1000 (F1000Prime)

2013- Editorial board for Drugs and Aging

2012 Strategic Research Program in Epidemiology Young Scholar Award

2012 Young researcher award, Karolinska Institutet

2012- Peer-reviewer for international and national funding agencies, including the Swedish Research Council

2008-2012 The Swedish Research Council - 4-year position as Assistant Professor

2005- Invited lecturer and chair to several national and international conferences

2005- Peer-reviewer for 29 international journals, including the Lancet

Publications

Anticholinergic drug use is associated with episodic memory decline in older adults without dementia
Papenberg G, Bäckman L, Fratiglioni L, Laukka Ej, Fastbom J, Johnell K
Neurobiology of aging 2017;55():27-32

Atrial fibrillation and use of antithrombotic medications in older people: A population-based study
Ding M, Fratiglioni L, Johnell K, Fastbom J, Ljungdahl M, Qiu C
International journal of cardiology 2017;249():173-178

Choosing Wisely? Measuring the Burden of Medications in Older Adults near the End of Life: Nationwide, Longitudinal Cohort Study
Morin L, Vetrano Dl, Rizzuto D, Calderón-larrañaga A, Fastbom J, Johnell K
The American journal of medicine 2017;130(8):927-936.e9

Clinical Outcomes Associated with Medication Regimen Complexity in Older People: A Systematic Review
Wimmer Bc, Cross Aj, Jokanovic N, Wiese Md, George J, Johnell K, et al
Journal of the American Geriatrics Society 2017;65(4):747-753

Cognitive and Physical Function in Relation to the Risk of Injurious Falls in Older Adults: A Population-Based Study
Welmer Ak, Rizzuto D, Laukka Ej, Johnell K, Fratiglioni L
The journals of gerontology. Series A, Biological sciences and medical sciences 2017;72(5):669-675

Diabetes in a Large Dementia Cohort: Clinical Characteristics and Treatment From the Swedish Dementia Registry
Secnik J, Cermakova P, Fereshtehnejad Sm, Dannberg P, Johnell K, Fastbom J, et al
Diabetes care 2017;40(9):1159-1166

Drug Use in Older Adults with Amyotrophic Lateral Sclerosis Near the End of Life
Grande G, Morin L, Vetrano Dl, Fastbom J, Johnell K
Drugs & aging 2017;34(7):529-533

Is the level of education associated with transitions between care settings in older adults near the end of life? A nationwide, retrospective cohort study
Kelfve S, Wastesson J, Fors S, Johnell K, Morin L
Palliative medicine 2017;():269216317726249-

Living Alone with Alzheimer's Disease: Data from SveDem, the Swedish Dementia Registry
Cermakova P, Nelson M, Secnik J, Garcia-ptacek S, Johnell K, Fastbom J, et al
Journal of Alzheimer's disease : JAD 2017;58(4):1265-1272

Management of Acute Myocardial Infarction in Patients With Dementia: Data From SveDem, the Swedish Dementia Registry
Cermakova P, Szummer K, Johnell K, Fastbom J, Winblad B, Eriksdotter M, et al
Journal of the American Medical Directors Association 2017;18(1):19-23

Medications That Cause Dry Mouth As an Adverse Effect in Older People: A Systematic Review and Metaanalysis
Tan Ec, Lexomboon D, Sandborgh-englund G, Haasum Y, Johnell K
Journal of the American Geriatrics Society 2017;():-

Prestroke Mobility and Dementia as Predictors of Stroke Outcomes in Patients Over 65 Years of Age: A Cohort Study From The Swedish Dementia and Stroke Registries
Garcia-ptacek S, Contreras Escamez B, Zupanic E, Religa D, Von Koch L, Johnell K, et al
Journal of the American Medical Directors Association 2017;():-

Psychotropic drugs and the risk of fall injuries, hospitalisations and mortality among older adults
Johnell K, Jonasdottir Bergman G, Fastbom J, Danielsson B, Borg N, Salmi P
International journal of geriatric psychiatry 2017;32(4):414-420

Risk profiles for injurious falls in people over 60: a population-based cohort study
Ek S, Rizzuto D, Fratiglioni L, Johnell K, Xu W, Welmer Ak
The journals of gerontology. Series A, Biological sciences and medical sciences 2017;():-

Sex Differences in the Association Between Pain and Injurious Falls in Older Adults: A Population-Based Longitudinal Study
Welmer Ak, Rizzuto D, Calderon-larranaga A, Johnell K
AMERICAN JOURNAL OF EPIDEMIOLOGY 2017;186(9):1049-1056

Thrombolysis in acute ischemic stroke in patients with dementia: A Swedish registry study
Zupanic E, Von Euler M, Kåreholt I, Contreras Escamez B, Fastbom J, Norrving B, et al
Neurology 2017;89(18):1860-1868

Towards a postponement of activities of daily living dependence and mobility limitations: Trends in healthy life years in old age in Sweden
Lagergren M, Johnell K, Schön P, Danielsson M
Scandinavian journal of public health 2017;45(5):520-527

Use of antiepileptic drugs and risk of falls in old age: A systematic review
Haasum Y, Johnell K
Epilepsy research 2017;138():98-104

Use of Medications of Questionable Benefit During the Last Year of Life of Older Adults With Dementia
Morin L, Vetrano Dl, Grande G, Fratiglioni L, Fastbom J, Johnell K
Journal of the American Medical Directors Association 2017;18(6):551.e1-551.e7

Aggressiveness of End-of-Life Care for Hospitalized Individuals with Cancer with and without Dementia: A Nationwide Matched-Cohort Study in France
Morin L, Beaussant Y, Aubry R, Fastbom J, Johnell K
Journal of the American Geriatrics Society 2016;64(9):1851-7

Antidepressants and mortality risk in a dementia cohort: data from SveDem, the Swedish Dementia Registry
Enache D, Fereshtehnejad Sm, Kåreholt I, Cermakova P, Garcia-ptacek S, Johnell K, et al
Acta psychiatrica Scandinavica 2016;134(5):430-440

Coexisting chronic conditions in the older population: Variation by health indicators
Marengoni A, Angleman S, Meinow B, Santoni G, Mangialasche F, Rizzuto D, et al
European journal of internal medicine 2016;31():29-34

Depression and Depression Treatment in a Population-Based Study of Individuals Over 60 Years Old Without Dementia
Karlsson B, Johnell K, Sigström R, Sjöberg L, Fratiglioni L
The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry 2016;24(8):615-623

Discussing end-of-life issues in nursing homes: a nationwide study in France
Morin L, Johnell K, Van Den Block L, Aubry R
Age and ageing 2016;45(3):395-402

Expanding the Proportion of Life With Polypharmacy in Sweden: 2006-2013
Wastesson Jw, Fastbom J, Johnell K
Journal of the American Medical Directors Association 2016;17(10):957-8

Healthy life years in old age: Swedish development 1980-2010 according to different health indicators
Lagergren M, Johnell K, Schön P, Danielsson M
Scandinavian journal of public health 2016;44(1):55-61

Medication Regimen Complexity and Number of Medications as Factors Associated With Unplanned Hospitalizations in Older People: A Population-based Cohort Study
Wimmer Bc, Bell Js, Fastbom J, Wiese Md, Johnell K
The journals of gerontology. Series A, Biological sciences and medical sciences 2016;71(6):831-7

Medication Regimen Complexity and Polypharmacy as Factors Associated With All-Cause Mortality in Older People: A Population-Based Cohort Study
Wimmer Bc, Bell Js, Fastbom J, Wiese Md, Johnell K
The Annals of pharmacotherapy 2016;50(2):89-95

Prevalence of Potentially Inappropriate Medication Use in Older Adults Living in Nursing Homes: A Systematic Review
Morin L, Laroche Ml, Texier G, Johnell K
Journal of the American Medical Directors Association 2016;17(9):862.e1-9

Remaining Life Expectancy With and Without Polypharmacy: A Register-Based Study of Swedes Aged 65 Years and Older
Wastesson Jw, Canudas-romo V, Lindahl-jacobsen R, Johnell K
Journal of the American Medical Directors Association 2016;17(1):31-5

Response to Timo E. Strandberg
Gnjidic D, Fastbom J, Johnell K
Journal of the American Geriatrics Society 2016;64(9):1927-8

Statin Therapy and Dementia in Older Adults: Role of Disease Severity and Multimorbidity
Gnjidic D, Fastbom J, Fratiglioni L, Rizzuto D, Angleman S, Johnell K
Journal of the American Geriatrics Society 2016;64(1):223-4

The impact of dementia on drug costs in older people: results from the SNAC study
Sköldunger A, Fastbom J, Wimo A, Fratiglioni L, Johnell K
BMC neurology 2016;16():28-

The Polypharmacy Mouse Model: Novel Findings and New Opportunities
Johnell K
The journals of gerontology. Series A, Biological sciences and medical sciences 2016;71(5):569-70

Time trends in 20 years of medication use in older adults: Findings from three elderly cohorts in Stockholm, Sweden
Craftman Åg, Johnell K, Fastbom J, Westerbotn M, Von Strauss E
Archives of gerontology and geriatrics 2016;63():28-35

Use of antidepressants in Parkinson's disease: A Swedish register-based study of over 1.5 million older people
Haasum Y, Fastbom J, Johnell K
Parkinsonism & related disorders 2016;27():85-8

Use of Fall-Risk Inducing Drugs in Patients Using Anti-Parkinson Drugs (APD): A Swedish Register-Based Study
Haasum Y, Fastbom J, Johnell K
PloS one 2016;11(8):e0161246-

Cardiovascular Diseases in ~30,000 Patients in the Swedish Dementia Registry
Cermakova P, Johnell K, Fastbom J, Garcia-ptacek S, Lund Lh, Winblad B, et al
Journal of Alzheimer's disease : JAD 2015;48(4):949-58

Educational disparities in antipsychotic drug use among older people with and without dementia in Sweden
Wastesson Jw, Ringbäck Weitoft G, Johnell K
Acta psychiatrica Scandinavica 2015;132(1):20-8

Factors associated with medication regimen complexity in older people: a cross-sectional population-based study
Wimmer Bc, Johnell K, Fastbom J, Wiese Md, Bell Js
EUROPEAN JOURNAL OF CLINICAL PHARMACOLOGY 2015;71(9):1099-108

Heart failure and dementia: survival in relation to types of heart failure and different dementia disorders
Cermakova P, Lund Lh, Fereshtehnejad Sm, Johnell K, Winblad B, Dahlström U, et al
European journal of heart failure 2015;17(6):612-9

Impact of Inappropriate Drug Use on Hospitalizations, Mortality, and Costs in Older Persons and Persons with Dementia: Findings from the SNAC Study
Sköldunger A, Fastbom J, Wimo A, Fratiglioni L, Johnell K
Drugs & aging 2015;32(8):671-8

Inappropriate Drug Use in People with Cognitive Impairment and Dementia: A Systematic Review
Johnell K
Current clinical pharmacology 2015;10(3):178-84

Incidence of antipsychotic use in relation to diagnosis of Alzheimer's disease among community-dwelling persons
Koponen M, Tolppanen Am, Taipale H, Tanskanen A, Tiihonen J, Johnell K, et al
The British journal of psychiatry : the journal of mental science 2015;207(5):444-9

National indicators for quality of drug therapy in older persons: the Swedish experience from the first 10 years
Fastbom J, Johnell K
Drugs & aging 2015;32(3):189-99

Potentially inappropriate drug use in older people: a nationwide comparison of different explicit criteria for population-based estimates
Morin L, Fastbom J, Laroche Ml, Johnell K
British journal of clinical pharmacology 2015;80(2):315-24

Prevalence, pharmacological treatment, and control of cardiometabolic risk factors among older people in central Stockholm: a population-based study
Wang R, Fratiglioni L, Liang Y, Welmer Ak, Xu W, Mangialasche F, et al
PloS one 2015;10(3):e0119582-

Type, number or both? A population-based matched case-control study on the risk of fall injuries among older people and number of medications beyond fall-inducing drugs
Laflamme L, Monárrez-espino J, Johnell K, Elling B, Möller J
PloS one 2015;10(3):e0123390-

Use of medications and functional dependence among Chinese older adults in a rural community: A population-based study
Liang Y, Johnell K, Yan Z, Cai C, Jiang H, Welmer Ak, et al
Geriatrics & gerontology international 2015;15(12):1242-8

Variation in the place of death among nursing home residents in France
Morin L, Johnell K, Aubry R
Age and ageing 2015;44(3):415-21

Anti-dementia drugs and co-medication among patients with Alzheimer's disease : investigating real-world drug use in clinical practice using the Swedish Dementia Quality Registry (SveDem)
Fereshtehnejad Sm, Johnell K, Eriksdotter M
Drugs & aging 2014;31(3):215-24

Cardiovascular medication burden in dementia disorders: a nationwide study of 19,743 dementia patients in the Swedish Dementia Registry
Cermakova P, Fereshtehnejad Sm, Johnell K, Winblad B, Eriksdotter M, Religa D
Alzheimer's research & therapy 2014;6(3):34-

Cardiovascular medication burden in dementia disorders: a nationwide study of 19, 743 dementia patients in the Swedish Dementia Registry (vol 6, pg 34, 2014)
Cermakova P, Fereshtehnejad Sm, Johnell K, Winblad B, Eriksdotter M, Religa D
ALZHEIMERS RESEARCH & THERAPY 2014;6(5):63-

Inequalities in health care use among older adults in Sweden 1992-2011: A repeated cross-sectional study of Swedes aged 77 years and older
Wastesson Jw, Fors S, Parker Mg, Johnell K
SCANDINAVIAN JOURNAL OF PUBLIC HEALTH 2014;42(8):795-803

Managing Therapeutic Competition in Patients with Heart Failure, Lower Urinary Tract Symptoms and Incontinence
Tannenbaum C, Johnell K
DRUGS & AGING 2014;31(2):93-101

Medication Regimen Complexity and Unplanned Hospital Readmissions in Older People
Wimmer Bc, Dent E, Bell Js, Wiese Md, Chapman I, Johnell K, et al
ANNALS OF PHARMACOTHERAPY 2014;48(9):1120-1128

Patterns of cardiovascular drugs prescribed for an elderly Swedish population
Ding Mz, Wang R, Johnell K, Qiu Cx
INTERNATIONAL JOURNAL OF CARDIOLOGY 2014;177(3):1091-4

Polypharmacy and Medication Regimen Complexity as Factors Associated with Hospital Discharge Destination Among Older People: A Prospective Cohort Study
Wimmer Bc, Dent E, Visvanathan R, Wiese Md, Johnell K, Chapman I, et al
DRUGS & AGING 2014;31(8):623-30

Prevalence and Impact of Fall-Risk-Increasing Drugs, Polypharmacy, and Drug-Drug Interactions in Robust Versus Frail Hospitalised Falls Patients: A Prospective Cohort Study
Bennett A, Gnjidic D, Gillett M, Carroll P, Matthews S, Johnell K, et al
DRUGS & AGING 2014;31(3):225-32

Socioeconomic inequalities in access to specialized psychotropic prescribing among older Swedes: a register-based study
Wastesson Jw, Fastbom J, Ringbäck Weitoft G, Fors S, Johnell K
European journal of public health 2014;24(6):991-6

The role of marital status in the association between benzodiazepines, psychotropics and injurious road traffic crashes: a register-based nationwide study of senior drivers in Sweden
Johnell K, Laflamme L, Möller J, Monárrez-espino J
PloS one 2014;9(1):e86742-

Clinical implications from drug-drug and drug-disease interactions in older people
Gnjidic D, Johnell K
CLINICAL AND EXPERIMENTAL PHARMACOLOGY AND PHYSIOLOGY 2013;40(5):320-5

Differences in drug therapy between dementia disorders in the Swedish dementia registry: a nationwide study of over 7,000 patients
Johnell K, Religa D, Eriksdotter M
Dementia and geriatric cognitive disorders 2013;35(5-6):239-48

Different patterns in use of antibiotics for lower urinary tract infection in institutionalized and home-dwelling elderly: a register-based study
Haasum Y, Fastbom J, Johnell K
European journal of clinical pharmacology 2013;69(3):665-71

Drug treatment in older people before and after the transition to a multi-dose drug dispensing system--a longitudinal analysis
Wallerstedt Sm, Fastbom J, Johnell K, Sjöberg C, Landahl S, Sundström A
PloS one 2013;8(6):e67088-

Educational level and use of osteoporosis drugs in elderly men and women: a Swedish nationwide register-based study
Wastesson Jw, Ringbäck Weitoft G, Parker Mg, Johnell K
Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA 2013;24(2):433-42

Is drug treatment for dementia followed up in primary care? A Swedish study of dementia clinics and referring primary care centres
Sonde L, Johnell K
PloS one 2013;8(2):e57161-

Mortality and treatment costs have a great impact on the cost-effectiveness of disease modifying treatment in Alzheimer's disease--a simulation study
Sköldunger A, Johnell K, Winblad B, Wimo A
Current Alzheimer research 2013;10(2):207-16

Multidose drug dispensing and optimising drug use in older people
Bell Js, Johnell K, Wimmer Bc, Wiese Md
AGE AND AGEING 2013;42(5):556-8

Comparison of Prescription Drug Use between Community-Dwelling and Institutionalized Elderly in Sweden
Johnell K, Fastbom J
DRUGS & AGING 2012;29(9):751-8

Drug use in centenarians compared with nonagenarians and octogenarians in Sweden: a nationwide register-based study
Wastesson Jw, Parker Mg, Fastbom J, Thorslund M, Johnell K
AGE AND AGEING 2012;41(2):218-24

Institutionalization as a Risk Factor for Inappropriate Drug Use in the Elderly: A Swedish Nationwide Register-Based Study
Haasum Y, Fastbom J, Johnell K
ANNALS OF PHARMACOTHERAPY 2012;46(3):339-46

Net costs of dementia in Sweden - An Incidence Based 10 Year Simulation Study
Skoldunger A, Wimo A, Johnell K
INTERNATIONAL JOURNAL OF GERIATRIC PSYCHIATRY 2012;27(11):1112-7

Undertreatment of osteoporosis in persons with dementia? A population-based study
Haasum Y, Fastbom J, Fratiglioni L, Johnell K
OSTEOPOROSIS INTERNATIONAL 2012;23(3):1061-8

Antiepileptic drug use in community-dwelling and institutionalized elderly: a nationwide study of over 1 300 000 older people
Johnell K, Fastbom J
EUROPEAN JOURNAL OF CLINICAL PHARMACOLOGY 2011;67(10):1069-75

Association between Multi-Dose Drug Dispensing and Quality of Drug Treatment - A Register-Based Study
Sjoberg C, Edward C, Fastbom J, Johnell K, Landahl S, Narbro K, et al
PLOS ONE 2011;6(10):e26574-

Dementia management programme in a community setting and the use of psychotropic drugs in the elderly population
Jedenius E, Johnell K, Fastbom J, Stromqvist J, Winblad B, Andreasen N
SCANDINAVIAN JOURNAL OF PRIMARY HEALTH CARE 2011;29(3):181-6

Dopaminergic and Serotonergic Drug Use: A Nationwide Register-Based Study of Over 1 300 000 Older People
Johnell K, Fischer H
PLOS ONE 2011;6(8):e23750-

Gender and use of hypnotics or sedatives in old age: a nationwide register-based study
Johnell K, Fastbom J
INTERNATIONAL JOURNAL OF CLINICAL PHARMACY 2011;33(5):788-93

Pain Treatment in Elderly Persons With and Without Dementia A Population-Based Study of Institutionalized and Home-Dwelling Elderly
Haasum Y, Fastbom J, Fratiglioni L, Kareholt I, Johnell K
DRUGS & AGING 2011;28(4):283-93

UNDERTREATMENT OF OSTEOPOROSIS IN ELDERLY WITH DEMENTIA? A POPULATION-BASED STUDY
Haasum Y, Fastbom J, Fratiglioni L, Johnell K
OSTEOPOROSIS INTERNATIONAL 2011;:280-280

Use of analgesics and psychotropics in elderly with and without dementia: a population-based study of institutionalized and home-dwelling elderly
Haasum Y, Fastbom J, Johnell K
PHARMACY WORLD & SCIENCE 2010;32(5):674-674

GENDER DIFFERENCES IN INAPPROPRIATE DRUG USE: A REGISTER-BASED STUDY OF OVER 600 000 OLDER PEOPLE
Johnell K, Weitoft Gr, Fastbom J
GERONTOLOGIST 2009;:112-112

Sex Differences in Inappropriate Drug Use: a Register-Based Study of Over 600,000 Older People
Johnell K, Weitoft Gr, Fastborn J
ANNALS OF PHARMACOTHERAPY 2009;43(7-8):1233-8

The Influence of Educational Level on Polypharmacy and Inappropriate Drug Use: A Register-Based Study of More Than 600,000 Older People
Haider Si, Johnell K, Weitoft Gr, Thorslund M, Fastbom J
JOURNAL OF THE AMERICAN GERIATRICS SOCIETY 2009;57(1):62-9

The use of benzodiazpines and related drugs amongst older people in Sweden: Associated factors and concomitant use of other psychotropics
Johnell K, Fastbom J
INTERNATIONAL JOURNAL OF GERIATRIC PSYCHIATRY 2009;24(7):731-8

UNDERTREATMENT OF OSTEOPOROSIS AMONG THE OLDEST OLD? A NATIONWIDE STUDY OF OVER 700 000 OLDER PEOPLE
Johnell K, Fastbom J
OSTEOPOROSIS INTERNATIONAL 2009;20(1):179-179

Undertreatment of osteoporosis in the oldest old? A nationwide study of over 700,000 older people
Johnell K, Fastbom J
Archives of osteoporosis 2009;4(1-2):17-23

Analysis of the association between polypharmacy and socioeconomic position among elderly aged 77 years in Sweden
Haider Si, Johnell K, Thorslund M, Fastbom J
CLINICAL THERAPEUTICS 2008;30(2):419-27

Concomitant Use of Gastroprotective Drugs among Elderly NSAID/COX-2 Selective Inhibitor Users A Nationwide Register-Based Study
Johnell K, Fastbom J
CLINICAL DRUG INVESTIGATION 2008;28(11):687-95

Concurrent Use of Anticholinergic Drugs and Cholinesterase Inhibitors Register-Based Study of Over 700 000 Elderly Patients
Johnell K, Fastbom J
DRUGS & AGING 2008;25(10):871-7

Education and use of dementia drugs: A register-based study of over 600,000 older people
Johnell K, Weitoft Gr, Fastbom J
DEMENTIA AND GERIATRIC COGNITIVE DISORDERS 2008;25(1):54-9

Multi-dose drug dispensing and inappropriate drug use: A nationwide register-based study of over 700000 elderly
Johnell K, Fastbom J
SCANDINAVIAN JOURNAL OF PRIMARY HEALTH CARE 2008;26(2):86-91

Patient educational level and use of newly marketed drugs: a register-based study of over 600,000 older people
Haider Si, Johnell K, Weitoft Gr, Thorslund M, Fastbom J
EUROPEAN JOURNAL OF CLINICAL PHARMACOLOGY 2008;64(12):1215-22

The association between use of cardiovascular drugs and antidepressants: a nationwide register-based study
Johnell K, Fastbom J
EUROPEAN JOURNAL OF CLINICAL PHARMACOLOGY 2008;64(11):1119-24

Inappropriate drug use in the elderly: a nationwide register-based study
Johnell K, Fastbom J, Rosen M, Leimanis A
ANNALS OF PHARMACOTHERAPY 2007;41(7-8):1243-8

The relationship between number of drugs and potential drug-drug interactions in the elderly - A study of over 600 000 elderly patients from the Swedish prescribed drug register
Johnell K, Klarin I
DRUG SAFETY 2007;30(10):911-8

Trends in polypharmacy and potential drug-drug interactions across educational groups in elderly patients in Sweden for the period 1992-2002
Haider Si, Johnell K, Thorslund M, Fastbom J
INTERNATIONAL JOURNAL OF CLINICAL PHARMACOLOGY AND THERAPEUTICS 2007;45(12):643-53

A brief conceptual tutorial of multilevel analysis in social epidemiology: using measures of clustering in multilevel logistic regression to investigate contextual phenomena
Merlo J, Chaix B, Ohlsson H, Beckman A, Johnell K, Hjerpe P, et al
JOURNAL OF EPIDEMIOLOGY AND COMMUNITY HEALTH 2006;60(4):290-7

Anxiolytic-hypnotic drug use associated with trust, social participation, and the miniaturization of community: A multilevel analysis
Johnell K, Lindstrom M, Melander A, Sundquist J, Eriksson C, Merlo J
SOCIAL SCIENCE & MEDICINE 2006;62(5):1205-14

Individual characteristics, area social participation, and primary non-concordance with medication: a multilevel analysis
Johnell K, Lindstrom M, Sundquist J, Eriksson C, Merlo J
BMC PUBLIC HEALTH 2006;:52-

Neighborhood social participation, use of anxiolytic-hypnotic drugs, and women's propensity for disability pension: a multilevel analysis
Johnell K, Mansson No, Sundquist J, Melander A, Blennow G, Merlo J
SCANDINAVIAN JOURNAL OF PUBLIC HEALTH 2006;34(1):41-8

Low adherence with antihypertensives in actual practice: the association with social participation - a multilevel analysis
Johnell K, Rastam L, Lithman T, Sundquist J, Merlo J
BMC PUBLIC HEALTH 2005;:17-

Neighbourhood social participation and women's use of anxiolytic-hypnotic drugs: a multilevel analysis
Johnell K, Merlo J, Lynch J, Blennow G
JOURNAL OF EPIDEMIOLOGY AND COMMUNITY HEALTH 2004;58(1):59-64

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