Denna sida på svenska
Loading profile information...

About me

I'm currently involved in both methodologic and applied research. My methodologic research is primarily concerned with methods for causal inference in observational studies, methods for analyzing sibling (e.g. twin) data, and methods for doubly robust estimation. I'm giving statistical support to applied researchers in various fields, such as genetic epidemiology and nutritional epidemiology.


  • 2002 MSc in Electrical Engineering from Royal Institute of Technology in Stockholm
  • 2004 MSc in Statistics from Stockholm University
  • 2009 PhD in Biostatistics from Karolinska Institutet in Stockholm

Research description

Current supervision of PhD students



Estimation of causal effect measures with the R-package stdReg
Sjölander A
European journal of epidemiology 2018;33(9):847-858

Mental disorders around cancer diagnosis and increased hospital admission rate - a nationwide cohort study of Swedish cancer patients
Zhu J, Sjölander A, Fall K, Valdimarsdottir U, Fang F
BMC cancer 2018;18(1):322-

Psychiatric disorders among children of parents with cancer: A Swedish register-based matched cohort study
Chen R, Regodón Wallin A, Norén Selinus E, Sjölander A, Fall K, Valdimarsdóttir U, et al
Psycho-oncology 2018;27(7):1854-1860

Specificity in Etiology of Subtypes of Bipolar Disorder: Evidence From a Swedish Population-Based Family Study
Song J, Kuja-halkola R, Sjölander A, Bergen Se, Larsson H, Landén M, et al
Biological psychiatry 2018;84(11):810-816

ADHD Medication and Substance-Related Problems
Quinn Pd, Chang Z, Hur K, Gibbons Rd, Lahey Bb, Rickert Me, et al
The American journal of psychiatry 2017;174(9):877-885

Adherence to dietary recommendations for Swedish adults across categories of greenhouse gas emissions from food
Sjörs C, Hedenus F, Sjölander A, Tillander A, Bälter K
Public health nutrition 2017;20(18):3381-3393

A longitudinal study of adolescent psychotic experiences and later development of substance use disorder and suicidal behavior
Cederlöf M, Kuja-halkola R, Larsson H, Sjölander A, Östberg P, Lundström S, et al
Schizophrenia research 2017;181():13-16

Association Between Medication Use and Performance on Higher Education Entrance Tests in Individuals With Attention-Deficit/Hyperactivity Disorder
Lu Y, Sjölander A, Cederlöf M, D'onofrio Bm, Almqvist C, Larsson H, et al
JAMA psychiatry 2017;74(8):815-822

Association Between Medication Use for Attention-Deficit/Hyperactivity Disorder and Risk of Motor Vehicle Crashes
Chang Z, Quinn Pd, Hur K, Gibbons Rd, Sjölander A, Larsson H, et al
JAMA psychiatry 2017;74(6):597-603

Confounders, Mediators, or Colliders: What Types of Shared Covariates Does a Sibling Comparison Design Control For?
Sjölander A, Zetterqvist J
Epidemiology (Cambridge, Mass.) 2017;28(4):540-547

Doubly robust estimation of attributable fractions in survival analysis
Sjölander A, Vansteelandt S
Statistical methods in medical research 2017;26(2):948-969

First-onset mental disorders after cancer diagnosis and cancer-specific mortality: a nationwide cohort study
Zhu J, Fang F, Sjölander A, Fall K, Adami Ho, Valdimarsdóttir U
Annals of oncology : official journal of the European Society for Medical Oncology 2017;28(8):1964-1969

Haemoglobin decline before coeliac disease diagnosis: a nationwide transfusion cohort study of 1.1 million blood donors
Ludvigsson Jf, Sjölander A, Murray Ja, Hjalgrim H, Edgren G
Gut 2017;66(11):2036-2037

Initiation of erythropoiesis-stimulating agents and outcomes: a nationwide observational cohort study in anaemic chronic kidney disease patients
Evans M, Carrero Jj, Bellocco R, Barany P, Qureshi Ar, Seeberger A, et al
Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association 2017;32(11):1892-1901

Is a diet low in greenhouse gas emissions a nutritious diet? - Analyses of self-selected diets in the LifeGene study
Bälter K, Sjörs C, Sjölander A, Gardner C, Hedenus F, Tillander A
Archives of public health = Archives belges de sante publique 2017;75():17-

Migraine and risk of stroke: a national population-based twin study
Lantz M, Sieurin J, Sjolander A, Waldenlind E, Sjostrand C, Wirdefeldt K
BRAIN 2017;:2663-2672

Regression standardization and attributable fraction estimation with between-within frailty models for clustered survival data
Dahlqwist E, Pawitan Y, Sjölander A
Statistical methods in medical research 2017;():962280217727558-

Shared familial risk factors between attention-deficit/hyperactivity disorder and overweight/obesity - a population-based familial coaggregation study in Sweden
Chen Q, Kuja-halkola R, Sjölander A, Serlachius E, Cortese S, Faraone Sv, et al
Journal of child psychology and psychiatry, and allied disciplines 2017;58(6):711-718

Suicidal Behavior During Lithium and Valproate Treatment: A Within-Individual 8-Year Prospective Study of 50,000 Patients With Bipolar Disorder
Song J, Sjölander A, Joas E, Bergen Se, Runeson B, Larsson H, et al
The American journal of psychiatry 2017;174(8):795-802

Towards non-conventional methods of designing register-based epidemiological studies: An application to pediatric research
Gong T, Brew B, Sjölander A, Almqvist C
Scandinavian journal of public health 2017;45(17_suppl):30-35

A cautionary note on the use of attributable fractions in cohort studies
Sjölander A
Statistical methods in medical research 2016;25(6):2434-2443

A Critical Look at Entropy-Based Gene-Gene Interaction Measures
Lee W, Sjölander A, Pawitan Y
Genetic epidemiology 2016;40(5):416-24

A Genetically Informed Study of the Associations Between Maternal Age at Childbearing and Adverse Perinatal Outcomes
Sujan Ac, Rickert Me, Class Qa, Coyne Ca, Lichtenstein P, Almqvist C, et al
Behavior genetics 2016;46(3):431-56

A Note on the Noncollapsibility of Rate Differences and Rate Ratios
Sjölander A, Dahlqwist E, Zetterqvist J
Epidemiology (Cambridge, Mass.) 2016;27(3):356-9

Bereavement Is Associated with an Increased Risk of HPV Infection and Cervical Cancer: An Epidemiological Study in Sweden
Lu D, Sundström K, Sparén P, Fall K, Sjölander A, Dillner J, et al
Cancer research 2016;76(3):643-51

Body mass index in relation to serum prostate-specific antigen levels and prostate cancer risk
Bonn Se, Sjölander A, Tillander A, Wiklund F, Grönberg H, Bälter K
International journal of cancer 2016;139(1):50-7

Carryover Effects in Sibling Comparison Designs
Sjölander A, Frisell T, Kuja-halkola R, Öberg S, Zetterqvist J
Epidemiology (Cambridge, Mass.) 2016;27(6):852-8

Depression, anxiety, and antidepressant treatment in women: association with in vitro fertilization outcome
Cesta Ce, Viktorin A, Olsson H, Johansson V, Sjölander A, Bergh C, et al
Fertility and sterility 2016;105(6):1594-1602.e3

Diet-related greenhouse gas emissions assessed by a food frequency questionnaire and validated using 7-day weighed food records
Sjörs C, Raposo Se, Sjölander A, Bälter O, Hedenus F, Bälter K
Environmental health : a global access science source 2016;15():15-

Doubly robust methods for handling confounding by cluster
Zetterqvist J, Vansteelandt S, Pawitan Y, Sjölander A
Biostatistics (Oxford, England) 2016;17(2):264-76

Familial Liability for Eating Disorders and Suicide Attempts: Evidence From a Population Registry in Sweden
Yao S, Kuja-halkola R, Thornton Lm, Runfola Cd, D'onofrio Bm, Almqvist C, et al
JAMA psychiatry 2016;73(3):284-91

Model-based estimation of the attributable fraction for cross-sectional, case-control and cohort studies using the R package AF
Dahlqwist E, Zetterqvist J, Pawitan Y, Sjölander A
European journal of epidemiology 2016;31(6):575-82

Regression standardization with the R package stdReg
Sjolander A

The roles of stress and social support in prostate cancer mortality
Jan M, Bonn Se, Sjölander A, Wiklund F, Stattin P, Holmberg E, et al
Scandinavian journal of urology 2016;50(1):47-55

Translational Epidemiologic Approaches to Understanding the Consequences of Early-Life Exposures
D'onofrio Bm, Class Qa, Rickert Me, Sujan Ac, Larsson H, Kuja-halkola R, et al
Behavior genetics 2016;46(3):315-28

A Validation Study of the Web-Based Physical Activity Questionnaire Active-Q Against the GENEA Accelerometer
Bonn Se, Bergman P, Trolle Lagerros Y, Sjölander A, Bälter K
JMIR research protocols 2015;4(3):e86-

Background risk of breast cancer and the association between physical activity and mammographic density
Trinh T, Eriksson M, Darabi H, Bonn Se, Brand Js, Cuzick J, et al

Background risk of breast cancer influences the association between alcohol consumption and mammographic density
Trinh T, Christensen Se, Brand Js, Cuzick J, Czene K, Sjölander A, et al
British journal of cancer 2015;113(1):159-65

Birth weight as an independent predictor of ADHD symptoms: a within-twin pair analysis
Pettersson E, Sjölander A, Almqvist C, Anckarsäter H, D'onofrio Bm, Lichtenstein P, et al
Journal of child psychology and psychiatry, and allied disciplines 2015;56(4):453-9

Childhood injury after a parental cancer diagnosis
Chen R, Regodón Wallin A, Sjölander A, Valdimarsdóttir U, Ye W, Tiemeier H, et al
eLife 2015;4():-

Effectiveness of the ketogenic diet used to treat resistant childhood epilepsy in Scandinavia
Hallböök T, Sjölander A, Åmark P, Miranda M, Bjurulf B, Dahlin M
European journal of paediatric neurology : EJPN : official journal of the European Paediatric Neurology Society 2015;19(1):29-36

Parental cancer diagnosis and child mortality--a population-based cohort study in Sweden
Chen R, Sjölander A, Valdimarsdóttir U, Varnum C, Almqvist C, Ye W, et al
Cancer epidemiology 2015;39(1):79-85

Physical activity and survival among men diagnosed with prostate cancer
Bonn Se, Sjölander A, Lagerros Yt, Wiklund F, Stattin P, Holmberg E, et al
Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology 2015;24(1):57-64

Semiparametric causal inference in matched cohort studies
Kennedy Eh, Sjolander A, Small Ds
BIOMETRIKA 2015;102(3):739-746

The association between Darier disease, bipolar disorder, and schizophrenia revisited: a population-based family study
Cederlöf M, Bergen Se, Långström N, Larsson H, Boman M, Craddock N, et al
Bipolar disorders 2015;17(3):340-4

Body mass index and weight change in men with prostate cancer: progression and mortality
Bonn Se, Wiklund F, Sjölander A, Szulkin R, Stattin P, Holmberg E, et al
Cancer causes & control : CCC 2014;25(8):933-43

Bounds on Causal Interactions for Binary Outcomes
Sjolander A, Lee W, Kallberg H, Pawitan Y
BIOMETRICS 2014;70(3):500-5

Bounds on sufficient-cause interaction
Sjölander A, Lee W, Källberg H, Pawitan Y
European journal of epidemiology 2014;29(11):813-20

Drug treatment for attention-deficit/hyperactivity disorder and suicidal behaviour: register based study
Chen Q, Sjölander A, Runeson B, D'onofrio Bm, Lichtenstein P, Larsson H
BMJ (Clinical research ed.) 2014;348():g3769-

Fixed-effects models and diagnosing psychiatric disorders--reply
D'onofrio Bm, Sjölander A, Lichtenstein P
JAMA psychiatry 2014;71(9):1078-9

Maternal age at childbirth and risk for ADHD in offspring: a population-based cohort study
Chang Z, Lichtenstein P, D'onofrio Bm, Almqvist C, Kuja-halkola R, Sjölander A, et al
International journal of epidemiology 2014;43(6):1815-24

Maternal pre-pregnancy body mass index and offspring attention deficit hyperactivity disorder: a population-based cohort study using a sibling-comparison design
Chen Q, Sjölander A, Långström N, Rodriguez A, Serlachius E, D'onofrio Bm, et al
International journal of epidemiology 2014;43(1):83-90

Paternal age at childbearing and offspring psychiatric and academic morbidity
D'onofrio Bm, Rickert Me, Frans E, Kuja-halkola R, Almqvist C, Sjölander A, et al
JAMA psychiatry 2014;71(4):432-8

Perceived reasons, incentives, and barriers to physical activity in Swedish elderly men
Sjörs C, Bonn Se, Trolle Lagerros Y, Sjölander A, Bälter K
Interactive journal of medical research 2014;3(4):e15-

Serious transport accidents in adults with attention-deficit/hyperactivity disorder and the effect of medication: a population-based study
Chang Z, Lichtenstein P, D'onofrio Bm, Sjölander A, Larsson H
JAMA psychiatry 2014;71(3):319-25

Between-within models for survival analysis
Sjölander A, Lichtenstein P, Larsson H, Pawitan Y
Statistics in medicine 2013;32(18):3067-76

Doubly robust estimation in generalized linear models
Orsini N, Bellocco R, Sjolander A
STATA JOURNAL 2013;13(1):185-205

Ignoring the matching variables in cohort studies - when is it valid and why?
Sjölander A, Greenland S
Statistics in medicine 2013;32(27):4696-708

Two new meal- and web-based interactive food frequency questionnaires: validation of energy and macronutrient intake
Christensen Se, Möller E, Bonn Se, Ploner A, Wright A, Sjölander A, et al
Journal of medical Internet research 2013;15(6):e109-

Active-Q: validation of the web-based physical activity questionnaire using doubly labeled water
Bonn Se, Trolle Lagerros Y, Christensen Se, Möller E, Wright A, Sjölander A, et al
Journal of medical Internet research 2012;14(1):e29-

Analysis of 1:1 Matched Cohort Studies and Twin Studies, with Binary Exposures and Binary Outcomes
Sjolander A, Johansson Alv, Lundholm C, Altman D, Almqvist C, Pawitan Y
STATISTICAL SCIENCE 2012;27(3):395-411

Medication for attention deficit-hyperactivity disorder and criminality
Lichtenstein P, Halldner L, Zetterqvist J, Sjölander A, Serlachius E, Fazel S, et al
The New England journal of medicine 2012;367(21):2006-14

Sibling comparison designs: bias from non-shared confounders and measurement error
Frisell T, Öberg S, Kuja-halkola R, Sjölander A
Epidemiology (Cambridge, Mass.) 2012;23(5):713-20

Comparing Different Strategies for Timing of Dialysis Initiation Through Inverse Probability Weighting
Sjolander A, Nyren O, Bellocco R, Evans M

Doubly robust estimation of attributable fractions
Sjolander A, Vansteelandt S
BIOSTATISTICS 2011;12(1):112-21

Estimation of attributable fractions using inverse probability weighting
Sjolander A

Reaction to Pearl's Critique of Principal Stratification
Sjolander A

A principal stratification approach to assess the differences in prognosis between cancers caused by hormone replacement therapy and by other factors
Sjolander A, Vansteelandt S, Humphreys K
The international journal of biostatistics 2010;6(1):Article-20

A Principal Stratification Approach to Assess the Differences in Prognosis between Cancers Caused by Hormone Replacement Therapy and by Other Factors
Sjolander A, Vansteelandt S, Humphreys K

Bounds on natural direct effects in the presence of confounded intermediate variables
Sjolander A
STATISTICS IN MEDICINE 2009;28(4):558-71

Propensity scores and M-structures
Sjolander A
STATISTICS IN MEDICINE 2009;28(9):1416-20

Sensitivity Analysis for Principal Stratum Direct Effects, with an Application to a Study of Physical Activity and Coronary Heart Disease
Sjolander A, Humphreys K, Vansteelandt S, Bellocco R, Palmgren J
BIOMETRICS 2009;65(2):514-20

A note on 'The method of handling non-compliance in clinical trials suggested by Sato/Matsuyama'
Sjolander A
STATISTICS IN MEDICINE 2008;27(19):3920-4

ESR1 and EGF genetic variation in relation to breast cancer risk and survival
Einarsdottir K, Darabi H, Li Y, Low Yl, Li Yq, Bonnard C, et al

On informative detection bias in screening studies
Sjolander A, Humphreys K, Palmgren J
STATISTICS IN MEDICINE 2008;27(14):2635-50

Fine mapping of disease genes using tagging SNPs
Sjolander A, Hossjer O, Hartman Lw, Humphreys K

Linkage disequilibrium mapping of CHEK2: Common variation and breast cancer risk
Einarsdottir K, Humphreys K, Bonnard C, Palmgren J, Iles Mm, Sjolander A, et al
PLOS MEDICINE 2006;3(6):e168-

Show all publications