Matched on age, sex, BMI, education level, cardiovascular disease, diabetes,
history of self-harm, substance abuse, visits in psychiatric care, use of
antidepressants, and use of anxiolytics.
Additional adjustment was made for age, BMI and income as continuous variables,
as well as for marital status, disability pension, and unemployment status as
binary variables.
Incidence rates and hazard ratios are weighted by the strata size to account for
the matching.
Inpatient care only: Refers to case ascertainment excluding data from the
outpatient component from the National Patient Register. Psychiatric history:
Baseline characteristics for the subgroup with psychiatric history are provided
in eTable5.