Cases | Controls | |
Eligible (n) | 255 | 7651-150 |
Contacted for interview (n) | 255 | 3491-151 |
Interviewed (n) | 226 | 251 |
Next of kin interview (n (%)) | 182 (81) | 35 (14) |
Men (n (%)) | 125 (55) | 140 (56) |
Year of birth (median (10%–90%))1-152 | 1935 (1913–54) | 1934 (1913–55) |
Age (median (10%–90%))1-152 1-153 | 51 (31–71) | 52 (31–72) |
Year of diagnosis (median (10%–90%))1-152 | 1986 (1978–92) |
↵1-150 Three controls were selected for each case, matched for sex, age, and county of living, and were obtained from the study population of southern Sweden for the calendar year in which each case was diagnosed.
↵1-151 When interview information for a control could not be obtained, another control from the matched set was contacted.
↵1-152 Median (10th–90th percentiles).
↵1-153 Age at the year of diagnosis for cases. Age at the year of selection from the study population for controls.