Table 1

Characteristics of male employees in the Norwegian Fire Departments Cohort, follow-up from 1 January 1960 to 31 December 2018

	Full cohort
	n	%
Eligible for analysis	4295
Person-years at risk	117 458
Mean years of follow-up (SD)	27.3 (16.2)
Status on 31 December 2018
Emigrated	31	0.7
Dead	1218	28.4
Alive	3046	70.9
Year of birth
<1950	1696	39.5
1950–1969	1252	29.1
≥1970	1347	31.4
Age at first employment
<30	3162	73.6
30–49	1061	24.7
≥50	72	1.7
Year of first employment
<1950	707	16.4
1950–1969	643	15.0
1970–1989	1211	28.2
≥1990	1734	40.4
Age at end of follow-up
<50	1482	34.5
50–69	1552	36.1
70–84	995	23.2
≥85	266	6.2