Table 1.

Characteristics (selected) of the cohort of men and women Swedish seafarers between 1985 and 2011

	Total Person-years		Men	Women
			Person-years	Person-years
Person-years for all seafarers	1,245,691		823,523	422,168
Start < 1985	510,228		409,402	100,827
Start 1985–1991	414,350		214,096	200,254
Start > 1992	321,113		200,025	121,087
	n		n	n
Total numbers of seafarers	75,745		48,787	26,958
Positiona
Deck
Total	28,211		24,915	3296
Officers	9261		8858	403
Ratings	26,200		23,079	3121
Engine
Total	12,202		11,924	278
Officers	5940		5861	79
Ratings	10,761		10,502	259
Catering/service	42,300		17,949	24,351
Tankersa
Total	14,596		13,197	1399
Deck	8475		8061	414
Vital status 31st Dec 2011
Alive	64,034		40,473	23,561
Dead	4876		4167	709
Emigrated	6835		4147	2688
Age at start of follow-up
< 30 years	48,404		28,146	20,258
30–59 years	26,240		19,748	6492
≥ 60 years	1,101		893	208
Time first to last sea service until 2011
< 1 year	17,419		9518	7901
1–5 year	23,075		12,456	10,619
5–10 years	10,173		6176	3997
≥ 10 years	25,078		20,637	4441

^aAnalysis based on “ever” having held such a position (overlap possible)