Table 1

Characteristics of the study cohort. Refugees (n=29 139) and immigrants (27 134) and their matched Danish-born control groups are distributed by sex

Female refugeesDanesMale refugeesDanesFemale immigrantsDanesMale immigrantsDanes
% (n)% (n)% (n)% (n)% (n)% (n)% (n)% (n)
Regional of origin
 Asia1.8 (238) 3.1 (509) 27.3 (4996) 10.8 (955)
 East Europe2.0 (258) 1.8 (297) 16.8 (3100) 5.4 (481)
 Former Yugoslavia57.2 (7404) 49.2 (7965) 5.7 (1038) 9.8 (856)
 Iraq11.3 (1464) 19.5 (3154) 6.5 (1185) 2.0 (180)
 Middle East10.3 (1329) 10.0 (1625) 27.8 (5088) 47.3 (4140)
 North Africa15.7 (2031) 14.5 (2335) 9.8 (1826) 15.0 (1322)
 Sub-Saharan Africa1.7 (225) 1.9 (305) 6.1 (1121) 9.7 (846)
 Total100 (12 949)100 (51 796)100 (16 190)100 (64 760)100 (18 354)100 (73 416)100 (8780)100 (35 118)
Sex44.4 (12 949)44.4 (51 796)55.6 (16 190)55.6 (64 760)67.6 (18 354)67.6 (73 416)32.4 (8780)32.4 (35 118)
Events during follow-up
 Total deaths3.7 (481)4.7 (2451)4.0 (657)5.2 (3377)0.9 (171)1.9 (1411)1.6 (143)3.3 (1164)
 Emigrations13.6 (1765)3.8 (1977)14.3 (2324)5.0 (3212)17.6 (3222)6.0 (4458)22.9 (2017)6.6 (2333)
 Population at closure 31 December 200783.0 (10 703)91.5 (47 368)81.7 (13 209)88.8 (58 171)81.5 (14 961)92.1 (67 547)75.4 (6620)90.1 (31 621)
Median age at entry 21 December 199933.1 (26.5;42.9)33.1 (26.5;42.9)32.7 (26.4;41.0)32.6 (26.4;41.0)26.6 (22.2;33.1)26.6 (22.2;33.1)27.0 (23.4;32.5)27.0 (23.4;32.4)
Median age at study end 31 December 200744.3 (37.1;54.2)44.7 (37.7;54.5)43.5 (37.0;52.2)43.9 (37.6;52.4)36.8 (32.1;43.4)37.5 (32.8;44.1)36.9 (32.8;42.2)37.8 (33.8;43.3)
Median follow-up in years12.1 (10.3;12.4)12.1 (10.7;12.5)11.9 (9.7;12.4)12.1 (10.5;12.5)10.6 (9.0;12.4)10.9 (9.2;12.6)10.5 (9.0;12.2)10.8 (9.2;12.4)