Table 2 Characteristics of the study population from selected countries compared with Norwegians

OAEOC

2500 (100)

180 (100)

134 (100)

114 (100)

96 (100)

 DEGP (general emergency clinic)

1053 (42.2)

110 (61.1)**

73 (54.5)*

69 (60.5)**

50 (52.1)

 SOE (trauma clinic)

1447 (57.8)

70 (38.9)**

61 (45.5)*

45 (39.5)**

46 (47.9)

 Female

1245 (50.1)

90 (50.0)

64 (48.5)

49 (44.5)

39 (40.6)

 Male

1241 (49.9)

90 (50.0)

68 (51.5)

61 (55.5)

57 (59.4)

Age in years, mean (SD)

29.6 ± 20.9

25.9 ± 11.7*

25.3 ± 18.1*

18.7 ± 15.3*

29.1 ± 15.6

Paediatric/adolescent proportion, 0–19 years (%)

812 (33.0)

17 (9.5)**

53 (41.7)*

57 (56.4)**

18 (19.1)*

 Employed

1485 (61.3)

152 (84.4)**

61 (47.7)*

39 (39.8)**

69 (75.0)*

 Social welfare benefits

222 (9.2)

11 (6.1)

12 (9.4)

15 (15.3)*

11 (12.0)

 Other^b

716 (29.6)

17 (9.4)**

55 (43)*

44 (44.9)*

12 (13.0)**

 No visits

1355 (55.0)

86 (48.3)

53 (40.5)*

37 (34.9)**

49 (52.7)

 1–2 visits

828 (33.6)

62 (34.8)

51 (38.9)

45 (42.5)

33 (35.5)

 ≥ 3 visits

279 (11.3)

30 (16.9)*

27 (20.6)*

24 (22.6)**

11 (11.8)

 Mean number of visits

0.8 ± 1.2

1.1 ± 1.3*

1.4 ± 1.4**

1.4 ± 1.3**

0.9 ± 1.1

 No visits

522 (22.7)

18 (31.6)

14 (11.7)*

20 (20.6)

23 (37.7)*

 1–2 visits

997 (43.4)

28 (49.1)

44 (36.7)

41 (42.3)

23 (37.7)

 ≥ 3 visits

777 (33.8)

11 (19.3)*

62 (51.7)**

36 (37.1)

15 (24.6)

 Mean number of visits

1.9 ± 1.4

1.5 ± 1.3*

2.5 ± 1.4**

2.0 ± 1.4

1.5 ± 1.5*

 Yes

2326 (95.6)

57 (31.8)**

125 (96.9)

98 (90.7)*

61 (64.9)**

 No

69 (2.8)

114 (63.7)**

3 (2.3)

8 (7.4)*

25 (26.6)**

 Do not know

37 (1.5)

8 (4.5)*

1 (0.8)

2 (1.9)

8 (8.5)**