Table 1 Demographic data

Known ID

1125 (97)

694 (99)

0.002*

1819 (98)

Unknown ID

32 (3)

5 (1)

0.002*

37 (2)

Episodes:

1

958 (83)

635 (91)

< 0.001*

1593 (86)

2-5

152 (13)

56 (8)

< 0.001*

208 (11)

6-22

15 (1)

3 (< 0.5)

ns

18 (1)

Age:

16-25

274 (24)

311 (44)

< 0.001*

585 (32)

26-35

303 (26)

152 (22)

0.035*

455 (25)

36-45

243 (21)

102 (15)

< 0.001*

345 (19)

46-55

173 (15)

69 (10)

0.002*

242 (13)

56-65

89 (8)

33 (5)

0.014*

122 (7)

66-75

33 (3)

15 (2)

ns

48 (3)

> 75

15 (1)

13 (2)

ns

28 (2)

Unknown

27 (2)

4 (1)

0.004*

31 (2)

Residency:

Oslo

757 (65)

528 (76)

< 0.001*

1285 (69)

Outside Oslo

328 (28)

158 (23)

0.007*

486 (26)

Homeless

20 (2)

2 (0)

0.006*

22 (1)

Outside Norway

22 (2)

6 (1)

ns

28 (2)

Unknown

30 (3)

5 (1)

0.004*

35 (2)

Total individuals

1157 (100)

699 (100)

1856 (100)