Table 1 Demographic/clinical characteristics and group differences

Demographic characteristics

 Male gender (n, %)

210,228 (57.3)

203,306 (56.8)

6922 (80.2)

χ²₍₁₎ = 1884.85

 < .001

 Age (years; mean, SD)

47.52 (18.31)

47.72 (18.39)

39.27 (12.3)

t_(9589.19) = 62.15

 < .001

Clinical characteristics (main discharge diagnosis yes/no)

 F0 (n, %)

33,860 (9.2)

33,768 (9.4)

92 (1.1)

χ²₍₁₎ = 703.92

 < .001

 F1 (n, %)

126,221 (34.4)

121,844 (34.0)

4377 (50.7)

χ²₍₁₎ = 1037.09

 < .001

 F2 (n, %)

64,414 (17.6)

61,820 (17.3)

2594 (30.0)

χ²₍₁₎ = 950.58

 < .001

 F3 (n, %)

100,546 (27.4)

99,850 (27.9)

696 (8.1)

χ²₍₁₎ = 1665.0

 < .001

 F4 (n, %)

16,934 (4.6)

16,552 (4.6)

382 (4.4)

χ²₍₁₎ = 0.754

.385

 F5 (n, %)

645 (0.2)

643 (0.2)

2 (< 0.1)

χ²₍₁₎ = 11.75

.001

 F6 (n, %)

15,554 (4.2)

15,111 (4.2)

443 (5.1)

χ²₍₁₎ = 17.21

 < .001

 F7 (n, %)

2947 (0.8)

2923 (0.8)

24 (0.3)

χ²₍₁₎ = 30.65

 < .001

 F8 (n, %)

252 (0.1)

246 (0.1)

6 (0.1)

χ²₍₁₎ = 0.001

.978

 F9 (n, %)

884 (0.2)

876 (0.2)

8 (0.1)

χ²₍₁₎ = 8.10

.004

 F1 + F2 (n, %)

24,660 (6.7%)

22,852 (6.4%)

1808 (20.9%)

χ²₍₁₎ = 2848.37

 < .001

 F1 + F6 (n, %)

19,276 (5.3%)

18,334 (5.2%)

942 (10.9%)

χ²₍₁₎ = 567.43

 < .001

 add. psych. diagn. (mean, SD)

1.41 (1.49)

1.4 (1.5)

2.03 (1.74)

t_(8914.27) =  − 33.22

 < .001

 somatic diagn. (mean, SD)

2.29 (3.35)

2.32 (3.38)

1.18 (1.73)

t_(10299.27) = 58.62

 < .001