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. 2020 May 19;20:437. doi: 10.1186/s12913-020-05311-5

Table 2.

Descriptive statistics by site

Total Kristiansand Sandnes Test statistic
PHQ-9 Baseline, % (n) χ2(4) = 2.18
 None (0–4) 2.5 (13) 1.8 (4) 2.9 (9)
 Mild (5–9) 18.3 (96) 17.0 (37) 19.2 (59)
 Moderate (10–14) 33.3 (175) 32.6 (71) 33.8 (104)
 Moderately severe (15–19) 31.2 (164) 31.7 (69) 30.8 (95)
 Severe (> 19) 14.8 (78) 17.0 (37) 13.3 (41)
GAD-7 Baseline, % (n) χ2(3) = 6.65
 None (0–4) 8.0 (42) 7.3 (16) 8.4 (26)
 Mild (5–9) 27.0 (142) 23.4 (51) 29.5 (91)
 Moderate (10–14) 39.0 (205) 37.6 (82) 39.9 (123)
 Severe (> 14) 26.1 (137) 31.7 (69) 22.1 (68)
Work status baseline, % (n) χ2(2) = 10.88**
 Work no support 37.8 (199) 39.4 (86) 36.7 (113)
 Work with support 37.3 (196) 29.8 (65) 42.5 (131)
 Not at work 24.9 (131) 30.7 (67) 20.8 (64)
Waiting times, median (IQR)
 Days between initial contact and assessment 12 (7–17) 12 (7–17) 12 (7–17) U = 28611
 Days between assessment and first treatment session 13 (8–23) 15 (9–28.5) 13 (7–22) U = 19309*
 Days between initial contact and first treatment session 27 (18–39) 28 (18.3–42.8) 27 (18–38) U = 21759
Therapy duration, median (IQR)
 Number of sessions 4 (4–9) 4 (3–6) 5 (4–10) U = 38350***
 Number of weeks 9.4 (4.9–21.1) 7.4 (4–16) 10.7 (4.7–24.7) U = 40080***
Treatment form, % (n) χ2(3) = 9.70**
 Guided self-help 1.0 (5) 2.1 (4) .3 (1)
 Group-based psychoeducation 36.5 (175) 40.8 (78) 33.7 (97)
 Individual CBT 29.4 (141) 30.9 (59) 28.5 (82)
 Mixed 33.0 (158) 26.2 (50) 37.5 (108)
Referral, % (n) χ2(2) = 25.75***
 GP 9.8 (49) 5.8 (12) 12.5 (37)
 Self, recommended by GP 50.0 (251) 44.7 (92) 53.7 (159)
 Self 33.3 (167) 45.1 (93) 25.0 (74)
 Others 7.0 (35) 4.4 (9) 8.8 (26)
Work-focus in treatment, median (IQR)
 Full sample 3 (2–3) 2 (1–3) 3 (2–4) U = 40752***
 Sick-listed at baseline (n = 187) 3 (2–4) 3 (1.8–3) 3 (3–4) U = 4624***
Collaboration with external parties, % (n)†
 None 85.3 (435) 91.5 (194) 80.9 (241) χ2(1) = 11.17***
 GP 8.8 (45) 2.4 (5) 13.4 (40) χ2(1) = 18.85***
 Secondary care services 0.8 (4) 0 (0) .8 (4) χ2(1) = 2.89
 Work and social services 2.8 (14) .9 (2) 4.0 (12) χ2(1) = 4.41*
 Work place 0.8 (4) .5 (1) 1.0 (3) χ2(1) = .46
 Family 2.2 (11) .5 (1) 3.4 (10) χ2(1) = 4.88*
 Others 3.9 (20) 3.3 (7) 4.4 (13) χ2(1) = .37

*p < .05, **p < .01, ***p < .001, treated as independent binary variables