Baseline characteristics
|
Age at first ED symptoms M (SD)
|
14.7 (1.9)
|
14.6 (1.9)
|
14.8 (1.8)
|
14.5 (1.9)
|
.007
|
1-2
|
.250
|
| | | | |
2–3
|
.007
|
| | | | |
1–3
|
.499
|
Age at treatment onset M (SD)
|
16.6 (1.8)
|
16.5 (1.9)
|
16.6 (1.8)
|
16.4 (1.8)
|
.071
|
1-2
|
.644
|
| | | | |
2–3
|
.058
|
| | | | |
1–3
|
.511
|
Referred to treatment by other treatment unit or school (%)
|
1374 (62.6)
|
300 (65.6)
|
771 (63.2)
|
303 (58.4)
|
.050
|
1-2
|
.363
|
| | | | |
2–3
|
.056
|
| | | | |
1–3
|
.020
|
Previous ED treatment (%)
|
667 (30.4)
|
199 (43.5)
|
355 (29.1)
|
113 (21.8)
|
<.001
|
1-2
|
<.001
|
| | | | |
2–3
|
.002
|
| | | | |
1–3
|
<.001
|
Social complications (%)
|
355 (16.2)
|
103 (22.6)
|
183 (15.0)
|
69 (13.3)
|
<.001
|
1-2
|
<.001
|
| | | | |
2–3
|
.352
|
| | | | |
1–3
|
<.001
|
Psychiatric complications (%)
|
362 (16.5)
|
104 (22.9)
|
189 (15.5)
|
69 (13.3)
|
<.001
|
1-2
|
<.001
|
| | | | |
2–3
|
.236
|
| | | | |
1–3
|
<.001
|
Somatic complications (%)
|
88 (4.0)
|
23 (5.1)
|
45 (3.7)
|
20 (3.9)
|
.440
|
1-2
|
.209
|
| | | | |
2–3
|
.871
|
| | | | |
1–3
|
.362
|
AN (%)
|
1240 (56.5)
|
310 (67.8)
|
683 (56.0)
|
247 (47.6)
|
<.001
|
1-2
|
<.001
|
| | | | |
2–3
|
.001
|
| | | | |
1–3
|
<.001
|
Low weight (%)
|
1231 (56.1)
|
281 (61.5)
|
697 (57.2)
|
253 (48.7)
|
<.001
|
1-2
|
.111
|
| | | | |
2–3
|
.001
|
| | | | |
1–3
|
<.001
|
Sick leave (%)
|
137 (6.2)
|
44 (9.6)
|
74 (6.1)
|
19 (3.7)
|
.001
|
1-2
|
.011
|
| | | | |
2–3
|
.041
|
| | | | |
1–3
|
<.001
|
Outcome variables
|
Remission (%)
|
1220 (55.6)
|
221 (48.4)
|
682 (55.9)
|
317 (61.1)
|
<.001
|
1-2
|
.006
|
| | | | |
2–3
|
.048
|
| | | | |
1–3
|
<.001
|
Low weight (%)
|
358 (16.3)
|
97 (21.3)
|
196 (16.1)
|
65 (12.5)
|
.001
|
1-2
|
.012
|
| | | | |
2–3
|
.057
|
| | | | |
1–3
|
<.001
|
Premature termination of treatment (%)
|
633 (28.8)
|
127 (27.8)
|
357 (29.3)
|
149 (28.7)
|
.832
|
1-2
|
.547
|
| | | | |
2–3
|
.808
|
| | | | |
1–3
|
.750
|
Treatment duration (months) M (SD)*
|
14.8 (11.8)
|
19.2 (15.8)
|
14.4 (10.8)
|
11.4 (7.7)
|
<.001
|
1-2
|
<.001
|
| | | | |
2–3
|
<.001
|
| | | | |
1–3
|
<.001
|
Sick leave (%)
|
72 (3.3)
|
22 (4.8)
|
44 (3.6)
|
6 (1.2)
|
.004
|
1-2
|
.248
|
| | | | |
2–3
|
.005
|
| | | | |
1–3
|
.001
|