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. Author manuscript; available in PMC: 2025 Apr 1.
Published in final edited form as: Int J Eat Disord. 2023 Jul 28;57(4):799–808. doi: 10.1002/eat.24029

Table 2:

Weight, %mBMI, EDE-Q global scores, resumption of menses and rehospitalizations by diagnosis at study timepoints

Atypical AN
(N=48)
AN
(N=63)
Mean difference 95% CI p-value Effect size
Discharge weight (kg) 54.3 (7.7) 44.5 (5.3) −9.8, −12.4 to −7.2 <.001 −1.52
12 mo. weight (kg) 59.4 (8.2) 50.8 (7.1) −8.6, −11.7 to −5.6 <.001 −1.14
Weight gain over follow-up (kg) 4.7 (7.6) 6.1 (5.7) 1.4, −1.3 to 4.0 .15 .21
%mBMI gain over follow-up 5.8 (11.8) 9.2 (10.1) 3.4, −1.0 to 7.8 .13 .32
Weight suppression 12 mo. (%) 16.6 (16.9) 11.1 (12.7) −5.5, −11.7 to .7 .08 −.38
Average %mBMI* over time
 Discharge 98.3 (8.9) 82.3 (5.3) −16.1, −19.0 to −13.2 <.001 −2.26
 3 mo. 103.0 (9.1) 89.5 (9.4) −13.5, −17.3 to −9.8 <.001 −1.46
 6 mo. 104.5 (11.6) 90.7 (10.0) −13.8, −18.2 to −9.4 <.001 −1.29
 12 mo. 103.9 (10.5) 91.7 (10.9) −12.2, −16.6 to −7.9 <.001 −1.14
 Change in %mBMI over time .02 **
EDE-Q global score ***, mean (SD)
 Admission 3.80 (1.66)
[N=41]
3.06 (1.65)
[N=56]
−.74, −1.4 to −.1 .03 −.45
 3 mo. 2.0 (1.7)
[N=34]
2.6 (1.7)
[N=43]
.55, −.2 to 1.3 .16 .33
 6 mo. 1.7 (1.5)
[N=31]
2.1 (1.7)
[N=36]
.35, −.4 to 1.1 .38 .22
 12 mo. 1.9 (1.6)
[N=33]
2.7 (1.5)
[N=44]
.76, .1 to 1.5 .04 .49
Change in EDE-Q over time .41 **
Resumption of Menses
Proportion with resumption of menses 16/20 (80%) 20/26 (77%) .80 .07
Rehospitalizations
 Proportion rehospitalized over 12 mo. 14/48 (29.2%) 22/58 (37.9%) .41 .19
 Days spent rehospitalized 7.7 (16.0) 3.0 (6.7) 4.7, .1 to 9.3 .06 .37
*

%mBMI = percent median BMI

**

p-value from linear mixed effect models (LMM)

***

EDE-Q = Eating Disorder Examination Questionnaire

Estimate of effect size: Cohen’s d =.2 (small effect); d =.5 (moderate effect); d ≥.8 (large effect)