Table 1.
Mean (SD) demographic and clinical characteristics
| AN (n = 64) | REC (n = 46) | ASD (n = 41) | TD (n = 67) | Test statistics | p-value | Effect size | |
|---|---|---|---|---|---|---|---|
| Age (years) | 21.53 (4.15) | 22.21 (3.47) | 20.56 (8.42) | 22.16 (3.60) | F(3,106.95) = 1.21 | 0.31 | 0.02 |
| IQ | 109.97 (9.97) | 110.91 (10.39) | 107.31 (10.89) | 111.46 (8.42) | F(3,208) = 1.60 | 0.19 | 0.02 |
| BMI† | 16.63 (2.60)a | 21.05 (3.11)b | 21.60 (5.27)b | 21.57 (1.70)b | X2(3) = 127.12 | < 0.001 | 0.58 |
| %on psychiatric medication | 50%a | 39%a | 30%a | 0%b | X2(3) = 43.80 | < 0.001 | 0.45 |
| Age at AN diagnosis | 16.80 (3.62) | 15.56 (2.52) | – | – | t(102.89) = 2.08 | 0.04 | 0.40 |
| EDE-Q† | 3.62 (2.60)a | 1.15 (1.71)b | – | 0.34 (0.83)c | X2(2) = 82.71 | < 0.001 | 0.47 |
| Anxiety (Z score) | 2.43 (1.42)a | 1.71 (1.71)ab | 1.40 (1.93)b | 0.00 (1.00)c | F(3,91.87) = 44.50 | < 0.001 | 0.31 |
| Depression (Z score) | 3.79 (2.74)a | 1.72 (2.01)b | 2.04 (2.15)b | 0.00 (1.00)c | F(3,88.90) = 44.36 | < 0.001 | 0.35 |
AN, anorexia nervosa; ASD, autism spectrum disorder; BMI, body mass index; EDE-Q, eating disorder examination questionnaire; IQ, intelligence quotient; REC, recovered anorexia nervosa; SD, standard deviation; TD, typically developing controls
Different superscripts indicate significant differences between groups, significant p-values (< .01) are highlighted in bold
†Median and interquartile range (IQR)