Table 2. Moderator analysis of studies on general inhibitory control in bulimic-type eating disorders.
| Number of studies | Number of patients | Effect size | Heterogeneity | Small study effects | |||||
| Hedges' g | CI95 | SE | p value | p value (Egger's test) | |||||
| subtype of eating disorders | |||||||||
| BN | 19 | 439 | −0.26 | −0.43, −0.09 | 0.09 | 0.003 | Q (18) = 31.4, p = 0.026 | I2 = 42.7% | 0.878 |
| AN-b | 3 | 42 | −0.91 | −1.67, −0.14 | 0.39 | 0.020 | Q (2) = 9.38, p = 0.009 | I2 = 78.7% | 0.375 |
| BED | 2 | 82 | −0.16 | −0.60, +0.28 | 0.22 | 0.485 | Q (1) = 2.0, p = 0.156 | I2 = 50.3% | — |
| tasks | |||||||||
| Stroop | 12 | 282 | −0.25 | −0.47, −0.02 | 0.12 | 0.035 | Q (11) = 22.0, p = 0.025 | I2 = 49.9% | 0.957 |
| SST | 6 | 124 | −0.46 | −0.90, −0.03 | 0.22 | 0.036 | Q (5) = 18.6, p = 0.002 | I2 = 73.2% | 0.009 |
| No-go | 5 | 165 | −0.39 | −0.69,−0.09 | 0.15 | 0.010 | Q (4) = 7.72, p = 0.102 | I2 = 48.2% | 0.905 |
| MFFT | 2 | 27 | −0.35 | −1.34, +0.64 | 0.50 | 0.488 | Q (1) = 3.86, p = 0.05 | I2 = 74.1% | — |
| HSCT | 1 | 13 | −1.09 | −1.89, −0.29 | 0.41 | 0.008 | — | — | — |
| SSIT | 1 | 18 | −0.14 | −0.78, +0.50 | 0.33 | 0.662 | — | — | — |
| ELF | 1 | 13 | −1.02 | −1.81, −0.23 | 0.41 | 0.012 | — | — | — |
CI95: 95% confidence interval, SE: standard error; BN: bulimia nervosa; BED: binge eating disorder; AN-b: anorexia nervosa from the binge/purge subtype; SST: Stop Signal Task; MFFT: Matching Familiar Figure Test; HSCT: Hayling Sentence Completion Test; SSIT: Simon Spatial Incompatibility Task; ELF: Excluded Letter Fluency test.