Table 4. Moderator analysis of studies on inhibitory control to disease-salient stimuli in BN patients.
Number of studies | Number of patients | Effect size | Heterogeneity | Small study effects | |||||
Hedges' g | CI95 | SE | p value | p value (Egger's test) | |||||
a) Food/eating | |||||||||
BN | 12 | 218 | −0.67 | −0.86, −0.47 | 0.10 | <0.001 | Q (11) = 13.4, p = 0.266 | I2 = 18.1% | 0.933 |
Tasks | |||||||||
Stroop | 11 | 200 | −0.67 | −0.88, −0.45 | 0.11 | <0.001 | Q (10) = 13.4, p = 0.201 | I2 = 25.5% | 0.938 |
No-go | 1 | 18 | −0.68 | −1.34, −0.02 | 0.34 | 0.042 | — | — | — |
b) Shape/weight | |||||||||
BN | 12 | 218 | −0.61 | −0.79, −0.44 | 0.09 | <0.001 | Q (11) = 9.1, p = 0.616 | I2 = 0 | 0.532 |
Tasks | |||||||||
Stroop | 11 | 200 | −0.65 | −0.84, −0.47 | 0.09 | <0.001 | Q (10) = 6.65, p = 0.758 | I2 = 0 | 0.628 |
No-go | 1 | 18 | −0.13 | −0.77, +0.51 | 0.33 | 0.699 | — | — | — |
CI95: 95% confidence interval, SE: standard error; BN: bulimia nervosa.