Table 2.

Meta-regression performed for prevalence of poor sleep

	Number of studies	Coefficient	Standard error	P value	Residual heterogeneity (I2%)
Crohn’s disease	31	0.0147	0.10	.88	96.8
Age	36	0.017	0.006	.005	95.6
Female gender	33	0.002	0.002	.28	96.5
IBD disease duration	18	0.005	0.007	.54	97.6
Objective IBD activity	8	0.64	0.17	.001	30.5
Subjective IBD activity	25	0.013	0.21	.95	98.0
Depression	15	0.13	0.17	.43	95.6

IBD, inflammatory bowel disease.