Estimate of undergraduate university student alcohol use in China: a systematic review and meta-analysis

Table 3 Moderators associated with the heterogeneity of past-30-day drinking rate estimates in surveys of Chinese university students, 2006–2015

Outcome variables	Moderators	Bivariate β	SE	R²%	Multiple Meta-regression β	SE	R²%
Logit drinking rate of males
	Definition (yes = 1, no = 0)	−.8216^**	.3060	20	−.7886^**	.297	56
	Questionnaire (YRBS = 0, Investigator-developed = 1)	.9754^**	.3492	21	.8795^**	.341
	Region (east to central)	1.0885^**	.4817	21	.711^*	.3762
	Region (east to west)	.7360^*	.4021		.6184^*	.317
Logit drinking rate of females
	Definition (yes = 1, no = 0)	−.5670^*	.2595	14	−.6633^**	.2703	47
	Questionnaire (YRBS = 0, Investigator-developed = 1)	.5892^*	.3018	12	.3919	.2975
	Region (east to central)	.8886^**	.3744	22	.5847	.3302
	Region (east to west)	.6017^*	.3121		.5242	.2747

^** p < .01,^* p < .05 for bivariate regression. Bonferroni correction applied on the significance level of .1 for multiple meta-regression analysis: the significance level = .1/3 = .033 for 3 moderators

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