Table 2.

Sensitivity analysis of the meta‐analysis results of cross‐sectional study

Study excluded	Random‐effects models		Heterogeneity
	OR	95% CI	I 2 (%)	p Value
Clinical trial
None	0.536	0.338 to 0.850	88.5	<0.001
He et al. (2015)	0.435	0.344 to 0.550	0.00	0.829
Jin et al. (2015)	0.589	0.340 to 1.018	92.9	<0.001
Wu et al. (2015)	0.594	0.323 to 1.091	80.0	0.025
Cohort Study
None	0.574	0.395 to 0.834	70.9	0.032
French et al. (2013) – younger cohort	0.693	0.548 to 0.877	0.00	0.933
French et al. (2013) – older cohort	0.514	0.288 to 0.917	80.2	0.025
Guggenheim et al. (2012) –	0.521	0.286 to 0.947	82.5	0.017
Cross‐sectional Study
None	0.964	0.945 to 0.982	93.2	<0.001
Chua et al. (2015)	0.963	0.944 to 0.982	93.7	<0.001
Zhou et al. (2015)	0.963	0.943 to 0.983	93.7	<0.001
Pan et al. (2015)	0.960	0.939 to 0.982	93.7	<0.001
Guo et al. (2015)	0.963	0.944 to 0.983	93.7	<0.001
Lee et al. (2015)	0.960	0.937 to 0.983	93.2	<0.001
Zhou et al. (2014)	0.961	0.942 to 0.981	93.7	<0.001
Guo et al. (2013)	0.984	0.979 to 0.991	39.8	0.075
Low et al. (2010)	0.960	0.940 to 0.981	93.7	<0.001
Deng et al. (2010)	0.965	0.947 to 0.984	93.7	<0.001
Dirani et al. (2009)	0.961	0.938 to 0.983	93.7	<0.001
Lu et al. (2009)	0.963	0.945 to 0.982	93.7	<0.001
Ip et al. (2008)	0.963	0.944 to 0.983	93.7	<0.001
Mutti et al. (2002)	0.966	0.948 to 0.985	93.6	<0.001