2.4. Statistical analysis

XL Xiangwen Li
XL Xinghui Li
QL Qiling Liu
NS Na Sun
BZ Bei Zhang
CS Chuandao Shi
RZ Rongqiang Zhang
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For every indicator, a meta-analysis was performed using RevMan 5.3. Pooled estimates were obtained using random-effects models if the I2 statistic of heterogeneity was ≥50%, or using fixed effects model when I2 < 50%. We subjected the results to meta-analysis and evaluated the Standard Mean Differences (SMD) and relative risk (RR) in changes for outcome measure indicators from before to after treatment. Publication bias was analyzed with a funnel plot and Begg's test. P < .05 was considered statistically significant.

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