Figure 2: Multivariate adjusted RRs and 95% CIs of the risk of PTB by leisure-time PA levels during pregnancy among 17 observational studies. | Scientific Reports

Figure 2: Multivariate adjusted RRs and 95% CIs of the risk of PTB by leisure-time PA levels during pregnancy among 17 observational studies.

From: Non-occupational physical activity during pregnancy and the risk of preterm birth: a meta-analysis of observational and interventional studies

Figure 2

The pooled estimates (diamond data markers) were obtained using a random-effects model. The dots indicate the RRs for the risk of PTB comparing the highest with the lowest category of leisure-time PA during pregnancy. The size of the shaded square is proportional to the percentage weight of each study. The horizontal lines represent 95% CIs. CI: confidence interval; RR: relative risk.

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