Figure 3.
Period prevalence (with 95% CI) of pre-pregnancy weight >91 kg (Weight > 91 kg), gestational diabetes (GD), smoking and substance use during pregnancy across socioeconomic status (SES) quintiles in urban and rural settings. Footnote: the linear gradient for the prevalence by health outcome across the SES quintiles was tested using regression analysis. The p value for the linear gradient was incorporated into the graph when it was statistically significant (p<0.05). Note that the y-axis scaling (%) differs among the different panels.