Forest plot of mean difference in diastolic blood pressure (expressed as mm Hg) between the digital health intervention and the usual care croup, and subgroup analysis by mode of delivery of the intervention (SMS, smartphone application, and website). The size of the squares indicates the weight of the evidence from each of the studies. Studies with CI (horizontal line) crossing zero (vertical line) are inconclusive. Powerful studies (those with more participants) have narrower CIs. The diamonds represent the summary effect sizes in each of the subgroups and in the overall sample, with the width of the diamond indicating the 95% CI. A statistically significant greater reduction in diastolic blood pressure is seen in the digital health intervention group, compared with the control group in the overall sample and when smartphone applications were the delivery medium, but not when SMS or websites were used to deliver the intervention. The data present substantial heterogeneity.
00002-x%2Ffig3_a.webp&w=1920&q=75 "Learn How to Make Forest Plot for Your Research Paper")