Figure 2. Meta-analysis of Interrupted Time Series Analysis by Health Care Site and Country.

The proportion difference between the prepandemic and pandemic periods for each health care site or country was determined by interrupted time series analyses. The pooled effect was estimated using a random-effects meta-analysis. Squares represent mean proportion differences, with horizontal lines indicating 95% CIs. The size of the squares is proportional to the relative sample size of each health care site among all sites. Diamonds represent the pooled mean proportion differences among all health care sites, with outer points of the diamonds representing the 95% CIs of the pooled means. The vertical dashed lines represent projections of the pooled mean proportion differences.