Fig. 2: Test of parallel trends assumption, showing the estimated mean Plasmodium falciparum (Pf) prevalence in low travel (gold) and high travel (teal) areas from 2015 to 2020. | Nature Communications

Fig. 2: Test of parallel trends assumption, showing the estimated mean Plasmodium falciparum (Pf) prevalence in low travel (gold) and high travel (teal) areas from 2015 to 2020.

From: Impact of six-month COVID-19 travel moratorium on Plasmodium falciparum prevalence on Bioko Island, Equatorial Guinea

Fig. 2

The 95% confidence intervals (CI) from the grouped mean estimates are shown at each point estimate. The dashed line represents predicted prevalence in 2020 in a counterfactual scenario with no travel moratorium. Prevalence estimates from each enumeration area (EA) in each year are presented as points, and their size is proportional to the number of individuals tested within the EA. The total number of individuals included in the calculation for each year is as follows: 2015: high (n = 5889), low (n = 3560); 2016: high (n = 5097), low(n = 2799); 2017: high (n = 5050), low(n = 2642); 2018: high (n = 4861), low (n = 2647); 2019: high (n = 4532), low(n = 2354); 2020: high (n = 4346), low (n = 1957).

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