Figure 1. Serious Psychological Distress Among a National Cohort of 1337 US Adults in April and July 2020.

Data are from waves 1 and 2 of the Johns Hopkins Civic Life and Public Health Survey. The 2 waves were fielded in a longitudinal cohort of 1337 US adults aged 18 years or older. Wave 1 was fielded from April 7 to 13, 2020. Wave 2 was fielded from July 7 to 22, 2020. The McNemar χ² test was used to test for statistically significant differences in proportion of respondents reporting serious psychological distress in July vs April 2020. No differences were statistically significant at the P < .05 level. Psychological distress was measured using the Kessler 6 scale, with scores of 13 or older indicating serious psychological distress. Race/ethnicity was collected as part of the demographic profile in April 2020. The options were defined by the study investigators and participants classified their own race/ethnicity. The survey measured 3 race categories that are not reported due to small sample sizes: other race, non-Hispanic (n = 13); 2 or more races, non-Hispanic (n = 25); and Asian, non-Hispanic (n = 34). The error bars indicate 95% CIs.