Table 2.
Racial differences in the impact of the COVID-19 pandemic adjusted for treatment condition, sex, and household income
| White (n = 148) | Black (n = 48) | Statistical test values | |
|---|---|---|---|
| ISI | 11.2 ± 6.6 | 14.8 ± 7.6 | t(194) = 3.2, p < .001, d = 0.51 |
| CIS | 11.0 ± 4.5 | 14.2 ± 5.3 | t(202) = 4.1, p < .001, d = 0.65 |
| IESCOVID-19 | 24.5 ± 12.8 | 33.6 ± 17.0 | t(202) = 3.3, p < .001, d = 0.60 |
As reference, the range of CIS scores across five samples of primary caregivers during the pandemic was 8–12 (https://psyarxiv.com/kz4pg/).
ISI, Insomnia Severity Index; CIS, Coronavirus Impact Scale; IESCOVID-19, Impact of Events Scale specific to the COIVD-19 pandemic; d, Cohen’s d.