Table 4.
Mediational analyses linking race/ethnicity to sleep duration in black, Hispanic, and Japanese, compared with white postmenopausal women
| Race to mediator (path a) | Mediator to duration (path b) | Total effect (path c) | Direct effect (path c′) | Indirect effect (95% CI) | |
|---|---|---|---|---|---|
| Black/white | |||||
| Financial hardship | 0.234 (0.035)**** | −0.133 (0.068)* | −0.504 (0.069)**** | −0.473 (0.070)**** | −0.031 (−0.068, 0.005) |
| Hispanic/white | |||||
| Financial hardship | 0.593 (0.070)**** | −0.390 (0.087)**** | −0.431 (0.148)*** | −0.200 (0.154) | −0.231 (−0.382, −0.103) |
| Increasing number of stressors | 0.031 (0.010)*** | −1.277 (0.599)** | −0.461 (0.144)*** | −0.422 (0.145)*** | −0.039 (−0.086, −0.002) |
| Japanese/white | |||||
| Increasing number of stressors | 0.022 (0.006)**** | −1.141 (0.572)** | −0.653 (0.089)**** | −0.627 (0.089)**** | −0.025 (−0.055, −0.001) |
Unless noted, mediators are from the same visit as the sleep protocol; increases refer to the slope of the mediator from baseline to sleep study.
*p < 0.10, **p < 0.05, ***p < 0.01, ****p < 0.001.