Table 6.
Mediational analyses linking race/ethnicity to diary ratings of sleep quality in black, Chinese, and Japanese, compared with white postmenopausal women
| Race to mediator (path a) | Mediator to quality rating (path b) | Total effect (path c) | Direct effect (path c′) | Indirect effect (95% CI) | |
|---|---|---|---|---|---|
| Black/white | |||||
| Physical activity | −0.319 (0.077)**** | 0.053 (0.021)** | −0.090 (0.045)** | −0.073 (0.045) | −0.017 (−0.034, −0.004) |
| Proportion vasomotor symptoms | 0.049 (0.018)*** | −0.558 (0.084)**** | −0.094 (0.045)** | −0.066 (0.044) | −0.027 (−0.052, −0.007) |
| No. stressors | 0.152 (0.063)** | −0.074 (0.025)*** | −0.094 (0.045)** | −0.083 (0.045)* | −0.011 (−0.026, −0.001) |
| Financial hardship | 0.234 (0.035)**** | −0.140 (0.045)*** | −0.096 (0.045)** | −0.063 (0.046) | −0.033 (−0.059, −0.009) |
| Chinese/white | |||||
| Positive affect | −4.974 (0.742)**** | 0.018 (0.003)**** | −0.190 (0.055)*** | −0.099 (0.055)* | −0.091 (−0.137, −0.052) |
| Japanese/white | |||||
| Depressive symptoms | 0.338 (0.140)** | −0.096 (0.016)**** | −0.192 (0.058)*** | −0.159 (0.057)*** | −0.033 (−0.065, −0.005) |
| Positive affect | −2.204 (0.741)*** | 0.020 (0.003)**** | −0.192 (0.058)*** | −0.148 (0.056)*** | −0.043 (−0.080, −0.013) |
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.