Table 1.
Analysis of Covariance of Sleep Duration as a Function of Gender, Race/Ethnicity, with Age, Household Income, and Employment Status as Covariates
| Unadjusted | Fully Adjusted* | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
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| Source | df | SS | MS | F | p | η2 | df | SS | MS | F | p | η2 |
| Age | 1 | 23047.24 | 23047.24 | 4.43 | .036 | .016 | ||||||
| Household Income | 1 | 8985.02 | 8985.02 | 1.73 | .190 | .006 | ||||||
| Employment Status | 1 | 33.77 | 33.77 | .01 | .936 | <.001 | ||||||
| Gender | 1 | 68471.43 | 68471.43 | 13.03 | <.001 | .046 | 1 | 49920.88 | 49920.88 | 9.59 | .002 | .034 |
| Race/Ethnicity | 3 | 50664.98 | 16888.33 | 3.21 | .023 | .034 | 3 | 48145.70 | 16048.57 | 3.08 | .028 | .033 |
| Gender X Race/Ethnicity | 3 | 41068.69 | 13689.56 | 2.61 | .052 | .028 | 3 | 47371.70 | 15790.57 | 3.03 | .030 | .033 |
| Error | 272 | 1429580.31 | 5255.81 | 269 | 1400459.53 | 5206.17 | ||||||
| Total | 280 | 45957111.50 | 280 | 45957111.50 | ||||||||
Note:
*
Adjusted for Age, Employment Status (Full-Time or Part-Time/Unemployed), and Household Income (<$75k or >$75k)