Table 4. Results of multiple regression analysis for factors associated with EPDS on Day 5.
| Independent variables | Partial regression coefficient (B) | Standardized regression coefficient (β) | t-ratio | P | 95% CI for B | R2 | |
|---|---|---|---|---|---|---|---|
| Lower | Upper | ||||||
| Constant | 0.524 | 0.203 | 0.841 | –4.761 | 5.808 | 0.511 | |
| Sleep frequency on Day 3 | –0.963 | –0.536 | –3.043 | 0.005 | –1.61 | –0.316 | |
| Mean total breastfeeding time | 0.011 | 0.383 | 2.844 | 0.008 | 0.003 | 0.019 | |
| PFS total score on Day 5 | 0.072 | 0.347 | 2.594 | 0.015 | 0.015 | 0.129 | |
| Total sleep time on Day 3 | 0.005 | 0.148 | 0.824 | 0.417 | –0.007 | 0.016 | |
EPDS: Edinburgh Postnatal Depression Scale; CI: Confidence Interval; PFS: Postpartum Fatigue Scale.