Total | Mid-pregnancy | Late pregnancy | |
---|---|---|---|
Component | Corrected item-total correlationa | Cronbach’s alpha if item is deletedb | Cronbach’s alpha if item is deletedb |
Subjective sleep quality | .663** | 0.477 | 0.561 |
Sleep latency | .702** | 0.472 | 0.568 |
Sleep duration | .662** | 0.477 | 0.580 |
Sleep efficiency | .642** | 0.501 | 0.577 |
Sleep disturbance | .519** | 0.569 | 0.597 |
Daytime dysfunction | .365** | 0.600 | 0.717 |
Global scorec | 0.565 | 0.649 |