| Table 2. Results of studies that correlated poor sleep, defined as Pittsburgh Sleep Quality Index (PSQI) >5, with clinical pregnancy rates in women undergoing IVF. | |||||
| Study | Good Sleep | Poor Sleep | Pregnancy Rate Reduction (95% CI) | ||
|---|---|---|---|---|---|
| n | Clinical Pregnancy Rate | n | Clinical Pregnancy Rate | ||
| Liu et al., 2023 | 2284 | 69.3% | 899 | 65.1% | 4% (1 to 8%) |
| Philipsen et al., 2022 | 11 | 72.7% | 142 | 50.7% | 22% (-8 to 41%) |
| Reschini et al., 2022 | 183 | 35.5% | 80 | 20.0% | 15% (4 to 26%) |
CI: confidence interval.