Table 2: Comparison of HF, LF/HF, HR among Pregnant and non-Pregnant.
unpaired t test.
| Pregnant (n=11) | Non-pregnant (n=15) | p-value |
| Mean | SD | Mean | SD |
| Sleeping HF after day shift | 724.8 | 262.6 | 1349.3 | 1046.3 | 0.041 |
| Sleeping LF/HF after day shift | 1.5 | 1.0 | 16.5 | 25.4 | 0.039 |
| Sleeping HR after day shift | 72.9 | 9.4 | 63.9 | 9.1 | 0.022 |
| HF during night shift | 495.1 | 190.3 | 942.9 | 845.1 | 0.065 |
| LF/HF during night shift | 2.8 | 2.8 | 16.1 | 18.9 | 0.017 |
| HR during night shift | 92.6 | 13.2 | 87.6 | 6.9 | 0.220 |
| Night shift nap HF | 503.2 | 197.9 | 806.1 | 751.9 | 0.208 |
| Night shift nap LF/HF | 2.0 | 2.6 | 56.5 | 140.3 | 0.169 |
| Night shift nap HR | 82.7 | 15.9 | 71.7 | 7.7 | 0.053 |