| SD all-day SBP | Normal (Group 1) | Abnormal (Group 2) | χ2 | P-value | ||
| Gender | Male | No. | 20 | 46 | 0.648 | 0.421 |
| % | 52.6% | 60.5% | ||||
| Female | No. | 18 | 30 | |||
| % | 47.4% | 39.5% | ||||