Table 2.
Tukey's Post‐Hoc Honest Significant Differences (HSD) Between Peak and Values Observed at Other Times of the Day
| Time Point of Highest Value | Other Time Points | Mean Difference | Significance | |
|---|---|---|---|---|
| CD34+, cells/mL | 8 pm | 8 am | 551.49* | 0.04 |
| 12 pm | 313.07 | 0.56 | ||
| 4 pm | 414.08 | 0.23 | ||
| 12 am | 362.91 | 0.38 | ||
| 4 am | 506.53 | 0.07 | ||
| 8 am | 522.3 | 0.06 | ||
| CD34+CD133+, cells/mL | 8 pm | 8 am | 412.28* | <0.001 |
| 12 pm | 300.89* | 0.01 | ||
| 4 pm | 163.2 | 0.48 | ||
| 12 am | 161.53 | 0.49 | ||
| 4 am | 347.34* | <0.001 | ||
| 8 am | 315.56* | 0.01 | ||
| CFU, Δ% | 12 am | 8 am | 68.19* | 0.005 |
| 12 pm | 44.34 | 0.16 | ||
| 4 pm | 58.31* | 0.02 | ||
| 8 pm | 64.85* | 0.008 | ||
| 8 am | 90.93* | <0.001 | ||
| FMD, Δ% | 12 am | 8 am | 40.21* | 0.014 |
| 12 pm | 37.65* | 0.02 | ||
| 4 pm | 24.57 | 0.31 | ||
| 8 pm | 42.04* | 0.01 | ||
| 8 am | 37.69* | 0.017 | ||
| AIX, Δ% | 8 am | 12 pm | 45.80* | 0.04 |
| 4 pm | 57.84* | 0.003 | ||
| 8 pm | 9.57 | 0.99 | ||
| 12 am | 65.28* | <0.001 | ||
| 8 am | 12.03 | 0.97 |
Δ %=percent deviation from the individual mean. AIX indicates augmentation index; CFU, colony formation units; FMD, flow‐mediated vasodilation.
*
Denotes statistically significant difference between the time point of highest value and other individual time points, based on the 2‐tailed P values (significance) for the studentized range statistic.