Table 3.
Linear regression coefficients of standard deviation and coefficient of variation from different levels of baseline SBP
| SBP at baseline (mmHg) | SSD
|
SCV
|
||||
|---|---|---|---|---|---|---|
| β | 95% CI | P-value | β | 95% CI | P-value | |
| <120 | 0.734 | 0.607–0.861 | <0.001 | 0.510 | 0.405–0.615 | <0.001 |
| 120–139 | Reference | Reference | ||||
| 140–159 | 1.427 | 1.283–1.572 | <0.001 | 1.234 | 1.142–1.327 | <0.001 |
| ≥160 | 5.468 | 5.270–5.666 | <0.001 | 2.487 | 2.343–2.631 | <0.001 |
Notes: Linear regression model adjusted for age, sex, body mass index, fasting blood glucose, total cholesterol, low-density lipoprotein cholesterol, triglycerides, high-sensitivity C-reactive protein, education level, smoking status, drinking status, physical activity, and antihypertensive drugs at baseline and follow-up.
Abbreviations: CI, confidence interval; SBP, systolic blood pressure; SCV, coefficient of variation of SBP; SSD, standard deviation of SBP.