Table 4.
Linear mixed-effects models examining the impact of systolic blood pressure categories on the longitudinal change of PWV
| Variables | Men (N=318)
|
Women (N=373)
|
||
|---|---|---|---|---|
| B | P | B | P | |
|
|
|
|||
| Systolic BP categories | ||||
| SBP Category 1 (< 120 mmHg) | 0 | 0 | 0 | 0 |
| SBP Category 2 (120–139 mmHg) | 0.08 | 0.6356* | 0.40 | 0.0082 |
| SBP Category 3 (≥ 140 mmHg) | 0.39 | 0.0454 | 0.53 | 0.0071 |
| Time × SBP Category 2† | 0.48 | 0.0105 | 0.36 | 0.0430 |
| Time × SBP Category 3† | −0.58 | 0.3805 | 0.44 | 0.0493 |
| First-age × Time × SBP Category 3† | 0.23 | 0.0455 | - | - |
Models are adjusted for terms in Table 3 with p <0.05. SBP: Systolic arterial pressure. B. Unstandardized regression coefficients.
*
P <0.05 for the main term before inclusion of interaction terms, correlation coefficients for the main terms can’t be interpreted separately from those for the interaction terms.
†
Coefficients for Time and First-age are calculated for 10-year increments. Cor (observed, predicted)was 0.85 and 0.83 in men and women, respectively