Table 2.
Multivariate logistic regression models with two-way interaction terms to determine the effect of sex and risk factors for orthostatic hypotension
| Variables | OR (95% CI) | P value |
|---|---|---|
| Model 1 | ||
| SBP ≥ 140 | 0.87 (0.46–1.64) | 0.678 |
| SBP ≥ 140 × sex | 4.53 (1.94–10.58) | <0.0001 |
| Model 2 | ||
| DBP ≥ 90 | 0.72 (0.44–1.18) | 0.201 |
| DBP ≥ 90 × sex | 1.22 (0.79–1.89) | 0.367 |
| Model 3 | ||
| Pulse pressure | 0.99 (0.98–1.00) | 0.647 |
| Pulse pressure × sex | 0.99 (0.99–1.00) | 0.745 |
| Model 4 | ||
| Antihypertensive treatment | 0.97 (0.60 – 1.57) | 0.974 |
| Antihypertensive treatment × sex | 1.13 (0.75 – 1.70) | 0.546 |
| Model 5 | ||
| BMI | 0.93 (0.90–0.97) | <0.0001 |
| BMI × sex | 0.99 (0.98–1.01) | 0.779 |
| Model 6 | ||
| Diabetes mellitus | 1.52 (0.74–2.47) | 0.090 |
| Diabetes mellitus × sex | 1.12 (0.74–1.67) | 0.579 |
| Model 7 | ||
| Age | 0.99 (0.97–1.00) | 0.570 |
| Age × sex | 0.99 (0.99–1.01) | 0.360 |
Each model was adjusted by hypertension, antihypertensive treatment, pulse pressure, BMI, diabetes mellitus and age. Abbreviations: BMI, body mass index; CI, confidence interval; DBP, diastolic blood pressure; OR, odds ratio; SBP, systolic blood pressure.