Table 4.
Odds ratios and 95% confidence intervals for SBP according to different CFRs.
| Variable | Crude | Model 1 | Model 2 | Model 3 | |
|---|---|---|---|---|---|
| OR (95% CI) | OR (95% CI) | OR (95% CI) | OR (95% CI) | ||
| Dietary CFR | 1.029 (1.015, 1.044) *** | 1.027 (1.011, 1.043) ** | 1.037 (1.020, 1.055) *** | 1.037 (1.019, 1.055) *** | |
| Group by quartile of CFR | Q1 | 1.00 (Ref.) | 1.00 (Ref.) | 1.00 (Ref.) | 1.00 (Ref.) |
| Q2 | 1.263 (0.730, 2.182) | 1.208 (0.686, 2.128) | 1.212 (0.662, 2.216) | 1.118 (0.602, 2.078) | |
| Q3 | 1.170 (0.675, 2.029) | 1.119 (0.620, 2.021) | 1.323 (0.706, 2.480) | 1.224 (0.645, 2.324) | |
| Q4 | 3.365 (1.952, 5.800) *** | 3.200 (1.752, 5.847) *** | 4.522 (2.356, 8.679) *** | 4.374 (2.236, 8.559) *** | |
| Carbohydrate | Alone | 0.998 (0.995, 1.001) | 0.999 (0.996, 1.002) | 1.001 (0.998, 1.004) | 1.001 (0.998, 1.005) |
| Fiber | Alone | 0.879 (0.835, 0.924) *** | 0.887 (0.839, 0.939) *** | 0.873 (0.822, 0.927) *** | 0.868 (0.814, 0.927) *** |
| Covariates | Cholesterol (mg/day) | - | 1.001 (1.000, 1.002) ** | - | - |
| Calcium (mg/day) |
- | 0.999 (0.999, 1.000) * | 0.999 (0.999, 1.000) ** | 0.999 (0.999, 1.000) * | |
| Duration of HTN (year) | - | - | 0.962 (0.932, 0.992) * | 0.967 (0.936, 0.999) * | |
| Taking drugs | - | - | 0.380 (0.219, 0.660) ** | 0.384 (0.221, 0.669) ** | |
| Depression | - | - | 1.969 (1.105, 3.510) * | 1.861 (1.040, 3.328) * | |
Notes: SBP, systolic blood pressure; CFR, dietary carbohydrate to fiber ratio; ***: p < 0.001; **: p < 0.01; *: p < 0.05. Model 1, Adjusted for cholesterol, calcium, sodium. Model 2, Adjusted for variables in model 1 + body mass index (BMI), constipation, duration of hypertension (HTN), taking antihypertensive drugs, depression, anxiety. Model 3, Adjusted for variables in model 1 + model 2 + age, marital status.