Table 5.
Odds ratios and 95% confidence intervals for DBP 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 | 1.011 (0.998, 1.024) | 1.016 (1.002, 1.031) * | 1.027 (1.012, 1.043) ** | 1.033 (1.015, 1.051) *** | |
| Group by quartile of CFR | Q2 | 1.00 (Ref.) | 1.00 (Ref.) | 1.00 (Ref.) | 1.00 (Ref.) |
| Q1 | 1.164 (0.678, 1.997) | 1.133 (0.655, 1.960) | 1.246 (0.695, 2.232) | 1.213 (0.644, 2.283) | |
| Q3 | 1.253 (0.732, 2.145) | 1.466 (0.843, 2.550) | 1.962 (1.072, 3.591) * | 1.964 (1.016, 3.795) * | |
| Q4 | 1.634 (0.958, 2.787) | 2.070 (1.179, 3.635) * | 3.179 (1.693, 5.968) *** | 4.291 (2.132, 8.637) *** | |
| Carbohydrate | Alone | 0.999 (0.997, 1.002) | 0.999 (0.996, 1.002) | 1.001 (0.998, 1.005) | 1.004 (1.000, 1.007) |
| Fiber | Alone | 0.966 (0.925, 1.008) | 0.933 (0.888, 0.980) ** | 0.923 (0.876, 0.973) ** | 0.920 (0.869, 0.974) ** |
| Covariates | Duration of HTN (year) | - | - | 0.961 (0.931, 0.991) * | - |
| Taking drugs | - | - | 0.408 (0.243, 0.686) ** | 0.493 (0.281, 0.868) * | |
| Depression | - | - | 2.547 (1.447, 4.484) ** | 2.292 (1.252, 4.194) ** | |
| Age | - | - | - | 0.964 (0.942, 0.986) ** | |
| Education degree | - | - | - | 0.561 (0.335, 0.939) * | |
| Retired | - | - | - | 0.528 (0.297, 0.939) * | |
| Alcohol drinking | - | - | - | 2.225 (1.332, 3.716) ** | |
Notes: DBP, diastolic blood pressure; CFR, dietary carbohydrate to fiber ratio; ***: p < 0.001; **: p < 0.01; *: p < 0.05. Model 1, Adjusted for protein, cholesterol. Model 2, Adjusted for variables in model 1 + body mass index (BMI), duration of hypertension (HTN), taking antihypertensive drugs, depression, anxiety. Model 3, Adjusted for variables in model 1 + model 2 + age, sex, education degree, occupational status, smoking status, alcohol drinking.