Table 8.
Sensitivity Analyses of Association Between Drinking Water Salinity Categories and Participants BP When Analyses was Restricted Among Participants With No Chronic Disease and Whose Urinary Protein was <300 mg/day
| Outcomes | Drinking Water Electrical Conductivity (EC) Categories | |||
|---|---|---|---|---|
| Fresh Water (EC: 0 to <0.7 mS/cm) (β, 95% CI) | Mild‐Salinity Water (EC: 0.7 to <2 mS/cm) (β, 95% CI) | Moderate‐Salinity Water (EC: 2.0–10 mS/cm) (β, 95% CI) | ||
| No chronic disease and urinary protein <300 mg/d | Systolic BP | |||
| Model 1a | Reference | −1.44 (−2.81–−0.08) | −1.59 (−3.23–0.05) | |
| Model 2b | Reference | −1.39 (−2.86–0.08) | −1.49 (−3.17–0.18) | |
| Model 3c | Reference | −1.32 (−2.82–0.17) | −1.40 (−3.14–0.34) | |
| Diastolic BP | ||||
| Model 1a | Reference | −1.45 (−2.20–−0.70) | −1.37 (−2.29–−0.45) | |
| Model 2b | Reference | −1.46 (−2.28–−0.64) | −1.33 (−2.27–−0.40) | |
| Model 3c | Reference | −1.40 (−2.25–−0.55) | −1.29 (−2.24–−0.33) | |
| Non‐hypertensive, non‐diabetic, no chronic kidney disease, and urinary protein <300 mg/d | Systolic BP | |||
| Model 1a | Reference | −1.35 (−2.51–−0.20) | −1.63 (−3.24–−0.02) | |
| Model 2b | Reference | −1.28 (−2.57–−0.00) | −1.54 (−3.24–0.16) | |
| Model 3c | Reference | −1.21 (−2.51–0.09) | −1.44 (−3.19–0.31) | |
| Diastolic BP | ||||
| Model 1a | Reference | −1.33 (−2.07–−0.60) | −1.29 (−2.32–−0.25) | |
| Model 2b | Reference | −1.31 (−2.09–−0.55) | −1.26 (−2.31–−0.21) | |
| Model 3c | Reference | −1.26 (−2.07–−0.46) | −1.20 (−2.282–−0.12) | |
β refers to mean difference from the reference group. BP indicates blood pressure.
a
Unadjusted model.
b
Adjusted for age, sex, and body mass index categories.
c
Additionally adjusted for physical activities and smoking status, household wealth, alcohol consumption, sleep hours, religion, and consumption of additional table salt with food.