Table 2.
Baseline characteristics of randomized participants in the Salt Substitute in India Study d
|
Group 1 (n = 252) |
Group 2 (n = 250) |
Total (n = 502) |
|
|---|---|---|---|
| Age, years, mean (SD) | 61.5 (11.1) | 61.7 (12.9) | 61.6 (12.0) |
| Female, no. (%) | 147 (58.3) | 148 (59.2) | 295 (58.8) |
| Education, no. (%) | |||
| Primary school or lower | 220 (87.3) | 217 (86.8) | 437 (87.1) |
| High school a | 29 (11.5) | 28 (11.2) | 57 (11.4) |
| College | 2 (0.8) | 3 (1.2) | 5 (1.0) |
| University or higher | 1 (0.4) | 2 (0.8) | 3 (0.6) |
| Current Smoker, no. (%) | 16 (6.3) | 14 (5.6) | 30 (6.0) |
| BMI, kg/m2, mean (SD) | 23.1 (4.7) | 23.6 (4.2) | 23.4 (4.5) |
| SBP, mm Hg, mean (SD) | 133.9 (20.0) | 133.2 (22.5) | 133.5 (21.2) |
| DBP, mm Hg, mean (SD) | 84.1 (11.5) | 83.1 (12.9) | 83.6 (12.2) |
| History of CVD, no. (%) | 3 (1.2) | 4 (1.6) | 7 (1.4) |
| History of diabetes, no. (%) | 59 (23.4) | 51 (20.5) | 110 (22.0) |
| 24‐hour urine electrolytes concentration, mean (SD) | |||
| Sodium concentration, mg/L | 2818.0 (1120.1) | 2831.80 (1213.4) | 2824.82 (1165.8) |
| Potassium concentration, mg/L | 612.7 (311.0) | 657.5 (355.3) | 634.8 (334.0) |
| Salt intake, g per day, mean (SD) b , c | 10.62 (5.19) | 10.18 (4.82) | 10.40 (5.00) |
| Potassium intake, g per day, mean (SD) b | 1.57 (0.85) | 1.63 (1.02) | 1.60 (0.94) |
Descriptive data for participants were generated by an independent biostatistician. Both the statistician and the investigators remain blinded to participant treatment assignment.
Abbreviations: BMI, body mass index; CVD, cardiovascular disease; DBP, diastolic blood pressure; SBP, systolic blood pressure; SD, standard deviation.
High school includes junior high school, senior high school and technical secondary school.
Total numbers of eligible urine samples are 460, including 233 in group 1 and 227 in group 2.
Inflation by 10% applies to salt intake in grams per day.
None of the between‐group differences were significant.