Table 3 Effect of sodium reduction strategy on dietary sodium, potassium and sodium to potassium ratio and knowledge and behaviors by different educational levels
Education | 0 yrs | 1–6 yrs | 7–9 yrs | >9 yrs | |
|---|---|---|---|---|---|
Intervention vs. control | Intervention vs. control | Intervention vs. control | Intervention vs. control | P values* | |
Dietary sodium (mmol/day) | 206.5 vs. 212.9 | 237.8 vs. 257.2 | 249.2 vs. 257.4 | 236.4 vs. 269.7 | 0.35 |
Dietary potassium (mmol/day) | 50.2 vs. 42.3 | 53.5 vs. 48.3 | 52.6 vs. 44.9 | 53.2 vs. 43.1 | 0.71 |
Sodium to potassium ratio | 4.7 vs. 5.5 | 5.3 vs. 5.9 | 5.3 vs. 6.3 | 5.1 vs. 6.6 | 0.07 |
Know salt is harmful | 79 % vs. 70 % | 82 % vs. 74 % | 90 % vs. 81 % | 94 % vs. 84 % | 0.35 |
Know daily limit is ≤ 6 g/day | 46 % vs. 11 % | 51 % vs. 15 % | 60 % vs. 23 % | 65 % vs. 27 % | 0.48 |
Know reducing salt lowers blood pressure | 67 % vs. 48 % | 67 % vs. 52 % | 72 % vs. 58 % | 73 % vs. 61 % | 0.71 |
Concerned about salt in diet | 79 % vs. 57 % | 78 % vs. 61 % | 75 % vs. 66 % | 79 % vs. 57 % | 0.27 |
Use salt substitute | 53 % vs. 7 % | 65 % vs. 7 % | 65 % vs. 5 % | 59 % vs. 7 % | 0.17 |
Subsidy vs. no subsidy | Subsidy vs. no subsidy | Subsidy vs. no subsidy | Subsidy vs. no subsidy | ||
Use salt substitute | 72 % vs. 36 % | 76 % vs. 50 % | 80 % vs. 47 % | 83 % vs. 31 % | 0.51 |