Table 2.
Characteristics of 1,906 GenSalt dietary intervention participants
| Variable | Mean ± SD or percentage | Median (interquartile range) |
|---|---|---|
| Age, years | 38.7±9.6 | 39.0 (33.0–46.0) |
| Men, % | 53.0 | |
| BMI, kg/m2 | 23.3±3.2 | 22.9 (21.1–25.2) |
| SBP, mm Hg | ||
| Baseline | 116.9±14.2 | 115.8 (106.4–127.1) |
| Response to low-sodium intake | −5.5±7.0* | −4.4 (−8.9 to −1.3) |
| Response to high-sodium intake | 4.9±6.0* | 4.7 (0.6–8.2) |
| DBP, mm Hg | ||
| Baseline | 73.7±10.3 | 73.3 (66.7–80.7) |
| Response to low-sodium intake | −2.8±5.5* | −2.7 (−5.6 to 0.4) |
| Response to high-sodium intake | 1.9±5.4* | 1.8 (−1.6 to 5.3) |
| MAP, mm Hg | ||
| Baseline | 88.1±10.9 | 87.7 (80.0–95.4) |
| Response to low-sodium intake | −3.7±5.3* | −3.3 (−6.6 to −0.6) |
| Response to high-sodium intake | 2.9±5.0* | 2.7 (−0.4 to 5.9) |
Abbreviations: BMI, body mass index; DBP, diastolic blood pressure; MAP, mean arterial pressure; SBP, systolic blood pressure.
*P < 0.0001 when compared with no blood pressure change during sodium interventions.