Table 1.
Characteristics of 2,755 Genetic Epidemiology Network of Salt Sensitivity follow-up study participants
| Baseline | Visit 1 | Visit 2 | |
|---|---|---|---|
| (n = 2,755) | (n = 2,650) | (n = 2,461) | |
| Duration of follow-up, y | — | 4.6±0.7 | 7.4±0.5 |
| Age, y | 48.7±15.9 | 53.7±15.8 | 55.6±15.3 |
| Male, % | 50.3 | 50.1 | 49.6 |
| BMI, kg/m2 | 23.2±3.2 | 23.8±3.6 | 24.4±3.6 |
| Blood pressure, mm Hg | |||
| SBP | 123.4±20.1 | 129.2±21.8 | 134.2±20.0 |
| DBP | 74.0±10.7 | 78.7±11.4 | 81.1±11.2 |
| Antihypertensive medication, % | 7.0 | 11.1 | 16.9 |
| Hypertension, % | 22.7 | 39.2 | 56.2 |
| Hypertension incidencea, % | — | 20.3 | 33.4 |
Data are mean ± SD or percentages.
Abbreviations: BMI, body mass index; DBP, diastolic blood pressure; SBP, systolic blood pressure.
aNewly developed hypertension among 2,130 participants who were free from hypertension at baseline.