Table 2.
Characteristics of study participants in 2017 and that in 2018, Tome Na/K Measuring Project, 2017–2018. For each year, we compared the baseline characteristics
| Participated in 2017 | Participated in 2018 | |
|---|---|---|
| n | 12,877 | |
| Age (years)a | 65.4 ± 13.3 | 66.4 ± 13.3 |
| Sex (women)b | 51.0 | 51.0 |
| BMI (kg/m2)a | 23.8 ± 3.6 | 23.8 ± 3.7 |
| Nondrinkerb | 54.0 | 54.2 |
| Alcohol <1 drink/dayb | 27.0 | 27.0 |
| Alcohol 1–2 drink/dayb | 13.5 | 13.5 |
| Alcohol 2 drink/dayb | 5.5 | 5.4 |
| Na/K ratioa | 5.4 ± 3.0 | 4.9 ± 2.2 |
| SBP (mmHg)a | 132.1 ± 17.9 | 130.9 ± 17.4 |
| DBP (mmHg)a | 75.0 ± 11.1 | 75.8 ± 10.9 |
| User of antihypertensive medicationb | 39.4 | 41.7 |
| User of diabetes medicationb | 8.8 | 9.4 |
| Treatment for heart diseaseb | 6.4 | 7.7 |
BMI body mass index, DBP diastolic blood pressure, Na/K ratio sodium/potassium ratio, SBP systolic blood pressure
aMeans ± SD
b%