Table 1 Age-adjusted clinical characteristics of the study population
From: Salt intake and mental distress among rural community-dwelling Japanese men
| Parameters | Estimated daily salt intake tertiles | P for trend | ||
|---|---|---|---|---|
| T1 (low) | T2 | T3 (high) | ||
| No. at risk | 338 | 338 | 338 | |
| Age, year | 65.6 ± 10.2 | 65.4 ± 10.1 | 64.3 ± 10.0 | |
| Body mass index, kg/m2 | 23.0 | 23.4 | 24.1 | <0.001 |
| Systolic blood pressure, mmHg | 132 | 136 | 137 | <0.001 |
| Diastolic blood pressure, mmHg | 79 | 82 | 82 | 0.003 |
| Antihypertensive medication use, % | 40.2 | 38.7 | 36.8 | 0.640 |
| Thyroid disease, % | 1.5 | 1.2 | 0.9 | 0.813 |
| Current drinker, % | 75.4 | 77.5 | 85.3 | 0.002 |
| Current smoker, % | 26.4 | 18.5 | 18.4 | 0.012 |
| Serum aspartate transaminase (AST), IU/L | 26 | 25 | 25 | 0.226 |
| Serum triglycerides, mg/dl | 115 | 125 | 129 | 0.141 |
| Serum HDL-cholesterol, mg/dl | 56 | 54 | 56 | 0.184 |
| HbA1C, % | 5.7 | 5.6 | 5.7 | 0.363 |
| Antidiabetic medication use, % | 9.1 | 6.5 | 10.5 | 0.164 |
| Glomerular filtration rate (GFR), mL/min/1.73 m2 | 68.1 | 69.7 | 74.1 | <0.001 |
| Kessler 6 score | 1.6 | 1.3 | 1.2 | 0.151 |