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Table 3 Odds ratios (OR) and 95 % confidence interval (CI) for mental distress classified by hypertension status in relation to estimated salt intake level tertiles

From: Salt intake and mental distress among rural community-dwelling Japanese men

  Estimated daily salt intake tertiles P for trend 1SD increment in estimated daily salt intake (2.0 g/day)
T1 (low) T2 T3 (high)
No. at risk 338 338 338   
Mental distress with hypertension      
 No. of cases (percentage) 26 (7.7) 21 (6.2) 12 (3.6)   
 Age-adjusted OR 1.00 0.80 (0.44–1.45) 0.45 (0.22–0.90) 0.025 0.76 (0.58–0.99)
 Multivariable OR 1.00 0.86 (0.46–1.60) 0.46 (0.22–0.96) 0.045 0.77 (0.58–1.03)
Mental distress without hypertension      
 No. of cases (percentage) 19 (5.6) 8 (2.4) 11 (3.3)   
 Age-adjusted OR 1.00 0.40 (0.17–0.93) 0.53 (0.25–1.14) 0.082 0.67 (0.48–0.94)
 Multivariable OR 1.00 0.42 (0.17–1.05) 0.48 (0.20–1.16) 0.090 0.69 (0.47–1.02)
  1. Multivariable OR: adjusted further for body mass index, systolic blood pressure, antihypertensive medication use, thyroid disease, alcohol consumption, stroking status, AST, triglycerides. HDI-cholesterol, HbAlc, antidiabetic medication use, and GFR. The median values of estimated daily salt intake tertiles were 7.0, 8.8, and 10.8 g/day