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Table 2 Odds ratios and 95% confidence intervals for low muscle mass with four levels of adjustment based upon potassium intake quintiles

From: Potassium intake, skeletal muscle mass, and effect modification by sex: data from the 2008–2011 KNHANES

  Model 1 Model 2 Model 3 Model 4
  ORs 95% CI ORs 95% CI ORs 95% CI ORs 95% CI
Men
 Quintile 1 Reference Reference Reference Reference
 Quintile 2 0.61 0.50–0.74 0.72 0.54–0.94 0.72 0.55–0.95 0.78 0.60–1.03
 Quintile 3 0.50 0.41–0.60 0.62 0.48–0.81 0.64 0.49–0.83 0.71 0.54–0.93
 Quintile 4 0.43 0.35–0.53 0.56 0.43–0.72 0.57 0.44–0.76 0.68 0.51–0.90
 Quintile 5 0.35 0.28–0.42 0.52 0.40–0.67 0.55 0.40–0.75 0.71 0.51–0.98
Women
 Quintile 1 Reference Reference Reference Reference
 Quintile 2 0.78 0.68–0.89 0.86 0.73–1.01 0.84 0.71–0.99 0.88 0.75–1.04
 Quintile 3 0.79 0.69–0.91 0.92 0.78–1.08 0.88 0.74–1.05 0.97 0.81–1.16
 Quintile 4 0.73 0.63–0.84 0.83 0.70–0.99 0.80 0.66–0.97 0.90 0.74–1.11
 Quintile 5 0.71 0.61–0.83 0.77 0.64–0.93 0.72 0.57–0.91 0.87 0.68–1.12
  1. Model 1 is adjusted for age and sex. Model 2 is adjusted for all variables included in Model 1, diabetes, hypertension, body mass index, smoking status, physical activity, white blood cell count, hemoglobin, and total cholesterol. Model 3 is adjusted for all variables included in Model 2, estimated glomerular filtration rate, and protein intake. Model 4 is adjusted for all variables included in Model 3 and total energy intake. Abbreviations: OR, odds ratio; CI, confidence interval