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Table 2 Coefficient (95% CI) of HRQOL by folate concentration

From: Serum folate concentration and health-related quality of life among the elderly in South Korea

  Tertiles of folate level (median, range, ng/mL) P for trend
T1 (4.3, 1.7–5.6) T2 (7.1, 5.7–9.4) T3 (12.4, 9.5–31.9)
Participants, n 339 348 334  
Model 1 Reference 0.0117 (-0.0195, 0.0428) 0.0219 (-0.0060, 0.0499) 0.12
Model 2 Reference 0.0177 (-0.0103, 0.0457) 0.0399 (0.0122, 0.0676) 0.005
Model 3 Reference 0.0120 (-0.0148, 0.0389) 0.0295 (0.0021, 0.0569) 0.035
Model 4 Reference 0.0118 (-0.0148, 0.0385) 0.0289 (0.0016, 0.0563) 0.038
  1. Model 1: not adjusted; Model 2: adjusted for age and sex; Model 3: further adjusted for marital status, education level, employment status, household income, smoking, alcohol consumption, aerobic physical activity, and BMI; Model 4: further adjusted for diabetes mellitus, hypertension, and dyslipidemia