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

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

	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)	P for trend
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

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

ISSN: 1477-7525