Table 5. Odds ratios of the sarcopenia among Korean elders according to the tertile of serum ferritin.

	1st tertile	2nd tertile	3rd tertile	p for trend
Men	N = 318	N = 317	N = 317
Unadjusted	1	0.79 (0.43–1.45)	1.32 (0.76–2.28)	0.218
Model 1	1	0.85 (0.46–1.57)	1.40 (0.80–2.43)	0.219
Model 2		0.77 (0.40–1.48)	0.92 (0.50–1.67)	0.726
Model 3	1	0.89 (0.45–1.77)	1.40 (0.75–2.65)	0.349
Women	N = 460	N = 460	N = 460
Unadjusted	1	1.30 (0.79–2.15)	2.02 (1.26–3.23)	0.009
Model 1	1	1.30 (0.79–2.16)	2.08 (1.30–3.34)	0.006
Model 2	1	1.39 (0.81–3.21)	1.85 (1.12–3.06)	0.054
Model 3	1	1.36 (0.78–2.38)	1.74 (1.02–2.97)	0.124

Model 1: Adjusted for age and height.

Model 2: Adjusted for age and body mass index.

Model 3: Adjusted for age, height, BMI, comorbidity, log(energy intake), log(physical activity), hemoglobin, WBC count, Vitamin D and log(HOMA-IR).

Serum ferritin levels are as follows: for men-1^st tertile (≤69.51), 2^nd tertile (69.52–130.40), 3^rd tertile (130.40<); for women-1^st tertile (≤45.90), 2^nd tertile (45.91–77.45), 3^rd tertile (77.45<), respectively.