. 2014 Feb 25;9(2):e90105. doi: 10.1371/journal.pone.0090105

Table 3. Prevalence of the sarcopenia according to gender-specific tertile of serum ferritin.

	tertile of serum ferritin (ng/ml)
Men (n = 952)	1^st tertile (n = 318)	2^nd tertile (n = 317)	3^rd tertile (n = 317)	P-value
Sarcopenia prevalence (%)	25 (7.9)	20 (6.3)	32 (10.1)	0.213
Women (n = 1380)	1^st tertile (n = 460)	2^nd tertile (n = 460)	3^rd tertile (n = 460)	P-value
Sarcopenia prevalence (%)	29 (6.3)	37 (8.0)	55 (12.0)	0.008

Data are N (%). P-values were calculated by chi-square test.

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