Table 4.

Logistic regression analysis in subgroup.

	Simple regression		Multiple regression
	OR (95% CI)	P value	OR (95% CI)	P value
Age (years)	1.017 (0.965-1.072)	0.521	0.996 (0.917-1.081)	0.920
CRP(mg/dL)	6.021 (1.319-27.485)	0.020	9.163 (0.772-108.764)	0.790
LTL (T/S ratio)	0.162 (0.054-0.488)	0.001	0.188 (0.046-0.766)	0.020
Leukocyte PGC-1α mRNA	0.405 (0.208-0.788)	0.008	0.460 (0.196-1.080)	0.075
Serum PGC-1α(pg/mL)	0.987 (0.978-0.997)	0.008	0.983 (0.968-0.998)	0.031

Abbreviations: CI:, confidence interval; CRP: C-reactive protein; T/S ratio: the ratio of telomere repeats to single-copy gene copies; PGC-1α: peroxisome proliferator-activated receptor γ coactivator-1α. P < 0.05 with italic font means statistically significant.