TABLE 3.

Summary of the β estimates (regression coefficients) from the meta-analysis of the association between BMI and telomere length as the outcome and relative telomere length (T/S ratio) as the independent variable¹

						Pooled sample3
		All (total pooled sample)2				“Young” (18–60 y old)				“Middle”-aged (61–75 y old)				“Old” (>75 y old)
Line	Ethnicity	n	Estimate	95% CI	I 2, %	n	Estimate	95% CI	I 2, %	n	Estimate	95% CI	I 2, %	n	Estimate	95% CI	I 2, %
1	Overall	58	−1.58*	−2.14, −1.01*	32.7	55	−2.58*	−3.92, −1.25*	80.0*	50	−1.08*	−1.76, −0.39*	0.0	29	0.20	−1.40, 1.80	0.0
2	White	43	−1.87*	−2.44, −1.31*	8.1	40	−2.80*	−4.77, −0.82*	84.1*	37	−1.65*	−2.45, −0.86*	0.0	21	−0.28	−2.29, 1.73	0.0
3	African American	2	5.66	−6.60, 17.92	80.0*	2	5.21	−5.67, 16.08	68.7	2	0.08	−6.20, 6.36	0.0	1	−0.74	−12.62, 11.14
4	Hispanic	3	2.53	−5.18, 10.25	17.7	3	−0.42	−4.19, 3.34	0.0	3	2.31	−2.35, 6.97	0.0	2	27.29	−40.32, 94.61	77.7*
5	Asian	3	−1.11	−4.23, 2.02	60.4	3	−4.50*	−5.75, −3.25*	0.0	2	2.18	−2.90, 7.27	0.0	0
6	Native American	1	−2.64*	−3.60, −1.68*		1	−4.14*	−5.28, −3.00*		1	2.23	−1.00, 5.46		1	4.68	−2.35, 11.71

¹The unit of the estimates and 95% CI of the T/S ratio is 10⁻³. A random-effects model was used. Statistical heterogeneity was estimated by I² statistics for each of the meta-analyses. *P < 0.05 or I² >50%.“n” indicates number of studies. T/S ratio, telomere to single-copy gene ratio.

²Adjusted for age and sex.

³Adjusted for sex.