Table 2.

Age-adjusted Spearman correlations of leukocyte telomere length and mitochondria DNA copy number with body shape/BMI/waist circumference across the lifespan among women in the Nurses’ Health Study

	Body shape	Body shape	BMI	BMI	BMI	BMI	BMI change	Waist circumference
	(age 5)	(age 10)	(age 18)	(age 40)	(age 50)	(age 60)	(age 18–60)	(in 1986)
TL z-score
N	7908	7949	7858	3441	7267	8135	7782	6011
rsa	0.01	0.002	0.005	−0.02	−.02b	−.03c	−.03c	−.03c
mtCN z-score
N	3846	3868	3811	1734	3556	3952	3769	2885
rsa	−0.02	−.04b	−.04b	−.07c	−.04b	−.05c	−0.03	−.05c

^aSpearman correlation coefficient adjusted for age at blood collection.

^bP < 0.05.

^cP < 0.01.

Abbreviations: BMI, body mass index; TL, telomere length; mtCN, mitochondrial DNA copy number.