Table 1. Descriptive study population statistics (n = 75).

Variables	Mean	Standard Deviation
Age in 2013 (years)	39.4	5.6
Salivary telomere length in 2000 (T/S ratio)	2.75	1.03
Buccal telomere length in 2013 (T/S ratio)	1.53	0.34
Change in number of surviving offspring from 2000 to 2013	2.9	1.5
Total number of surviving offspring	5.6	2.1
Maternal age at first birth (years)	19.8	3.1
Average inter-birth interval (years)	3.2	1.0