Table 2.

Telomere length ^a by selected subject characteristics among the normal controls

Characteristics	N	Mean	SD	Q1	Median	Q3	p
Sex
Males	43	0.91	0.17	0.78	0.92	1.03
Females	49	0.94	0.18	0.79	0.94	1.06	0.51
Age
<54 years	45	0.94	0.18	0.80	0.94	1.06
≥54 years	47	0.91	0.17	0.80	0.89	1.04	0.36
BMI
<18.5	2	0.89	-	0.83	0.89	0.95
18.5 - <23	40	0.92	0.18	0.75	0.92	1.04
23 - <27.5	46	0.94	0.17	0.80	0.93	1.06
≥27.5	4	0.94	0.18	0.82	0.94	1.06	0.78
Smoke tobacco
Ever	28	0.89	0.17	0.77	0.90	0.97
Never	64	0.94	0.18	0.79	0.95	1.06	0.21
Drink alcohol
Any	11	0.94	0.13	0.89	0.95	1.04
None	81	0.92	0.18	0.78	0.91	1.05	0.65
Hypertension
Yes	63	0.92	0.17	0.77	0.90	1.04
No	29	0.94	0.18	0.84	0.95	1.06	0.36

^aCalculated as telomeric DNA (T) divided by amount of single-copy control gene DNA (S) to produce the relative measurement of telomere length (T/S ratio).

Abbreviations: SD, standard deviation; Q1, first quartile; Q3, third quartile; BMI, body mass index.