Table 1.

Telomere length by selected socio-demographic characteristics of study participants, the Shanghai Women's Health Study

Socio-demographic Characterist	Telomere Length, N = 2,912
	N (%)	aMean (95% CIs)	P_ANOVA	bMean (95% CIs)	P_ANOVA
Age
40–45	558(19.2)	0.996(0.980, 1.011)		1.001 (0.984, 1.018)
46–50	504(17.3)	0.965(0.949,0.981)		0.970 (0.953, 0.986)
51–55	412(14.1)	0.940 (0.923, 0.957)		0.944 (0.926, 0.962)
56–60	338(11.6)	0.905 (0.887, 0.925)	<0.001	0.907 (0.888, 0.926)	<0.001
61–65	523(18.0)	0.910(0.896,0.925)		0.906(0.891,0.922)
66–70	577(19.8)	0.886 (0.873, 0.900)		0.878 (0.863, 0.894)
		Ptrend <0.001		Ptrend <0.001
cEducation
≤HS	2,120(72.8)	0.928 (0.920, 0.936)		0.929 (0.920, 0.937)
>HS	790 (27.2)	0.952 (0.937, 0.966)	0.009	0.950 (0.933, 0.966)	0.042
Income
Low	872 (30.0)	0.945 (0.933, 0.957)		0.942 (0.930, 0.954)
Middle	1,169(40.1)	0.933 (0.923, 0.943)	0.080	0.933 (0.923, 0.943)	0.330
High	871 (29.9)	0.925(0.913,0.937)		0.928(0.916,0.941)
		Ptrend <0.027		Ptrend =0.146
Marital status
Married	2,502(85.9)	0.932 (0.925, 0.939)		0.932 (0.925, 0.939)
Unmarried	410(14.1 )	0.948(0.931,0.966)	0.94	0.946 (0.928, 0.964)	0.177
dOccupation
Professional	827 (28.5 )	0.929(0.917,0.941)		0.936 (0.926, 0.949)
Clerical	554(19.1)	0.927 (0.912, 0.942)	0.161	0.925(0.911,0.940)	0.369
Manual workers	1,521 (52.4)	0.940 (0.932, 0.949)		0.937 (0.928, 0.947)

^aEducation, household income, marital status and occupation were adjusted for age.

^bMutually adjusted for variables included in the table and also adjusted for cigarette smoking status and regular alcohol consumption.

^cTwo subjects had data missing on education.

^dTen subjects had data missing on occupation.