Table 2.

Association between baseline arsenic exposure and telomere length, Health Effects of Arsenic Longitudinal Study, Bangladesh, 2000–2009 (n = 1469).

Arsenic exposure type	Sample sizea	Minimally-adjusted modelb			Covariate-adjusted modelc
		β	CI	P	β	CI	P
Water Arsenic (μg/L)
Continuousd	1461	0.000	− 0.003,0.004	0.78	0.000	− 0.003,0.004	0.89
Categorical
0.1–10	359	0.000	Ref.	Ref.	0.000	Ref.	Ref.
10.1–50	339	− 0.017	− 0.037,0.003	0.10	− 0.018	− 0.038,0.002	0.081
50.1–150	447	0.006	− 0.012,0.025	0.51	0.005	− 0.014,0.024	0.60
150.1+	316	− 0.001	− 0.021,0.020	0.96	− 0.002	− 0.022,0.019	0.86
		Ptrend = 0.47			Ptrend = 0.55
Creatinine-Adjusted Urinary Arsenic (μg/g)
Continuousd	1461	0.001	− 0.007,0.009	0.77	0.000	− 0.008,0.009	0.92
Categorical
< 105	363	0.000	Ref.	Ref.	0.000	Ref.	Ref.
105- < 194	354	0.000	− 0.020,0.019	0.98	0.000	− 0.020,0.019	0.98
194- < 329	363	− 0.004	− 0.024,0.015	0.68	− 0.005	− 0.025,0.015	0.61
329+	381	0.008	− 0.011,0.028	0.39	0.007	− 0.013,0.027	0.49
		Ptrend = 0.48			Ptrend = 0.60
Daily arsenic dose (μg/day)
Continuousd	1461	0.001	− 0.002,0.005	0.51	0.001	− 0.003,0.005	0.58
Categorical
< 30.4	362	0.000	Ref.	Ref.	0.000	Ref.	Ref.
30.4- < 147	361	− 0.008	− 0.027,0.012	0.44	− 0.008	− 0.028,0.012	0.43
147- < 376	366	0.006	− 0.014,0.025	0.57	0.005	− 0.015,0.024	0.64
376+	372	0.011	− 0.009,0.030	0.28	0.010	− 0.010,0.029	0.32
		Ptrend = 0.15			Ptrend = 0.18

^aSample sizes of subjects without missing data for the covariate-adjusted model.

^bAdjusting for age, sex, and laboratory batch variables.

^cAdditionally adjusting for BMI, education, smoking status, TV ownership, and land ownership.

^dLog-transformed.