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. Author manuscript; available in PMC: 2017 Sep 28.
Published in final edited form as: Eur J Epidemiol. 2016 Sep 22;32(1):67–75. doi: 10.1007/s10654-016-0199-6

Table 2.

Baseline characteristics of SHFS participants according to LTL quartiles (N = 2568)

Characteristics LTL quartiles P for trenda

Q1 Q2 Q3 Q4
No. of participants 633 626 678 631
Age, years (mean ± SD) 47.5 ± 16.0 42.9 ± 15.9 36.8 ± 15.4 31.7 ± 14.7 <0.001
Male, n (%) 253 (39.97) 244 (38.98) 281 (41.45) 241 (38.19) 0.026
Current drinking, n (%) 343 (54.19) 350 (55.91) 407 (60.03) 417 (66.09) 0.486
Education level, years (mean ± SD) 12.3 ± 2.3 12.3 ± 2.3 12.1 ± 2.3 11.9 ± 2.2 0.960
Processed meat consumption (g/day, mean ± SD)b 38.6 ± 41.5 37.1 ± 39.7 47.4 ± 65.0 41.2 ± 48.1 0.761
Ideal cardiovascular health indices
Current smoking, n (%) 217 (34.34) 230 (36.86) 261 (38.50) 239 (37.88) 0.722
BMI (kg/m2, mean ± SD) 32.18 ± 7.62 31.92 ± 7.82 31.26 ± 7.41 29.50 ± 7.15 <0.001
Physical activity (steps/day, mean ± SD) 5275.2 ± 3859.5 5701.3 ± 3809.2 6235.4 ± 3905.2 6555.1 ± 4023.0 0.079
Diet, healthy score (mean ± SD) 0.7 ± 0.7 0.6 ± 0.7 0.5 ± 0.6 0.5 ± 0.7 0.983
SBP (mmHg, mean ± SD) 124.5 ± 17.5 124.1 ± 17.1 122.9 ± 16.5 118.8 ± 15.0 0.053
DBP (mmHg, mean ± SD) 76.5 ± 10.6 76.6 ± 11.3 77.0 ± 11.4 74.8 ± 10.5 0.803
TC (mg/dL, mean ± SD) 187.3 ± 38.6 185.7 ± 36.2 183.0 ± 37.1 174.9 ± 37.8 0.561
FPG (mg/dL, mean ± SD) 116.5 ± 52.9 112.7 ± 47.8 105.3 ± 44.1 100.1 ± 33.5 0.003

LTL leukocyte telomere length, Q quartile, BMI body mass index, SBP systolic blood pressure, DBP diastolic blood pressure, TC total cholesterol, FPG fasting plasma glucose

a

Adjust for age and sex using GEE regression model to account for family relatedness of participants

b

Processed meat included breakfast sausage, spam, hotdogs, and lunchmeat