Table 3

Univariate and multivariable linear regression analyses to identify independent predictors of leucocyte telomere length (LTL) according to LTL quartiles

ParametersQuartileUnadjusted regression coefficientP valueAdjusted regression coefficientP valueR2
Body mass index (kg/m2)Quartile10.93
Quartile 2−16.4 (–16.5 to –17.3)<0.0001−16.9 (–17.5 to –16.3)<0.0001
Quartile 3−22.5 (–25.1 to –21.9)<0.0001−23.5 (–24.1 to –22.9)<0.0001
Quartile 4−29.7 (–28.7 to –28.4)<0.0001−29.0 (–29.7 to –28.4)<0.0001
Waist circumference (cm)Quartile 10.87
Quartile 2−6.71 (–7.21 to –6.21)<0.0001−6.6 (–7.1 to –6.1)<0.0001
Quartile 3−9.40 (–9.92 to –8.82)<0.0001−9.30 (–9.8 to –8.70)<0.0001
Quartile 4−19.63 (–20.13 to –19.12)<0.0001−19.5 (–20.6 to –18.9)<0.0001
Hip circumference (cm)Quartile 10.82
Quartile 2−6.29 (–6.91 to –0.566)<0.0001−6.2 (–6.9 to –5.6)<0.0001
Quartile 3– 8.17 (−8.82 to –7.51)<0.0001−8.05 (–8.7 to –7.3)<0.0001
Quartile 4– 19.98 (–20.64 to –19.33)<0.0001−19.7 (–20.4 to –19.0)<0.0001
Waist-hip ratioQuartile 10.84
Quartile 2−0.008 (–0.011 to –0.005)<0.0001−0.008 (–0.01–0.005)<0.0001
Quartile 3– 0.018 (−0.021 to –0.015)<0.0001−0.18 (–0.21 to –0.15)<0.0001
Quartile 4– 0.009 (−0.012 to –0.006)<0.0001−0.01 (–0.01 to –0.007)<0.0001
Waist-height ratioQuartile 10.74
Quartile 2−0.047 (–0.053 to –0.042)<0.0001−0.04 (–0.05 to –0.04)<0.0001
Quartile 3−0.07 (–0.07 to –0.06)<0.0001−0.07 (–0.07 to –0.06)<0.0001
Quartile 4−0.132 (–0.141 to –0.130)<0.0001−0.13 (–0.14 to –0.12)<0.0001
Subscapular
/triceps ratio
Quartile 10.69
Quartile 2−0.18 (–0.20 to –0.17)<0.0001−0.18 (–0.20 to –0.17)<0.0001
Quartile 3−0.26 (–0.28 to –0.25)<0.0001−0.26 (–0.28 to –0.25)<0.0001
Quartile 4−0.15 (–0.170 to –0.14)<0.0001−0.16 (–0.17 to –0.14)<0.0001
Central skinfoldsQuartile 10.92
Quartile 2−33.6 (–34.82 to –32.5)<0.0001−33.5 (–34.7 to –32.4)<0.0001
Quartile 3−45.29 (–46.47 to –44.11)<0.0001−45.0 (–46.2 to –43.8)<0.0001
Quartile 4−52.5 (–53.7 to –51.40)<0.0001−52.3 (–53.8 to –51.1)<0.0001
Peripheral skinfoldsQuartile 10.0008
Quartile 2−0.77 (–3.07 to 1.51)0.51
Quartile 3−0.59 (–2.98 to 1.78)0.62
Quartile 4−0.098 (–2.48 to 2.29)0.93
Total skinfolds (Σ4SF)Quartile 1
Quartile 2−65.88 (–68.55 to –63.21)<0.0001−65.6 (–68.3 to –62.9)<0.00010.90
Quartile 3−88.25 (–91.03 to –85.48)<0.0001−87.6 (–90.4 to –84.8)<0.0001
Quartile 4−111.1 (–113.9 to –108.40)<0.0001−110.5 (–113 to –107)<0.0001
  • Adjusted for age, family income, education and hypertension. P value <0.05 is statistically significant.

  • Σ4SF, sum of 4 skinfolds.