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Table 2 Risks of all-cause mortality associated with a standard deviation increase in epigenetic age acceleration

From: Does the epigenetic clock GrimAge predict mortality independent of genetic influences: an 18 year follow-up study in older female twin pairs

 

Individual analyses (N = 413)

Pairwise analyses among twins

All (N = 199) twin pairs

Monozygotic (N = 97) twin pairs

Dizygotic (N = 102) twin pairs

AAHorvath

Model 1

1.02 (0.86–1.20)

1.05 (0.73–1.51)

0.66 (0.31–1.41)

1.22 (0.79–1.87)

Model 1 + education

1.00 (0.85–1.19)

1.00 (0.69–1.45)

0.69 (0.32–1.46)

1.14 (0.73–1.78)

Model 1 + smoking pack-years

1.01 (0.85–1.19)

0.98 (0.68–1.43)

0.67 (0.31–1.44)

1.09 (0.70–1.69)

Model 1 + BMI

1.04 (0.88–1.23)

1.05 (0.73–1.51)

0.71 (0.33–1.53)

1.22 (0.80–1.88)

Model 1 + physical activity

1.04 (0.89–1.22)

1.10 (0.76–1.60)

0.72 (0.32–1.59)

1.48 (0.91–2.41)

Model 1 + lifestyle factorsα

1.05 (0.89–1.23)

1.02 (0.69–1.50)

0.82 (0.33–1.99)

1.32 (0.79–2.18)

Model 2µ

1.04 (0.88–1.23)

0.98 (0.66–1.46)

0.85 (0.35–2.08)

1.22 (0.73–2.05)

Model 2 + chronic diseases

1.07 (0.90–1.27)

0.97 (0.65–1.45)

0.85 (0.35–2.07)

1.20 (0.71–2.03)

AAGrimAge

Model 1

1.31 (1.13–1.53)

1.50 (1.02–2.20)

1.37 (0.74–2.55)

1.59 (0.97–2.60)

Model 1 + education

1.29 (1.09–1.52)

1.51 (1.00–2.28)

1.39 (0.74–2.62)

1.65 (0.95–2.86)

Model 1 + smoking pack-years

1.27 (1.05–1.54)

1.29 (0.84–1.99)

1.16 (0.57–2.39)

1.34 (0.78–2.32)

Model 1 + BMI

1.31 (1.13–1.52)

1.52 (1.03–2.25)

1.61 (0.82–3.16)

1.59 (0.97–2.59)

Model 1 + physical activity

1.31(1.13–1.52)

1.59 (1.07–2.38)

1.83 (0.88–3.79)

1.86 (1.07–3.21)

Model 1 + lifestyle factorsα

1.31 (1.08–1.59)

1.49 (0.93–2.38)

2.20 (0.85–5.67)

1.60 (0.86–2.97)

Model 2µ

1.28 (1.05–1.55)

1.45 (0.89–2.36)

2.58 (0.91–7.33)

1.52 (0.79–2.93)

Model 2 + chronic diseases

1.24 (1.02–1.51)

1.42 (0.87–2.31)

2.59 (0.91–7.38)

1.40 (0.71–2.76)

  1. Hazard ratios and 95% confidence intervals are presented in the table. adjusted for family relatedness α adjusted for family relatedness, smoking pack-years, BMI, physical activity and alcohol consumption µ adjusted for family relatedness, education, smoking pack-years, BMI, physical activity and alcohol consumption. BMI, body mass index. Statistically significant values are bolded. We also tested whether the estimates differed between individual twins from monozygotic and dizygotic twins and found no evidence of differences in zygosity (all adjusted p values 0.219 or greater for AAHorvath and 0.804 or greater for AAGrimAge)