Table 1. Descriptive statistics and bivariate correlations among all variables.

M (SD)

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

1. Age

27.39 (1.19)

2. BMI

31.59 (11.44)

−0.06

3. Waist

98.04 (19.88)

−0.02

0.82*

4. Parental education

4.30 (1.70)

−0.26*

0.00

−0.07

5. Income-to-needs ratio

6.55 (3.82)

−0.21*

0.04

−0.03

0.26*

6. African American

80%

0.21*

0.06

−0.01

−0.20*

−0.25*

7. Horvath DNAm age

35.28 (4.36)

0.29*

0.09

0.18*

−0.06

−0.06

−0.11

8. Hannum DNAm age

40.35 (3.96)

−0.04

−0.01

0.01

0.03

0.04

−0.15*

0.11

9. PhenoAge

29.70 (6.13)

0.07

0.16*

0.12*

0.02

−0.12*

−0.01

0.16*

0.27*

10. GrimAge

50.13 (5.75)

0.37*

−0.06

−0.09

−0.13*

−0.15*

0.16*

0.16*

−0.08

0.31

11. Smoking

1.05 (0.83)

0.06

−0.03

0.00

−0.10

−0.03

−0.16*

0.04

−0.04

−0.03

0.17

12. Female

60%

−0.02

0.16*

0.09

−0.11

−0.13*

0.15*

0.07

0.04

0.18*

−0.13*

−0.24*

13. CD8T

0.01 (0.03)

0.03

−0.04

−0.07

0.03

−0.10

0.03

0.03

0.00

0.33*

0.68*

−0.10

0.03

14. CD4T

0.05 (0.05)

−0.21*

−0.10

−0.15*

0.11

0.06

0.00

−0.20*

0.48*

0.41*

0.27*

−0.06

−0.10

0.35*

15. Bcell

0.07 (0.04)

−0.18*

−0.10

−0.14*

0.14*

0.00

0.02

−0.16*

0.48*

0.41*

0.46*

−0.13*

−0.06

0.68*

0.86*

16. Monocyte

0.07 (0.03)

−0.18*

−0.03

−0.08

0.12*

0.03

0.18*

−0.19*

0.45*

0.40*

0.17*

−0.14*

0.07

0.21*

0.85*

0.70*

17. Gran

0.82 (0.12)

0.15*

0.09

0.14*

−0.12

0.00

-0.07

0.14*

−0.38*

−0.10

−0.49*

0.13*

0.01

−0.67*

−0.91*

−0.96*

−0.81*

All correlations involving epigenetic clock variables (Horvath, Hannum, PhenoAge, and GrimAge) are adjusted for participants’ age. ^*p < .05 or lower.