. Author manuscript; available in PMC: 2020 Nov 1.

Published in final edited form as: Psychol Aging. 2019 Sep 30;34(7):867–883. doi: 10.1037/pag0000395

Table 1.

Unweighted sample characteristics at baseline and their intercorrelations (N = 8,538)

	Mean (SD) or %	1	2	3	4	5	6	7	8	9
Age (45–93)	62.78 (8.43)	.01	−.29^*	−.27^*	−.09^*	.12^*	−.09^*	−.11^*	−.07^*	.20^*
Sex (% men)	43.76	−.01	−.21^*	.03	.10^*	.09^*	−.15^*	−.17^*	−.01	.11^*
Race/ethnicity (% Black)	24.75	−.01	−.09^*	−.18^*	−.09^*	−.09^*	.06^*	.04^*	.19^*	.13^*
Mother education (% high school or less)	71.33	.15^*	.12^*	.24^*	.26^*	.01	−.03^*	−.01	−.09^*	−.09^*
Father education (% high school or less)	71.94	.12^*	.12^*	.24^*	.27^*	.02	−.04^*	−.00	−.09^*	−.09
Adults in childhood household	2.27 (0.93)	−.02	−.03^*	−.04	−.05^*	.04^*	−.01	−.00	−.01	.04^*
Children in childhood household	2.60 (1.88)	−.10^*	−.05^*	−.12^*	−.15^*	.07^*	.02^*	.03^*	.05^*	.04^*
1. Childhood social support (1–5)	4.16 (0.96)	−	−	−	−	−	−	−	−	−
2. Memory (z-score)	0.27 (0.85)	.06^*	−	−	−	−	−	−	−	−
3. Verbal fluency (z-score)	0.30 (0.89)	.03	.35^*	−	−	−	−	−	−	−
4. Education	15.03 (2.29)	.13^*	.18^*	.30^*	−	−	−	−	−	−
5. Social network size	13.65 (10.14)	.10^*	−.02	−.02	−.04^*	−	−	−	−	−
6. Depressive symptoms (012)	0.81 (1.68)	−.11^*	−.05^*	−.02	−.11^*	−.10^*
7. Perceived stress (0–16)	2.74 (2.63)	−.13^*	−.05^*	−.05	−.09^*	−.12^*	.44^*	−	−	−
8. Body mass index (%)		−.03^*	−.08^*	−.13^*	−.12^*	−.02	.07^*	.04^*	−	−
Underweight (<18.5 kg/m²)	0.89
Normal (18.5–24.9 kg/m²)	25.95
Overweight (25–29.9 kg/m²)	38.43
Obese (30+ kg/m²)	34.73
9. Systolic blood pressure (mm/Hg)	124.52 (15.21)	.00	−.14^*	−.14^*	−.11^*	.04^*	.00	−.03^*	.22^*	−
10. C-reactive protein (%)		−.02	−.02	−.15^*	−.13^*	−.03^*	.07^*	.05^*	.33^*	.13^*
Low (<1 mg/L)	30.60
Moderate (1–3 mg/L)	34.69
High (>3 mg/L)	34.71

Note. CSS = Childhood social support; SD = Standard deviation.

p < .05