Table S3.

Sample characteristics and weighted descriptive statistics of covariates^a

	Add Health, n = 7,889		MIDUS, n = 863		HRS, n = 4,323		NSHAP, n = 1,571
Variable	Mean (SD) or %	Range	Mean (SD) or %	Range	Mean (SD) or %	Range	Mean (SD) or %	Range
Age, years	28.2 (01.9)	24–32	44.0 (9.9)	25–64	67.3 (10.5)	50–98	67.3 (7.1)	57–85
Sex, 1 = female	48.4%	—	55.5%	—	54.9%	—	53.3%	—
Race
White	69.2%	—	92.4%	—	86.5%	—	85.3%	—
Black	16.3%	—	2.9%	—	13.5%	—	8.0%	—
Hispanic	9.3%	—	2.1%	—			6.7%	—
Others	5.2%		2.6%	—
Educational attainment	(Parental)
High school or less	41.4%	—	26.5%	—	49.1%	—	70.8%	—
Some college	30.9%	—	29.1%	—	50.9%	—
Bachelor's degree or higher	20.8%	—	44.4%	—			29.2%	—
Family income, in thousands			80.6 (61.4)	0–300	66.5 (128.9)	0–7,000
Family structure
Two-parent, biological	56.4%	—
Two-parent, step	16.2%	—
Single mother	19.4%	—
Single father or other	8.0%	—
Smoking, 1 = current/former smoker	24.3%	—	43.3%	—	56.3%	—	51.1%	—
Physical activity, 1 = <3 times per week	14.1%	—	20.9%	—	46.2%	—	33.1%	—
Alcohol drinks, 1 = excessive drinking					1.9%		3.5%	—
Depressive symptoms, CES-D	5 (4.3)	0–15	7.8 (7.7)	0–49	1.4 (1.8)	0–8	4.3 (4.1)	0–29
Perceived stress, Cohen’s scale	4.7 (3.1)	0–16	21.6 (6.2)	10–48			5.6 (2.1)	0–16
Diabetes, 1 = ever diagnosed	0.4%	—	8.6%	—			17.9%	—
Antihypertensive medication use, 1 = yes			31.9%	—	46.1%	—	56.9%	—
Cholesterol medication use, 1 = yes			27.1%	—	13.9%	—
Corticosteroid medication use, 1 = yes			12.7%	—
Antidepressant medication use, 1 = yes			15.2%	—

^aMost covariates were measured at the baseline. Exceptions include smoking, physical activity, and depressive symptoms (CES-D); perceived stress (Add Health and the MIDUS); and medication uses (MIDUS), which were measured at the same wave as the outcome variables.