Table 3.

PCS at 50 – Geographic interactions, weighted to 2014

	Southern birth interaction			Rural residence at 14 interaction
Variables	Beta	95%CI	p-value	Beta	95%CI	p-value
Constant	50.67	(50.14,51.19)	<0.0005	50.60	(50.07,51.12)	<0.0005
Education	0.87	(0.72,1.03)	<0.0005	0.93	(0.79,1.07)	<0.0005
Female	−1.72	(−2.26,−1.18)	<0.0005	−1.71	(−2.25,−1.17)	<0.0005
Non-Hispanic Black	−0.44	(−1.12,0.23)	0.200	−0.44	(−1.12,0.24)	0.203
Hispanic	0.86	(−0.13,1.85)	0.089	0.88	(−0.11,1.88)	0.081
Other Race / missing	0.64	(−0.52,1.79)	0.282	0.61	(−0.55,1.77)	0.300
Childhood SES	−1.55	(−2.24,−0.86)	<0.0005	−1.56	(−2.26,−0.87)	<0.0005
Southern birth	−1.05	(−1.79,−0.31)	0.005	−0.95	(−1.58,−0.33)	0.003
Immigrant	−0.21	(−1.96,1.53)	0.810	−0.21	(−1.95,1.54)	0.817
Rural residence at 14	−0.15	(−0.81,0.52)	0.661	−0.05	(−0.85,0.74)	0.895
Birth year	−0.01	(−0.14,0.11)	0.830	−0.01	(−0.13,0.11)	0.853
Southern birth * education	0.11	(−0.15,0.36)	0.415
Rural residence at 14 * education				−0.10	(−0.40,0.20)	0.518

PCS is physical health component summary score.

Education is centered at 12, and birth year is centered at 1960 so the constant is interpretable.

Education is coded linearly as years of education; a 1-unit increase in education is a 1-year increase in schooling.