Table 4.

MCS 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	53.91	(53.44,54.37 )	<0.000 5	53.86	(53.40,54.32)	<0.000 5
Education	0.63	(0.24,1.03)	0.002	0.80	(0.47,1.13)	<0.000 5
Female	−2.40	(−2.90,−1.89)	<0.000 5	−2.39	(−2.90,−1.89)	<0.000 5
Non-Hispanic Black	0.26	(−0.34,0.85)	0.401	0.26	(−0.33,0.86)	0.387
Hispanic	1.15	(0.31,1.98)	0.007	1.18	(0.35,2.01)	0.005
Other Race / missing	0.76	(−0.27,1.80)	0.148	0.72	(−0.31,1.75)	0.172
Childhood SES	−0.62	(−1.25,0.01)	0.054	−0.61	(−1.24,0.02)	0.057
Southern birth	−0.01	(−0.60,0.58)	0.975	0.01	(−0.57,0.59)	0.971
Immigrant	−0.62	(−2.05,0.82)	0.400	−0.61	(−2.05,0.83)	0.409
Rural residence at 14	0.69	(0.09,1.30)	0.025	0.73	(0.11,1.36)	0.022
Birth year	0.15	(0.04,0.27)	0.009	0.16	(0.04,0.27)	0.008
Southern birth * education	0.20	(−0.35,0.75)	0.474
Rural residence at 14 * education				−0.31	(−0.93,0.32)	0.335

MCS is mental 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 until 13 years, and flat thereafter (i.e. everything after 13 years of schooling is recoded as 13 years because we found this specification was the best fit for the MCS data). A 1-unit increase in education is a 1-year increase in schooling until 13 years.