. Author manuscript; available in PMC: 2016 Sep 1.

Published in final edited form as: J Health Soc Behav. 2015 Sep;56(3):323–340. doi: 10.1177/0022146515594188

Table 2.

Beta coefficients estimated using logistic regression showing the association between smoking at midlife and both education and adolescent cognition

Sample	Variable Name	Model 1		P	Model 2		P	Model 3		P	Model 4		P
Sample	Variable Name	OR	95% CI	P	OR	95% CI	P	OR	95% CI	P	OR	95% CI	P
US 1939	University Degree	0.40	0.31, 0.52	<0.001				0.38	0.29, 0.49	<0.001	0.38	0.29, 0.49	<0.001
	Adolescent Cognition				0.90	0.84, 0.97	0.003				1.00	0.93, 1.08	0.973
	Female							0.89	0.77, 1.02	0.094	0.89	0.77, 1.02	0.094
	Parental social class							1.09	0.92, 1.28	0.312	1.09	0.92, 1.28	0.313
	Pseudo-R²	0.012		<0.001	0.002		0.003	0.013		<0.001	0.013		<0.001

GB 1946	University Degree	0.52	0.40, 0.68	<0.001				0.52	0.39, 0.69	<0.001	0.56	0.42, 0.76	<0.001
	Adolescent Cognition				0.72	0.60, 0.86	<0.001				0.83	0.68, 1.00	0.054
	Female							0.80	0.60, 1.05	0.105	0.80	0.61, 1.06	0.118
	Parental social class							0.75	0.57, 0.99	0.042	0.79	0.59, 1.04	0.089
	Pseudo-R²	0.016		<0.001	0.010		0.000	0.022		<0.001	0.024		<0.001

GB 1958	University Degree	0.69	0.53, 0.88	0.003				0.66	0.51, 0.86	0.002	0.72	0.54, 0.98	0.036
	Adolescent Cognition				0.81	0.69, 0.96	0.015				0.88	0.71, 1.09	0.233
	Female							0.95	0.76, 1.19	0.658	0.93	0.75, 1.17	0.543
	Parental social class							1.10	0.87, 1.40	0.424	1.14	0.89, 1.45	0.308
	Pseudo-R²	0.004		0.003	0.003		0.015	0.004		0.0235	0.005		0.0228