Table 1.

Global Measures of Psychological Function for TMD Cases and Controls

Putative risk factor	Units and potential range	Controls			TMD cases			P-value1	Non-imputed effect estimates2				Imputed effect estimates
									Site-adjusted effect3		Fully adjusted effect4		Fully adjusted effect
		n	mean	se	n	mean	se		SOR5	95% CI6	SOR	95%CI	n	SOR	95%CI
SCL 90R Depression	(0–4 scale)	1594	0.37	0.01	181	0.64	0.05	<0.0001	1.5	1.3, 1.7	1.6	1.4, 1.8	1807	1.6	1.4, 1.8
SCL 90R Somatization	(0–4 scale)	1604	0.25	0.01	182	0.64	0.04	<0.0001	2.1	1.8, 2.4	2.1	1.8, 2.4	1807	2.1	1.8, 2.4
SCL 90R Anxiety	(0–4 scale)	1608	0.19	0.01	182	0.35	0.03	<0.0001	1.4	1.2, 1.6	1.5	1.3, 1.7	1807	1.4	1.3, 1.7
SCL 90R Hostility	(0–4 scale)	1617	0.27	0.01	182	0.46	0.04	<0.0001	1.4	1.2, 1.6	1.5	1.3, 1.7	1807	1.5	1.3, 1.7
EPQ-R Extraversion	(0–12 scale)	1606	8.44	0.08	180	8.37	0.25	0.7642	1.0	0.8, 1.1	1.0	0.8, 1.2	1807	1.0	0.8, 1.2
EPQ-R Neuroticism	(0–12 scale)	1611	4.20	0.08	180	5.60	0.26	<0.0001	1.6	1.3, 1.8	1.4	1.2, 1.7	1807	1.4	1.2, 1.7

¹P-values are from analysis variance model comparing mean values of putative risk factor between cases and controls, with adjustment for study site.

²Non-imputed effect estimates are for complete case analysis using numbers of subjects in columns headed n.

³Site-adjusted effects were computed in logistic regression models where the putative risk factor as the main explanatory variable and study site as covariate.

⁴Fully-adjusted effects were computed in logistic regression models that additionally include covariates of age group, gender and race/ethnicity.

⁵SOR is standardized odds ratio from a logistic regression model evaluating the linear effect of the risk factor that was standardized by z-score transformation

⁶95% confidence interval for SOR