Table 4.

Logistic Regression of Factors Associated with Total Thyroidectomy, NCDB 1998–2012

Variable	Odds ratio	CI		p-Value
pT1a vs. pT1b	0.43	0.42	0.44	<0.001
Demographic factors
Patient age, per 10 years	0.96	0.95	0.97	<0.001
Female sex	1.22	1.18	1.26	<0.001
Race/ethnicity
White*
Black	1.07	1.02	1.13	<0.001
Asian	1.01	0.94	1.08	0.86
Other	0.97	0.85	1.10	0.64
Annual household income
<$35,000*
≥$35,000	1.08	1.05	1.11	<0.001
Insurance status
Uninsured*
Private	1.36	1.27	1.44	<0.001
Government	1.25	1.17	1.34	<0.001

^*Reference variable.