Table 2:

Results of the multinomial logistic regression (n=16,179). Nominal outcomes (TnoM = tympanoplasty without mastoidectomy, CWD = canal wall down) were compared to a designated base (CWU = canal wall up). Log odds of the outcomes are modeled as a linear combination of predictor variables. Effect size is reported as a linear coefficient where negative predictors are <0 and positive predictors are

		TnoM (compared to CWU base)			CWD (compared to CWU base)
		Coefficient	95% CI	P-value	Coefficient	95% CI	P-value
Per Calendar Year		−0.01	−0.02, 0.00	0.027*	−0.02	−0.03, −0.01	<0.001*
Age
	<18 years	Reference			Reference
	≥18 years	−0.67	−0.77, −0.57	<0.001*	0.30	0.17, 0.44	<0.001*
Pre-operative Complication
	Absent	Reference			Reference
	Present	−0.61	−0.80, −0.42	<0.001*	0.30	0.14, 0.46	<0.001*
Race/Ethnicity
	White	Reference			Reference
	Black	−0.19	−0.38, 0.01	0.057	0.22	0.03, 0.41	0.024*
	Hispanic	−0.21	−0.36, −0.05	<0.001*	0.22	0.07, 0.38	0.005*
	Asian	−0.08	−0.30, 0.15	0.501	0.26	0.03, 0.49	0.029*
Annual Household Income
	<$100,000	Reference			Reference
	>$100,000	22.90	2.74, 43.06	0.026*	−0.04	−0.14, 0.06	0.437