TABLE 4.

Multivariate Utilization and Cost Regression Results for Wet OAB Versus Non-OAB

Resource Type	Beta Estimate	Standard Error	Wald 95% Confidence Limits		P Valuea	Scaled Deviance
Health care resource utilization
Hospital admissionsb	0.18	0.07	0.04	0.33	0.012	2,179
SNF admissionsb	0.17	0.16	-0.14	0.49	0.282	809
ER visitsb	0.07	0.11	-0.15	0.28	0.550	2,063
Outpatient visitsc	2.50	0.35	1.81	3.18	< 0.001	2,480
Prescriptions filledc	8.41	0.64	7.15	9.67	< 0.001	2,480
Diagnostic tests performedc	1.36	0.50	0.37	2.35	0.007	2,480
Health care costsd
Hospital cost	0.16	0.12	-0.08	0.40	0.203	3,786
SNF cost	0.04	0.12	-0.19	0.27	0.729	3,680
ER cost	0.39	0.11	0.18	0.61	0.003	3,626
Outpatient cost	0.27	0.04	0.19	0.35	< 0.001	2,764
Pharmacy cost	0.72	0.06	0.60	0.85	< 0.001	3,074
Diagnostic test cost	0.21	0.04	0.13	0.30	< 0.001	2,778
Total health care cost	0.28	0.04	0.20	0.37	< 0.001	2,795

Note: Multivariate model adjustment for age, sex, follow-up time, pre-index values, and comorbid conditions that differed at baseline.

^aBold P values < 0.05.

^bAnalyzed with negative binomial generalized linear regression model.

^cAnalyzed with multiple linear regression model.

^dAnalyzed with gamma generalized linear model regression model.

ER = emergency room; OAB = overactive bladder; SNF = skilled nursing facility.