Table 6.

Estimates of annual health care resource utilization and costs for JIA patients vs matched controls

JIA cohort vs matched controls	Point estimator	Lower 95% CL	Upper 95% CL	P-value
Total all-cause costs	CR=6.58	6.17	7.02	<0.0001
Inpatient costs	CR=5.39	4.64	6.27	<0.0001
Probability of inpatient admission	OR =1.69	1.23	2.33	0.0012
Emergency room costs	CR=1.27	1.13	1.43	<0.0001
Probability of emergency room visit	OR =1.07	0.93	1.22	0.3376
Office visit costs	CR=3.44	3.24	3.64	<0.0001
Number of office visits	VR =2.62	2.53	2.71	<0.0001
Other outpatient services costsa	CR=6.54	6.06	7.06	<0.0001
Outpatient prescription costs	CR=16.19	14.82	17.70	<0.0001
Outpatient prescription fills	FR =3.24	3.06	3.43	<0.0001

Notes: Adjusted for age, sex, geographic region, health plan, urbanicity, index year, DCCI, comorbid conditions, and concomitant medications; In all cases, ratios were calculated as [JIA]/[controls]; ^aOther outpatient services consist of laboratory, radiology, and hospital outpatient facility costs.

Abbreviations: CL, confidence level; CR, cost ratio; OR, odds ratio; FR, prescription fill ratio; VR, visits ratio.