Table 2.

Comparison of healthcare utilization, one year before and after enrollment

Healthcare Utilization	One Year Before		One Year After		Within Group Change
	Median	IQ Range	Median	IQ Range	Median	IQ Range	P value
Intervention Group
ED visits	1.0	0.0–2.0	0	0.0–1.5	0	−1.0 – 0.0	0.087
Primary care visits	3.0	1.0–4.0	3.5	2.0–5.0	0	−1.0 – 3.0	0.041
Control Group
ED visits	1.0	0.0–2.0	0	0.0–2.0	0	−1.0 – 1.0	0.879
Primary care visits	3.0	1.0–5.0	3.0	1.0–5.0	0	−1.0 – 1.0	0.570

Abbreviations: IQ, Interquartile; ED, Emergency Department.

Median within group change refers to the median change in the number of visits in the year before study enrollment to the number of visits in the intervention year.

Results are based on signed-rank test.