Table 3.

Change (%) in Hospital Admission Volume in Massachusetts Associated with Health Reform among Vulnerable Subpopulations by Safety‐Net Hospital Status

Subpopulation	Safety‐Net Hospitals (a)	Non‐Safety‐Net Hospitals (b)	Relative Change between Safety‐Net and Non‐Safety‐Net Hospitals (c)
Race/ethnicity
Hispanics	5.2% [−5.2%, 15.7%]	4.3% [−15.2%, 23.7%]	4.1% [−7.4%, 15.5%]
Blacks, non‐Hispanic	−6.4% [−27.3%, 14.4%]	11.1% [−5.9%, 28.1%]	−1.3% [−13.0%, 10.5%]
Socioeconomic status
Low‐area‐ income residents	1.9% [−2.2%, 6.0%]	−1.8% [−8.8%, 5.2%]	2.4% [−2.0%, 6.7%]
Baseline uninsured rate
High uninsured rate counties	0.2% [−8.3%, 8.7%]	3.4% [−1.2%, 8.0%]	−4.1% [−14.1%, 5.8%]
Low uninsured rate counties	0.8% [−3.1%, 4.7%]	−0.9% [−7.2%, 5.4%]	1.4% [−2.7%, 5.4%]

The regression models are identical to those used for Table 2 estimated separately for volumes for different subgroups of patients.