Table 4 DD estimates for various combinations of treatment and control groups and vulnerable populations

From: Impact of the Medicare hospital readmissions reduction program on vulnerable populations

Sample	Treatment: Medicare 65+; Control: Medicare GI 65+					Treatment: Medicare 65+; Control: Private Insurance 45+
Sample	AMI	HF	PN	Target	NonTarget	AMI	HF	PN	Target	NonTarget
Full Sample	-0.012^c (0.001)	-0.008^c (0.001)	-0.005^c (0.001)	-0.008^c (0.001)	0.000 (0.002)	-0.009^c (0.002)	-0.008^c (0.002)	-0.008^c (0.002)	-0.007^c (0.001)	-0.004^c (0.000)
Hospital Groups Based on Quartiles of Low-Income Patients
Group 1: lowest quartile	-0.014^c (0.003)	-0.010^c (0.002)	-0.009^c (0.002)	-0.011^c (0.002)	0.002 (0.005)	-0.010^c (0.004)	-0.006 (0.004)	-0.010^c (0.004)	-0.008^c (0.002)	-0.005^c (0.001)
Group 2: second quartile	-0.013^c (0.003)	-0.010^c (0.002)	-0.005^b (0.002)	-0.009^c (0.002)	-0.003 (0.004)	-0.010^c (0.003)	-0.008^b (0.004)	-0.012^c (0.003)	-0.009^c (0.002)	-0.004^c (0.001)
Group 3: third quartile	-0.010^c (0.003)	-0.007^c (0.002)	-0.004^a (0.002)	-0.007^c (0.002)	0.003 (0.004)	-0.008^c (0.003)	-0.013^c (0.004)	-0.006^a (0.003)	-0.007^c (0.002)	-0.004^c (0.001)
Group 4: top quartile	-0.018^c (0.005)	-0.006^a (0.003)	-0.000 (0.003)	-0.003 (0.003)	0.003 (0.008)	-0.028^c (0.006)	-0.001 (0.007)	0.001 (0.005)	-0.002 (0.004)	-0.006^c (0.001)
Hospital Groups Based on Quartiles of Medicaid Patients
Group 1: lowest quartile	-0.013^c (0.003)	-0.008^c (0.002)	-0.004^a (0.002)	-0.008^c (0.002)	0.000 (0.005)	-0.012^c (0.004)	-0.010^b (0.004)	-0.010^b (0.004)	-0.009^c (0.002)	-0.004^c (0.001)
Group 2: second quartile	-0.011^c (0.003)	-0.008^c (0.002)	-0.007^c (0.002)	-0.008^c (0.002)	0.004 (0.005)	-0.008^b (0.003)	-0.013^c (0.004)	-0.009^b (0.003)	-0.009^c (0.002)	-0.004^c (0.001)
Group 3: third quartile	-0.014^c (0.003)	-0.009^c (0.002)	-0.006^c (0.002)	-0.009^c (0.002)	-0.002 (0.005)	-0.011^c (0.003)	-0.005 (0.004)	-0.010^c (0.003)	-0.006^c (0.002)	-0.004^c (0.001)
Group 4: top quartile	-0.010^c (0.003)	-0.009^c (0.003)	-0.002 (0.003)	-0.006^c (0.002)	0.001 (0.006)	-0.007^a (0.004)	-0.008^a (0.005)	-0.004 (0.004)	-0.005^a (0.003)	-0.006^c (0.001)
Patient Groups Based on Quartiles of Zip Code Level Median Household Income
Group 1: lowest quartile	-0.008^c (0.003)	-0.005^b (0.002)	-0.002 (0.002)	-0.004^c (0.002)	0.005 (0.005)	-0.008^b (0.003)	-0.005 (0.004)	-0.006^a (0.003)	-0.005^b (0.002)	-0.004^c (0.001)
Group 2: second quartile	-0.010^c (0.003)	-0.007^c (0.002)	-0.004^a (0.002)	-0.007^c (0.002)	0.004 (0.005)	-0.006^a (0.003)	-0.011^b (0.005)	-0.008^b (0.004)	-0.007^c (0.002)	-0.003^c (0.001)
Group 3: third quartile	-0.015^c (0.003)	-0.011^c (0.002)	-0.008^c (0.002)	-0.011^c (0.002)	-0.005 (0.005)	-0.014^c (0.003)	-0.010^b (0.004)	-0.010^c (0.004)	-0.010^c (0.002)	-0.005^c (0.001)
Group 4: top quartile	-0.013^c (0.003)	-0.009^c (0.002)	-0.005^b (0.002)	-0.008^c (0.002)	-0.006 (0.005)	-0.009^c (0.003)	-0.007^a (0.004)	-0.006^a (0.004)	-0.006^c (0.002)	-0.004^c (0.001)
Patient Groups Based on Quartiles of Elixhauser Mortality Index Scores
Group 1: lowest quartile	-0.012^c (0.002)	-0.004^b (0.002)	-0.000 (0.002)	-0.006^c (0.002)	0.002 (0.005)	-0.009^c (0.002)	-0.005 (0.004)	-0.004 (0.003)	-0.005^c (0.002)	-0.002^c (0.000)
Group 2: second quartile	-0.009^c (0.003)	-0.005^b (0.002)	-0.002 (0.002)	-0.005^c (0.002)	-0.003 (0.006)	-0.008^b (0.003)	-0.010^b (0.004)	-0.003 (0.003)	-0.006^c (0.002)	-0.002^c (0.001)
Group 3: third quartile	-0.012^c (0.003)	-0.008^c (0.002)	-0.004^b (0.002)	-0.008^c (0.002)	-0.005 (0.004)	-0.005 (0.004)	-0.007^a (0.004)	-0.008^b (0.003)	-0.007^c (0.002)	-0.004^c (0.001)
Group 4: top quartile	-0.013^c (0.003)	-0.014^c (0.002)	-0.007^c (0.002)	-0.010^c (0.002)	0.003 (0.004)	-0.015^b (0.007)	-0.010^a (0.005)	-0.011^c (0.004)	-0.012^c (0.003)	-0.008^c (0.001)

Notes: Robust standard errors in parentheses. All standard errors are clustered at the hospital level
All models control for patient and hospital attributes and year fixed effects
^aSignificant at 0.10 level
^bsignificant at 0.05 level
^csignificant at 0.01 level

Back to article page

ISSN: 1472-6963

Contact us

General enquiries: journalsubmissions@springernature.com

BMC Health Services Research

Contact us