5. Public Reporting as a Quality Improvement Strategy

Table H3. Hospital quantitative studies: Columns 14-18 of 18 (pages H-40 to H-51) (continued)
15. Results: KQ5
(Impact of Public
Author,
Report
16. Results: KQ6 (Impact of
18. Funder of
Year (QA) 14. Results KQ4: (Selection by Patients and Payers) Characteristics) Contextual Factors) 17. Summary/Conclusion Research/Report
Vladeck
1988 42
One-way ANOVA detected no significant differences in
occupancy rates between study periods among the
Not Studied Not Studied Based on these results, the None Listed
release of hospital mortality data
(Poor) three groups: F=1.046, p=0.357, df=2.67
in New York City did not impact
consumers in expected
No statistical significance and actual occupancy rates
directions. Moreover, based on
went in opposite directions than expected (i.e.,
ANOVA tests, there was no
Hospitals with higher-than-expected mortality rates
statistical significance among
experienced higher occupancy rates following public
release while those with lower-than-expected mortality
rates actually experienced slightly higher occupancy
rates. Those with as-expected mortality rates
experienced a relatively level occupancy rate, but there
the three groups.
Wang
2011 43
(Good)
Werner
2010 44
(Good)
was a very slight decrease.
HOSPITAL: Hospital Quarterly Volume (n=1469 hospital
quarters)
Mean volume:
All CABG cases - 76.5
Low-severity CABG cases - 45.5
High-Severity CABG cases - 30.3
High Mortality Flag:
All CABG cases -5.600
Low-severity CABG cases -4.477
High-Severity CABG cases -1.195
Low Mortality Flag:
All CABG cases 5.125
Low-severity CABG cases 4.669
High-Severity CABG cases 1.578
None None Public reporting led to decrease
in volume for unrated and poor
performing surgeons, but
interestingly, the volume of the
high performing surgeons does
not increase by an offsetting
amount. They do not find
statistically significant effect on
hospital volume once we control
for unobserved heterogeneity.
Severity analysis results in
similar results.
H-76
Not Reported
None None None Pennsylvania
Department of Health