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. Author manuscript; available in PMC: 2014 Jun 28.
Published in final edited form as: BMJ Qual Saf. 2012 Nov 23;22(3):194–202. doi: 10.1136/bmjqs-2012-001360

Table 3.

Correlations between clinical outcomes within 30-days and average Yelp score

Outcome Correlation with percent
high Yelp score
p Value Correlation with percent
high ratings on HCAHPS
p Value
Mortality rate, MI −0.19 0.005 −0.13 0.052
Mortality rate, Heart Failure −0.01 0.89 0.01 0.85
Mortality rate, Pneumonia −0.14 0.028 −0.18 0.004
Readmissions, MI −0.17 0.011 −0.39 <0.001
Readmissions, Heart Failure −0.31 <0.001 −0.39 <0.001
Readmissions, Pneumonia −0.18 0.005 −0.27 <0.001

Hospitals with >5 Yelp ratings (n=270) were analysed. Weighted Pearson’s product moment correlation coefficients, using weights inversely proportional to the number of Yelp raters.

Data for 30-day mortality and readmission rates come from the Centre for Medicaid and Medicare Services public reporting website, HospitalCompare.hhs.gov.

HCAHPS, Hospital Consumer Assessment of Healthcare Providers and Systems; MI, myocardial infarction.