A Common Denominator: Calculating Hospitalization Rates for Ambulatory Care–Sensitive Conditions in California
2011

Calculating Hospitalization Rates for Chronic Conditions in California

Sample size: 45000 publication Evidence: moderate

Author Information

Author(s): Camillia Lui, Steven P. Wallace

Primary Institution: University of California, Los Angeles (UCLA)

Hypothesis

Prevalence-adjusted hospitalization rates would highlight areas with higher ACSC burden.

Conclusion

More accurate measures of ACSC hospitalization rates are needed to improve the validity of assessments of primary care services.

Supporting Evidence

  • Hospitalization rates for ACSC serve as an indicator of access to and quality of primary care.
  • Counties with high hospitalization rates for hypertension did not change rankings when adjusting for prevalence.
  • Adjusting for disease prevalence significantly changed county rankings for congestive heart failure hospitalizations.

Takeaway

This study looked at how to better measure hospitalizations for conditions that can be treated without going to the hospital. It found that adjusting for how many people have these conditions gives a clearer picture of healthcare quality.

Methodology

The study combined California Health Interview Survey and hospital discharge data to calculate hospitalization rates for hypertension and congestive heart failure.

Potential Biases

Potential underdiagnosis of chronic conditions and sampling biases may limit the accuracy of findings.

Limitations

The study's reliance on self-reported data for disease prevalence may underestimate true prevalence, and hospitalization rates can vary widely by demographic factors.

Participant Demographics

Adults aged 18 years or older from California.

Statistical Information

Confidence Interval

95% CI

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