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Related Experiment Videos

Understanding hospital referral rates: a user's guide.

M O Roland1, J Bartholomew, D C Morrell

  • 1Cambridge University School of Clinical Medicine, Addenbrooke's Hospital.

BMJ (Clinical Research Ed.)
|July 14, 1990
PubMed
Summary

Calculating general practitioners' referral rates requires careful consideration of denominators, such as consultations for individuals and practice list size for groups. Reliable interpretation necessitates methods to distinguish systematic from random variation, ensuring valid quality of care assessments.

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Area of Science:

  • Health Services Research
  • General Practice
  • Healthcare Quality

Background:

  • Accurate interpretation of general practitioners' (GP) referral rates is crucial for understanding healthcare resource utilization.
  • Previous methods for calculating referral rates may not adequately account for variations in practice and patient populations.
  • Ensuring the validity and reliability of referral data is essential for quality improvement initiatives.

Purpose of the Study:

  • To investigate the impact of different calculation methods on GP referral rates.
  • To provide guidelines for the reliable and valid interpretation of GP referral data.
  • To develop a method for distinguishing systematic from random variation in referral rates.

Main Methods:

  • Analysis of detailed referral data from a single practice.

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  • Comparison of referral rates using different denominators (consultations vs. registered patients).
  • Development of a statistical method to differentiate systematic and random variations in referral data.

    • Main Results:

    • Referral rates for individual GPs should be based on consultations, while practice-level rates can use list size.
    • Controlling for patient age and sex is often unnecessary, but case mix adjustment may be needed for specialty referrals.
    • A method was developed to identify significant systematic variation in referral rates beyond random chance.

    Conclusions:

    • Adherence to 10 proposed guidelines can prevent misinterpretation of GP referral rates.
    • Reliable referral rate calculation is a prerequisite for assessing quality of care, although direct links are not yet established.
    • Further research may be needed to refine methods for analyzing referral variability across specialties and over time.