Rheumatology referral patterns.

Area of Science:

• Rheumatology
• Health Services Research
• Healthcare Management

Background:

• Understanding referral patterns and diagnostic accuracy is crucial for optimizing specialist consultations.
• Group model Health Maintenance Organizations (HMOs) have unique structures that may influence patient care pathways.
• Previous studies have focused on fee-for-service models, necessitating research into HMO-specific rheumatology practices.

Purpose of the Study:

• To characterize patients referred for rheumatology consultation within a group model HMO.
• To evaluate the diagnostic accuracy of initial referrals and the impact of specialist consultation.
• To compare rheumatology practice patterns in an HMO setting versus traditional fee-for-service models.

Main Methods:

• Retrospective analysis of 612 patient consultations in 1986.
• Evaluation of patient demographics, referral sources, and presumptive diagnoses.
• Comparison of initial diagnoses with final diagnoses determined by rheumatology specialists.

Main Results:

• Average patient age was 52 years, with females comprising nearly 75% of referrals.
• Only 44% of referrals had a presumptive diagnosis, with over 50% of these being revised by specialists.
• HMO rheumatologists managed a higher proportion of complex cases (e.g., connective tissue diseases, fibromyalgia) and fewer common conditions (e.g., osteoarthritis, gout) compared to fee-for-service practices.

Conclusions:

• HMO rheumatology consultations add significant value by refining diagnoses and managing complex conditions.
• The group model HMO structure, prohibiting self-referral, appears to direct more challenging cases to rheumatology specialists.
• HMOs significantly alter referral and practice patterns compared to fee-for-service systems, impacting the management of rheumatologic diseases.