Selection bias in HMOs and PPOs: a review of the evidence
Article Abstract:
Health maintenance organizations (HMO) and preferred provider organizations (PPO) attract more enrollees who are healthy among the nonelderly population. A study of the persons who seek care from providers suggest that selection effects determined whether individuals will enroll in an HMO or PPO. It was shown that individuals who declined 'first-time-offers' to join provider organizations were most likely to enroll at the next possible opportunity. It was also shown that HMOs and PPOs that have good reputations experience favorable selection among both nonelderly and elderly enrollees.
Publication Name: Inquiry
Subject: Health care industry
ISSN: 0046-9580
Year: 1995
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The impact of non-IPA HMOs on the number of hospitals and hospital capacity
Article Abstract:
A study has been conducted to determine the effects of managed care on the demand for hospital services. It is predicted that hospitals that rely on managed care will have reduced number of enrollees because managed care plans deliver a different style of care, despite having lower costs. On the other hand, the growth of managed care in the health care market is expected to reduce hospital occupancy. A study presenting the relationship between managed care and hospital occupancy rates using the Standard Metropolitan Statistical Area data is discussed.
Publication Name: Inquiry
Subject: Health care industry
ISSN: 0046-9580
Year: 1995
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Do HMOs make a difference? Consumer assessments of health care
Article Abstract:
The effects of health maintenance organizations on evaluation of health care services by patients are analyzed. Additional information on mathematical models use to analyze consumers' assessment of health care services is also included.
Publication Name: Inquiry
Subject: Health care industry
ISSN: 0046-9580
Year: 1999
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- Abstracts: Do HMOs make a difference? Data and methods. Do HMOs make a difference? Access to health care. Do HMOs make a difference? Introduction
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