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Organizational and Financial Characteristics of Health Plans
Are They Related to Primary Care Performance?
Dana Gelb Safran, ScD;
William H. Rogers, PhD;
Alvin R. Tarlov, MD;
Thomas Inui, MD;
Deborah A. Taira, ScD;
Jana E. Montgomery, BA;
John E. Ware, PhD;
Charles P. Slavin, MCP
Arch Intern Med. 2000;160:69-76.
Background Primary care performance has been shown to differ under different models of health care delivery, even among various models of managed care. Pervasive changes in our nation's health care delivery systems, including the emergence of new forms of managed care, compel more current data.
Objective To compare the primary care received by patients in each of 5 models of managed care (managed indemnity, point of service, network-model health maintenance organization [HMO], group-model HMO, and staff-model HMO) and identify specific characteristics of health plans associated with performance differences.
Methods Cross-sectional observational study of Massachusetts adults who reported having a regular personal physician and for whom plan-type was known (n = 6018). Participants completed a validated questionnaire measuring 7 defining characteristics of primary care. Senior health plan executives provided information about financial and nonfinancial features of the plan's contractual arrangements with physicians.
Results The managed indemnity system performed most favorably, with the highest adjusted mean scores for 8 of 10 measures (P<.05). Point of service and network-model HMO performance equaled the indemnity system on many measures. Staff-model HMOs performed least favorably, with adjusted mean scores that were lowest or statistically equivalent to the lowest score on all 10 scales. Among network-model HMOs, several features of the plan's contractual arrangement with physicians (ie, capitated physician payment, extensive use of clinical practice guidelines, financial incentives concerning patient satisfaction) were signficantly associated with performance (P<.05).
Conclusions With US employers and purchasers having largely rejected traditional indemnity insurance as unaffordable, the results suggest that the current momentum toward open-model managed care plans is consistent with goals for high-quality primary care, but that the effects of specific financial and nonfinancial incentives used by plans must continue to be examined.
From the Health Institute, New England Medical Center (Drs Safran, Rogers, Tarlov, and Ware and Ms Montgomery); Departments of Medicine (Drs Safran and Tarlov) and Psychiatry (Dr Ware), Tufts University; Harvard School of Public Health (Drs Tarlov, Inui, and Ware); Harvard Medical School (Drs Inui and Taira); Harvard Pilgrim Health Care (Dr Inui); Cardiovascular Division, Beth Israel Deaconess Medical Center (Dr Taira); and Massachusetts Group Insurance Commission (Mr Slavin); Boston, Mass.
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