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  • Title: Cost-sharing and the utilization of clinical preventive services.
    Author: Solanki G, Schauffler HH.
    Journal: Am J Prev Med; 1999 Aug; 17(2):127-33. PubMed ID: 10490055.
    Abstract:
    BACKGROUND: Little is known about the effect of different forms of patient cost-sharing on the utilization of clinical preventive services or if the effect varies by type of health plan. OBJECTIVES: To assess empirically the relationships between the utilization of recommended preventive services and different forms of patient cost-sharing and how the effect is mediated by type of preventive service (counseling, blood pressure, Pap smear, mammogram), type of cost-sharing (deductibles/coinsurance, copayments), and type of health plan (HMO, PPO/indemnity plan). RESEARCH DESIGN: Sixteen logit models were estimated to assess variation in receiving recommended preventive care as a function of cost-sharing within plan type. SUBJECTS: A sample of 10,872 employees, aged 18 to 64 years, of seven large companies served by 52 health plans with diverse cost-sharing arrangements who responded to the Pacific Business Group on Health, Health Plan Value Check Survey (response rate, 50.3%). MEASURES: Receipt of recommended preventive care was based on the U.S. Preventive Services Task Force Guidelines. The effect of cost-sharing was measured as the percentage change in the probability of receiving recommended preventive care in the cost-sharing group compared to the non cost-sharing group. RESULTS: The negative effect of patient cost-sharing was greatest on preventive counseling in PPO/indemnity plans (-15%) and on mammograms in all health plan types (-9%-10%). The effect on Pap smears was negative (-8%-10%) for deductibles/coinsurance in PPO/indemnity plans and copayments in HMOs. The effect of cost-sharing on blood pressure was mixed. Deductibles/coinsurance had a greater negative effect than copayments. CONCLUSIONS: Eliminating patient cost-sharing for selected preventive services may be a relatively easy and effective means of increasing utilization of recommended clinical preventive care.
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