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1
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shorter length of stay managed care
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mean length of stay for the managed care and the non-managed care group are compared
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2
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less variation length of stay managed care
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variation in length of stay for the managed care and the non-managed care group are compared
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3
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influence managed care at physician level
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the variation for the managed care group and the non-managed care group at physician level is compared to the variation for both groups at hospital level
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4
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shorter length of stay, less variation when more managed care patients per physician
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the regression coefficient for the proportion of managed care patients per physicians is examined as well as the covariance between this proportion and the variation in length of stay; both are expected to be negative
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5
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shorter length of stay, less variation when more managed care patients per hospital
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the regression coefficient for the proportion of managed care patients per hospital is examined as well as the covariance between this proportion and the variation in length of stay; both are expected to be negative.
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6
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fewer insurers per physician, less variation in length of stay
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the covariance between the number of insurers per physician and the variation in length of stay is examined and expected to be positive.
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7
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fewer insurers per hospital, less variation in length of stay
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the covariance between the number of insurers per hospital and the variation in length of stay is examined and expected to be positive.
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8
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fewer different hospitals per physician, less variation in length of stay
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the covariance between the number of hospitals per physician and the variation in length of stay is examined and expected to be positive.
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9
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DRGs that can be standardized show less variation
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variation for all DRGs is compared, most variation is expected in medical DRGs and DRGs with complications
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