Average Number of Contact Days with the Health Care System per Beneficiary, by Cohort
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    Average Number of Contact Days with the Health Care System per Beneficiary, by Cohort
    (Cohort: All Beneficiaries; Year: 2012; Region Levels: State)
    New York 21.5
    Florida 21.3
    New Jersey 21.2
    Rhode Island 19.3
    Delaware 19.3
    Connecticut 19.1
    Arizona 18.1
    Pennsylvania 18.0
    Massachusetts 18.0
    California 17.9
    Maryland 17.9
    Nevada 17.3
    Texas 17.1
    South Carolina 17.0
    Illinois 16.8
    Michigan 16.8
    Georgia 16.8
    Louisiana 16.8
    Tennessee 16.6
    Kentucky 16.5
    North Carolina 16.5
    Hawaii 16.5
    Ohio 16.5
    District of Columbia 16.4
    Alabama 16.4
    Virginia 16.3
    Mississippi 15.5
    Indiana 15.5
    Oklahoma 15.3
    West Virginia 15.2
    Arkansas 15.2
    Kansas 15.0
    Missouri 14.8
    Colorado 14.7
    Washington 14.1
    New Hampshire 14.1
    Wisconsin 13.8
    Nebraska 13.8
    New Mexico 13.7
    Iowa 13.5
    Utah 13.5
    Wyoming 13.3
    Maine 13.3
    Oregon 12.8
    South Dakota 12.4
    Idaho 12.3
    North Dakota 12.3
    Minnesota 12.1
    Vermont 12.0
    Alaska 11.9
    Montana 11.4
    National Average 17.1
    90th Percentile 19.1
    50th Percentile 16.3
    10th Percentile 12.3
        • The denominator comprised the Medicare population age 65-99 on January 1, 2012 that was eligible for Medicare Parts A and B. Patients enrolled in risk-bearing HMOs at any time during the year were excluded. Age, gender, race, and eligibility were determined using the Denominator file.

        • The numerator consisted of contact days with the health care system—acute care hospital stays, ambulatory visits to clinicians, procedures, tests, and imaging—indicated by a claim in either the Medicare Provider Analysis and Review (MedPAR) file or the Carrier (Physician/Supplier Part B claims) file. If more than one claim occurred on the same date, the day was only counted once.

        • ADJUSTMENTS:
        • Rates were adjusted for age, sex, and race using the indirect method.


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    The Dartmouth Atlas of Health Care is based at The Dartmouth Institute for Health Policy and Clinical Practice and is supported by a coalition of funders led by the Robert Wood Johnson Foundation, including the WellPoint Foundation, the United Health Foundation, the California HealthCare Foundation, and the Charles H. Hood Foundation.