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)
    Alabama 16.4
    Alaska 11.9
    Arizona 18.1
    Arkansas 15.2
    California 17.9
    Colorado 14.7
    Connecticut 19.1
    Delaware 19.3
    District of Columbia 16.4
    Florida 21.3
    Georgia 16.8
    Hawaii 16.5
    Idaho 12.3
    Illinois 16.8
    Indiana 15.5
    Iowa 13.5
    Kansas 15.0
    Kentucky 16.5
    Louisiana 16.8
    Maine 13.3
    Maryland 17.9
    Massachusetts 18.0
    Michigan 16.8
    Minnesota 12.1
    Mississippi 15.5
    Missouri 14.8
    Montana 11.4
    Nebraska 13.8
    Nevada 17.3
    New Hampshire 14.1
    New Jersey 21.2
    New Mexico 13.7
    New York 21.5
    North Carolina 16.5
    North Dakota 12.3
    Ohio 16.5
    Oklahoma 15.3
    Oregon 12.8
    Pennsylvania 18.0
    Rhode Island 19.3
    South Carolina 17.0
    South Dakota 12.4
    Tennessee 16.6
    Texas 17.1
    Utah 13.5
    Vermont 12.0
    Virginia 16.3
    Washington 14.1
    West Virginia 15.2
    Wisconsin 13.8
    Wyoming 13.3
    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.