facility are multiplied by the difference between the ICH patient facility’s composition versus the overall national patient composition. The score for each of the ICH CAHPS ratings and composite measures for the ICH facility in this example is calculated as 58% minus 56%, or 2%. For the rating of the kidney doctor for this facility, the top-box adjustment factor for males is 4.646 (males were 4.646% less likely to report a or in the rating of their kidney doctors). “9” “10” To obtain the top-box rating of the kidney doctor for the ICH facility in this example, we multiply 4.646 times 2% to get 9.29%. In this example, the adjustment for gender for the top-box rating of the kidney doctor for this ICH facility is 9.29%. As demonstrated in the formula and example above, whether the scores for a given facility are adjusted upward or downward for a given measure depends on the patient-mix adjustments and the patient mix of that facility relative to the national average patient mix. After each patient mix adjusted score is created for the ratings questions and facility’s each of the individual survey questions included in each of the three composites, the composite scores are formed from the average of these facility-level adjusted scores for the individual survey questions that comprise a given composite. This creates the semiannual patient-mix facility-level ratings and composite scores. The two most recent semiannual facility-level composite scores are then averaged to produce the current ICH CAHPS scores that are publicly reported. For public reporting purposes, the final adjusted ICH CAHPS score is rounded to the nearest integer and expressed as a percentage (e.g., 70%). Note that middle-box scores are computed by subtracting the sum of patients who provided top- and bottom-box scores from 100. Information presented in this document will allow ICH facilities to approximate the effect of patient mix adjustment on their ICH CAHPS Survey results. Exact replication of published ICH CAHPS Survey results is not possible because of the effects of data cleaning and small differences between an effect of semiannual patient mix adjustments and the averages presented here. For each future public reporting period, Tables 1–3 will be updated and posted on the ICH CAHPS website at . Table 1. ICH CAHPS Patient-Mix Adjustment Factors (Average “Top Box”
facility are multiplied by the difference between the ICH facility’s patient composition versus the overall national patient composition. The score for each of the ICH CAHPS ratings and composite measures for the ICH facility in this example is calculated as 58% minus 56%, or 2%. For the rating of the kidney doctor for this facility, the top-box adjustment factor for males is 4.646 (males were 4.646% less likely to report a “9” or “10” in the rating of their kidney doctors). To obtain the top-box rating of the kidney doctor for the ICH facility in this example, we multiply 4.646 times 2% to get 9.29%. In this example, the adjustment for gender for the top-box rating of the kidney doctor for this ICH facility is 9.29%. As demonstrated in the formula and example above, whether the scores for a given facility are adjusted upward or downward for a given measure depends on the patient-mix adjustments and the patient mix of that facility relative to the national average patient mix. After each facility’s patient mix adjusted score is created for the ratings questions and each of the individual survey questions included in each of the three composites, the composite scores are formed from the average of these facility-level adjusted scores for the individual survey questions that comprise a given composite. This creates the semiannual patient-mix facility-level ratings and composite scores. The two most recent semiannual facility-level composite scores are then averaged to produce the current ICH CAHPS scores that are publicly reported. For public reporting purposes, the final adjusted ICH CAHPS score is rounded to the nearest integer and expressed as a percentage (e.g., 70%). Note that middle-box scores are computed by subtracting the sum of patients who provided top- and bottom-box scores from 100. Information presented in this document will allow ICH facilities to approximate the effect of patient mix adjustment on their ICH CAHPS Survey results. Exact replication of published ICH CAHPS Survey results is not possible because of the effects of data cleaning and small differences between an effect of semiannual patient mix adjustments and the averages presented here. For each future public reporting period, Tables 1–3 will be updated and posted on the ICH CAHPS website at . Table 1. “Top Box” ICH CAHPS Patient-Mix Adjustment Factors (Average
ICHCAHPS_coefficients_for_2017_Surveys.docx