Table 1.
Agreement between a dementia diagnosis on the Minimum Data Set and hospital Medicare claim among hospitalized individuals with dementia, over time
| Year 2012 | Year 2014 | Year 2017 | ||||
|---|---|---|---|---|---|---|
| Number of hospitalizations among individuals with an MDS diagnosis of dementia | Diagnosis present on hospital claim (%) | Number of hospitalizations among individuals with an MDS diagnosis of dementia | Diagnosis present on hospital claim (%) | Number of hospitalizations among individuals with an MDS diagnosis of dementia | Diagnosis present on hospital claim (%) | |
| Total population | 437,921 | 76.9 | 369,193 | 83.1 | 343,958 | 86.3 |
| Age group | ||||||
| 66–75 | 64,281 | 69.0 | 57,473 | 74.8 | 58,751 | 79.2 |
| 76–85 | 175,782 | 77.3 | 145,416 | 83.5 | 136,745 | 86.6 |
| 86–95 | 197,858 | 79.0 | 166,304 | 85.6 | 152,730 | 86.3 |
| Sex | ||||||
| Male | 161,442 | 75.5 | 140,232 | 81.7 | 137,336 | 85.1 |
| Female | 276,479 | 77.6 | 228,961 | 83.9 | 213,003 | 86.9 |
| Race | ||||||
| White | 344,996 | 77.5 | 288,351 | 83.5 | 267,010 | 86.6 |
| Black | 72,666 | 75.0 | 62,967 | 81.9 | 59,176 | 85.3 |
| Asian | 7,378 | 71.9 | 6,693 | 80.7 | 7,279 | 84.2 |
| Hispanic | 12,881 | 74.8 | 11,182 | 81.2 | 10,493 | 85.0 |
Notes: Data came from the 2012, 2014, and 2017 inpatient MedPAR file and the MDS. Hospitalizations occurred within 120 days of an MDS assessment. In the MDS, dementia was defined based on a diagnosis of dementia and a Cognitive Function Scale score of at least 2. The hospital diagnosis of dementia was defined based on an ICD-9 or ICD-10 code.