Table 4.
Effect of dementia subtypes on annual healthcare costs based on 2015 100% California Medicare fee-for-service data
| Variables | Parameter estimates | 95% Confidence Interval |
|---|---|---|
| Intercept | $12,185 | $11,562 – $12,841 |
| Dementia subtypes | ||
| AD | Ref | |
| LBD | 1.31 | 1.27 – 1.35 |
| VaD | 1.10 | 1.09 – 1.11 |
| FTD | 0.92 | 0.83 – 1.01 |
| NOS/Other/Mixed/Classified elsewhere | 1.10 | 1.06 – 1.14 |
| Age | 0.99 | 0.99 – 0.99 |
| Gender | ||
| Male | 1.09 | 1.05 – 1.14 |
| Female | Ref | |
| Race | ||
| White | Ref | |
| Black | 1.08 | 1.06 – 1.11 |
| Asian | 0.99 | 0.97 – 1.01 |
| Hispanic | 0.95 | 0.93 – 0.96 |
| North American Native | 0.88 | 0.80 – 0.96 |
| Other/Unknown | 1.09 | 1.05 – 1.14 |
| RUCA categories | ||
| Metropolitan | Ref | |
| Rural areas | 0.75 | 0.72 – 0.76 |
| Missing | 0.71 | 0.57 – 0.91 |
| Comorbidity score | ||
| 0 | Ref | |
| 1 | 2.65 | 2.60 – 2.70 |
| 2+ | 5.64 | 5.58 – 5.70 |
| Length of Medicare Part A&B coverage | ||
| Less than 12 months | Ref | |
| 12 months | 1.07 | 1.06 – 1.08 |