Table 3.
Mortality rate ratios of different patient groups compared to the US population (SMR) and directly to controls (RR)
| Dead | Person-years | Crude ratea | SMRa | RRb | |
|---|---|---|---|---|---|
| ALS | 101 | 408.8 | 0.247 | 23.35 (19.0–28.4) | 39.43 (28.23–55.08) |
| FTD | 33 | 356.4 | 0.093 | 3.47 (2.37–4.89) | 7.25 (4.69–11.21) |
| LBD | 29 | 238 | 0.122 | 2.42 (1.62–3.48) | 3.70 (2.34–5.85) |
| PD | 161 | 2,492 | 0.065 | 1.99 (1.69–2.32) | 3.51 (2.58–4.76) |
| Possible AD | 79 | 751.9 | 0.105 | 1.84 (1.45–2.29) | 2.47 (1.75–3.48) |
| Probable AD | 535 | 5,053.5 | 0.106 | 1.70 (1.56–1.85) | 2.73 (2.07–3.60) |
| MCI | 74 | 1,701.6 | 0.043 | 0.84 (0.66–1.05) | 1.61 (1.14–2.28) |
| Controls | 59 | 3,630.4 | 0.016 | 0.57 (0.43–0.73) | 1 |
a
SMR, adjusted for age, race, sex, and calendar time.
b
Mortality rate ratio of each group compared to controls. Adjusted for race, sex, and education; analysis via Cox regression with age as the time variable.