Table 5 Distribution of the observed and expected number of individuals through QTL genotype groups and mortality phase
From: Biphasic survival analysis of trypanotolerance QTL in mice
Mortality phase | QTL genotype | MMU1 | MMU5 | MMU17 | |||
|---|---|---|---|---|---|---|---|
Obs(20) a | Exp(π)b | Obs(20) | Exp(π) | Obs(20) | Exp(π) | ||
Early | 13 | 11.6 | 23 | 21.7 | 3 | 15.5 | |
23 | 22.9 | 13 | 12.4 | 22 | 21.9 | ||
132 | 144.9 | 132 | 145.3 | 143 | 141.9 | ||
Total | 168 | 179.3 | 168 | 179.3 | 168 | 179.3 | |
Late | 181 | 182.4 | 185 | 186.3 | 135 | 122.5 | |
160 | 160.1 | 152 | 152.6 | 148 | 148.1 | ||
222 | 209.1 | 226 | 212.7 | 280 | 281.1 | ||
Total | 563 | 551.7 | 563 | 551.7 | 563 | 551.7 | |
Overall | 194 | 194 | 208 | 208 | 138 | 138 | |
183 | 183 | 165 | 165 | 170 | 170 | ||
354 | 354 | 358 | 358 | 423 | 423 | ||
Total | 731 | 731 | 731 | 731 | 731 | 731 | |
- aObs(20) refers to the number of mice that died before 20 days (early) versus 20 days or more (late).
- bExp(π) refers to the expected number of mice that died in the early versus late phase, as estimated from the model-based probabilities (π̂i). They are determined by summing the estimated probabilities for all observations in a particular QTL genotype group:
