TABLE 2 .
Case fatality rates from yellow fever and cholera among U.S. Army troops in 1867a
| Disease and age of soldierb | No. of deaths/100 cases of disease in Caucasians(total no. of cases) | No. of deaths/100 cases of disease in non-Caucasians(total no. of cases) | Fold change in case fatalityrates (C/nC)c | Odds (95% confidence interval) of Caucasians versus non-Caucasians succumbing to disease |
|---|---|---|---|---|
| Yellow fever | ||||
| Less than 20 yr | 30.0 (237) | 12.1 (33) | 5.67*** | 15.97 (6.02−55.30) |
| 20−29 yr | 30.2 (770) | 16.3 (123) | 1.86** | 2.23 (1.38−3.79) |
| Cholera | ||||
| Less than 20 yr | 22.2 (45) | 50.0 (6) | 0.44 | 0.29 (0.05−1.75) |
| 20−29 yr | 37.8 (185) | 39.1 (87) | 0.97 | 0.95 (0.56−1.61) |
a
Data from reference 15.
b
The average age of soldiers less than 20 years old was not given in the primary source.
c
The case fatality rate in Caucasians (C) to the case fatality rate in non-Caucasians (nC) is shown. Race was found to be a significant predictor of outcome in the logistic regression model as follows: **, P < 0.01; ***, P < 0.001.