Table 2.
Baseline Characteristics of Patients with H7N9 Virus Infection in the Study Population
| Characteristics | Training Set | Validation Set | ||||
|---|---|---|---|---|---|---|
| Fatalities | Survivors | P-value | Fatalities | Survivors | P-value | |
| [N =56, Mean±SD or N (%)] | [N =115, Mean±SD or N (%)] | [N =17, Mean±SD or N (%)] | [N =39, Mean±SD or N (%)] | |||
| Age (years,) | 64.38 ± 14.15 | 54.99 ± 12.99 | <0.001a | 63.35 ± 17.02 | 55.23 ± 11.28 | 0.040a |
| Gender | ||||||
| Male | 38 (67.86) | 78 (67.83) | 0.997b | 11 (64.71) | 26 (66.67) | 0.887b |
| Female | 18 (32.14) | 37 (32.17) | 6 (35.29) | 13 (33.33) | ||
| Onset time (year) | ||||||
| 2013 | 10 (17.86) | 27 (23.48) | 0.257b | 3 (17.65) | 7 (17.95) | 1.000b |
| 2014 | 22 (39.29) | 29 (25.22) | 3 (17.65) | 8 (20.51) | ||
| 2015 | 11 (19.64) | 18 (15.65) | 4 (23.53) | 8 (20.51) | ||
| 2016 | 9 (16.07) | 30 (26.09) | 5 (29.41) | 10 (25.64) | ||
| 2017 | 4 (7.14) | 11 (9.56) | 2 (11.76) | 6 (15.39) | ||
| Incidence area(city) | ||||||
| Hangzhou | 36 (64.29) | 69 (60.00) | 0.589b | 8 (47.06) | 15 (38.46) | 0.548b |
| Outside of Hangzhou | 20 (35.71) | 46 (40.00) | 9 (52.94) | 24 (61.54) | ||
Notes: aIndependent samples t-test was used. bPearson Chi-square test was used. Significant P values are in bold type.
Abbreviations: SD, standard deviation.