Table 1. Characteristics of H7N9 cases.
| Patient characteristics | Fatal cases | Non-fatal cases | Overall | p-value* |
|---|---|---|---|---|
| All cases | ||||
| Sample size, n (%) | 173 (44%) | 222 (56%) | 395 | - |
| Age (years); mean±SD | 63.0 ± 15.5 | 54.5 ± 16.6 | 58.2 ± 16.6 | <0.01 |
| Male, n (%) | 124 (72%) | 156 (70%) | 280 (71%) | 0.85 |
| Location, n (%) | 0.87 | |||
| Capital cities | 48 (28%) | 69 (31%) | 117 (30%) | |
| Non-capital cities | 66 (38%) | 73 (33%) | 139 (35%) | |
| Rural areas | 59 (34%) | 80 (36%) | 139 (35%) | |
| Underlying conditions1, n (%) | 93 (70%) | 96 (67%) | 189 (68%) | 0.58 |
| Cases with recorded exposure intervals | ||||
| Sample size, n (%) | 101 (50%) | 102 (50%) | 203 | - |
| Age (years); mean±SD | 60.6 ± 15.0 | 55.2± 17.3 | 57.9 ± 16.4 | 0.02 |
| Male, n (%) | 72 (71%) | 70 (69%) | 142 (70%) | 0.79 |
| Location, n (%) | 0.62 | |||
| Capital cities | 23 (23%) | 32 (31%) | 55 (27%) | |
| Non-capital cities | 40 (40%) | 31 (30%) | 71 (35%) | |
| Rural areas | 38 (38%) | 39 (38%) | 77 (38%) | |
| Underlying conditions2, n (%) | 61 (68%) | 53 (65%) | 114 (67%) | 0.87 |
*p-values calculated by t-tests for age, and chi-squared tests for proportions
1 119 patients had missing data regarding this information
2 33 patients had missing data regarding this information