Table 1.
Patient background in the OCNF and non-OCNF groups.
| Variable | OCNF (n = 26) | Non-OCNF (n = 121) | p value |
|---|---|---|---|
| Age (years) | 61.9 (22–88) | 50 (8–82) | 0.173 |
| Gender | 0.844 | ||
| Male (%) | 13 (50.0) | 57 (47.1) | |
| Female (%) | 13 (50.0) | 64 (52.9) | |
| Thrombocytopenia | 0.075 | ||
| Platelets < 15 × 104 μl | 5 (19.2) | 9 (7.4) | |
| Malignancy | 3 (11.5) | 3 (0.02) | 0.068 |
| Mortality rate (%) | 3 (11.5) | 0 (0.0) | 0.006 |
There was no significant difference in age, gender, thrombocytopenia, and coexisting malignant disease between the groups. Seven patients with OCNF treated at our hospital survived, but 3 patients with OCNF in previous reports died, giving a mortality rate of 11.5%. This rate was significantly higher in the OCNF group (p=0.006, Mann–Whitney U test).