Table 5.
Comparing mortality rates between aspirin users (≥180 days) and non-users in patients (n = 333) with a subdivision of Stages III and IV NPC in the N category.
| Stages III and IV a n = 333 |
Low-dose Aspirin | p-value | ||
|---|---|---|---|---|
| Non-Users b n = 268 |
Users ≥ 180 Days n = 65 |
Aspirin Non-Users vs. Users |
Comparing N0, N1 and 2, and N3 |
|
| N0 | <0.001 *** | |||
| Alive | 9 (52.9%) | 3 (75.0%) | 0.293 | |
| Dead due to NPC | 5 (29.4%) | 0 (0.0%) | ||
| Other Causes of Dead | 3 (17.6%) | 1 (25.0%) | ||
| N1 and 2 | ||||
| Alive | 105 (56.1%) | 37 (90.2%) | <0.001 *** | |
| Dead due to NPC | 59 (31.6%) | 3 (7.3%) | ||
| Other Causes of Dead | 23 (12.3%) | 1 (2.4%) | ||
| N3 | ||||
| Alive | 25 (39.1%) | 15 (75.0%) | 0.017* | |
| Dead due to NPC | 32 (50.0%) | 4 (20.0%) | ||
| Other Causes of Dead | 7 (10.9%) | 1 (5.0%) | ||
Abbreviation: vs. versus; a Stages IVa and IVb only; b One patient with missing data on N category of cancer. * p ≤ 0.05; *** p ≤ 0.001.