| Variables | Frequent NSAIDs users | Controls | X2 | P-value |
| Age in years | Frequency (%) | Frequency (%) |
|
|
| 20 - 29 30 - 39 40 - 49 50 - 59 60 - 69 >70 | 9 (9) 23 (23) 29 (29) 24 (24) 5 (5) 10 (10) | 14 (14) 20 (20) 24 (24) 26 (26) 9 (9) 8 (8) | 0.05
| 0.55
|
| Sex |
|
|
|
|
| Males | 49 | 49 | 0.05 | 0.57 |
| Females | 51 | 51 |
|
|