Table 2. Egger’s and Begg’s test to measure the funnel plot asymmetric.
| Polymorphisms | ||||
| PTGS1 rs3842787 | No vs. Yes (CC) | No vs. Yes (CT+TT) | CC vs. CT+TT (No) | CC vs. CT+TT (Yes) |
| PE | 0.987 | 0.075 | 0.101 | 0.527 |
| PB | 0.602 | 0.117 | 0.117 | 0.602 |
| PTGS2 rs5275 | No vs. Yes (TT) | No vs. Yes (TC+CC) | TT vs. TC+CC (No) | TT vs. TC+CC (Yes) |
| PE | 0.415 | 0.071 | 0.844 | 0.066 |
| PB | 0.458 | 0.322 | 1.000 | 0.026 |
| PTGS2 rs20417 | No vs. Yes (GG) | No vs. Yes (GC+CC) | GG vs. GC+CC (No) | GG vs. GC+CC (Yes) |
| PE | 0.622 | 0.183 | 0.604 | 0.313 |
| PB | 0.881 | 0.293 | 0.652 | 0.293 |
| PTGS2 rs689466 | No vs. Yes (AA) | No vs. Yes (AG+GG) | AA vs. AG+GG (No) | AA vs. AG+GG (Yes) |
| PE | 0.847 | 0.150 | 0.680 | 0.155 |
| PB | 0.602 | 0.117 | 0.602 | 0.117 |
| PTGS2 rs2745557 | No vs. Yes (GG) | No vs. Yes (GA+AA) | GG vs. GA+AA (No) | GG vs. GA+AA (Yes) |
| PE | 0.379 | 0.065 | 0.431 | 0.768 |
| PB | 0.117 | 0.117 | 0.602 | 0.602 |
Abbreviations: No, non-NSAID users; Yes, NSAID users; PE: P for Egger’s test, PB; P for Begg’s test.
The bold value indicates a potential publication bias.