|  | Before outlier exclusion | After outlier exclusion | ||
---|---|---|---|---|---|
Outcome | Marker | No. of Studies | Adjusted OR (95% CI) | No. of Studies | Adjusted OR (95% CI) |
HPV positive | p53 (mutated) | 4 | 0.21(0.04-0.38) | 4 | 0.21(0.04-0.38) |
 |  |  |  |  | P = 0.015 |
HPV positive | p16 | 2 | 5.02(1.08-8.97) | 1 | 3.00(0.90-9.70) |
 | IHC |  |  |  | p = 0.181 |