Table 2 Meta-analysis of the association between HPV 16 and esophageal cancer by different variables
Variable | Number of studies | OR (95% CI) | Heterogeneity | |
|---|---|---|---|---|
Pfor Q test | I2(%) | |||
Region | Â | Â | Â | Â |
North | 4 | 8.15 (4.79, 13.86) | 0.084 | 54.9 |
Northwest | 4 | 4.36 (2.95, 6.44) | 0.357 | 7.2 |
South | 2 | 6.50 (3.12, 13.55) | 0.209 | 36.5 |
Year | Â | Â | Â | Â |
2005-2009 | 4 | 6.65 (4.07, 10.86) | 0.384 | 1.60 |
2010-2014 | 6 | 6.03 (3.72, 9.77) | 0.004 | 70.7 |
Specimen (1) | Â | Â | Â | Â |
PE | 7 | 5.48 (3.88, 7.52) | 0.169 | 34.0 |
FF | 3 | 8.48 (3.99, 9.41) | 0.072 | 61.9 |
HPV detection method | Â | Â | Â | Â |
L1 | 5 | 7.87 (4.71, 13.16) | 0.052 | 57.3 |
E6 | 5 | 4.68 (3.40, 6.44 ) | 0.473 | 0.00 |