Fig 4.
Pooled effect size and 95% confidence intervals for immunosuppressed tumors versus immunocompetent tumors (Hypothesis 2), showing that SCC from immunosuppressed patients are more likely to carry HPV than SCC from immunocompetent patients (pooled ES 3.01, 95%CI 2.00–4.52, p<0.0001). I2 and Q statistics showed minimal evidence of heterogeneity (I2=28.4%, Q = 15.37 (d.f. = 11) p = 0.17).