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Table 2 Summary of vaccine effectiveness and population impact results

From: Impact of a vaccination programme in children vaccinated with ProQuad, and ProQuad-specific effectiveness against varicella in the Veneto region of Italy

Vaccine effect VE 95% CI
Direct effectiveness
 Crude 0.93 (0.90–0.95)
 Adjusted 0.94 (0.91–0.95)
Total effect 0.97 (0.96–0.98)
Indirect effect 0.43 (0.35–0.50)
Overall effect 0.90 (0.89–0.91)
  1. VE please define, CI confidence interval