Table 1.

Review inclusion criteria (PICO).

Population	All children, women and men.
Intervention	Pandemic vaccine during season 2009-2010.
Comparisons	No vaccination, placebo or other vaccines
Outcome	Safety – outcomes all  • Acute events  • Local adverse events  • Longterm events  • Systemic adverse events Safety – additional outcomes pregnant women  • Spontaneous abortion, foetal death, stillbirth, preterm birth (less than 37 weeks), pre-eclampsia and eclampsia  • Neonatal outcomes: congenital malformations (minor and major), neonatal death.
Study designs	Systematic reviews, health technology assessments