Additional file 1: Table S1. of Estimates of hospitalization attributable to influenza and RSV in the US during 1997–2009, by age and risk status

Seasonal burden of hospitalization attributable to influenza and RSV by season in the US, 1997–2009 (respiratory broad outcome, any mention). 1Annual mean rate per 100,000 population; *Data included up to 31st March 2009; CI: confidential interval. Table S2. Number of hospitalizations attributable to influenza and RSV according to risk status and age in the US, 1997–2009 (respiratory broad outcome, any mention). SD: standard deviation; RSV: respiratory syncytial virus. (DOCX 42 kb

Additional file 1: Table S1. of Modelling estimates of age-specific influenza-related hospitalisation and mortality in the United Kingdom

Outcomes: hospitalisations (HES) and deaths (ONS). Table S2. Definition of risk factors; any mention of any of these codes placed the patient in the “high-risk” category. Table S3. Mean number of other hospitalisations due to non-respiratory diagnoses attributable to influenza in the United Kingdom. Table S4. Mean number of deaths due to respiratory diagnoses attributable to influenza in the United Kingdom. (DOCX 85 kb