Relative risk of consultation estimated by the Poisson model with before/after split for the three consultation groupings.

Results are relative to the baseline group which is females aged 0–4 in no clinical risk group and in Carstair's deprivation quintile 1 who did not receive a seasonal influenza vaccination in the previous season, had no ILIARI consultations in the previous season, prior to receiving the seasonal influenza vaccination in season 2009/10 and prior to receiving the H1N1 vaccination in season 2009/10 in week 1 (1st–7th October). RRs for the specific weeks are not presented. Analysis is based upon consultations up to 31st January 2010.ILI: Influenza-like illness, ILIARI: Influenza-like illness and acute respiratory infections (excluding asthma), ARI: All influenza-like illness and acute respiratory infections (including asthma).