Figure 31: Rates of intensive-care unit admissions with laboratory confirmed influenza A(H1N1)pdm09, Australia, 2009, by sex and age group This figure presents the rates of intensive-care unit admissions with laboratory confirmed influenza A(H1N1)pdm09 during 2009 by sex and age group. The figure highlights that overall just over half of admission to ICU were female, with rates of admissions generally higher among females aged less than 50 years. Rates of ICU admissions peaked among females in the 50-54 years age group, compared to the 55-59 years age group for males.