Figure 6

Standardised mortality ratios by quarter, with 95% confidence intervals. Probability of death estimated with UK APACHE, Royal Berkshire Hospital, 1 January 2003 to 30 June 2004
Standardised mortality ratios by quarter, with 95% confidence intervals. Probability of death estimated with UK APACHE, Royal Berkshire Hospital, 1 January 2003 to 30 June 2004