HILLINGDON Hospital said it has turned its performance around, despite figures suggesting that its death rate rockets at weekends.
Health research group Dr Foster said weekend deaths at the Hillingdon Hospitals NHS Foundation Trust rose by 27 per cent when compared to weekdays.
In a study for the Sunday Times, Dr Foster said it compiled the figures from data covering 2011-12.
It said it reached the figures using the Hospital Standardised Mortality Ratio (HSMR), which compared expected rates of death with the actual rate.
If the two are the same, the hospital scores 100. If the number of deaths was fewer than expected it received a lower score, and if higher the score rose above 100.
Dr Foster said the Hillingdon Trust had a week day death score of 102.5, but at weekends it climbed to 130.4.
A spokesman for the Trust, said: “The trust is aware that there were significant differences in the mortality rates for patients admitted as an emergency during the week compared with patients admitted as an emergency at the weekend during 2011/12
“A great deal of work was carried out to address this and as a result of various improvements, the HSMR has been reduced to 91.7 (up to and including March 2013). During 2012/13, the weekday versus weekend mortality rate was also tracked at trust board level and it was identified that there was no longer a difference between weekday and weekend mortality rates.
“The work undertaken to identify the reason behind the difference in 2011/12 included a detailed review of our hospital mortality data, which found that the trust had a lower than average palliative care and comorbidity coding, which may falsely elevate the HSMR, but that some specialities had a higher than expected HSMR.”