Imperial College Healthcare NHS Trust

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Explanatory Note

Funnel plots display trust risk-adjusted outcomes for 90-day mortality, 30-day unplanned readmission, 2-year mortality and, for rectal cancer patients, 18-month stoma rate. The funnel regions represent the 95 per cent limit and the 99.8 per cent limit for trusts compared to the national average. Those trusts with results outside the outer (99.8 per cent) limit are considered potential outliers.

Risk adjustment is performed using the seven items listed under Data Quality as well as mode of admission (elective/emergency) and number of co-morbidities according to HES, and an interaction between age and distant metastases. Missing values are imputed using Multiple Imputation. The model for two-year mortality additionally includes interactions between follow-up time (0-3 months after surgery vs. 3-24 months after surgery) and all of the risk factors.

A stoma is considered to be reversed if a HES record with relevant code is identified with 18 months of the initial surgical procedure.

Trust Number Adjusted Observed
Imperial College Healthcare NHS Trust 106 14.9% 15.1%
Other trusts within the region: RM Partners
Chelsea and Westminster Hospital NHS Foundation Trust 40 12.2% 12.5%
Croydon Health Services NHS Trust 61 11.5% 11.5%
Epsom and St Helier University Hospitals NHS Trust 98 12% 11.2%
Kingston Hospital NHS Foundation Trust 97 11.2% 10.3%
The Hillingdon Hospitals NHS Foundation Trust 63 16.3% 15.9%
The Royal Marsden NHS Foundation Trust 28 8.4% 10.7%
Trust Number Adjusted Observed
Imperial College Healthcare NHS Trust 112 2.3% 2.7%
Other trusts within the region: RM Partners
Chelsea and Westminster Hospital NHS Foundation Trust 41 3.8% 4.9%
Croydon Health Services NHS Trust 66 1.9% 1.5%
Epsom and St Helier University Hospitals NHS Trust 106 6.4% 5.7%
Kingston Hospital NHS Foundation Trust 101 4.3% 4%
The Hillingdon Hospitals NHS Foundation Trust 65 1.3% 1.5%
Trust Number Adjusted Observed
Imperial College Healthcare NHS Trust 136 13.8% 12.5%
Other trusts within the region: RM Partners
Chelsea and Westminster Hospital NHS Foundation Trust 94 14.6% 18.4%
Croydon Health Services NHS Trust 55 36.7% 31.9%
Epsom and St Helier University Hospitals NHS Trust 115 15.7% 16.7%
Kingston Hospital NHS Foundation Trust 91 17.9% 18.7%
London North West Hospitals NHS Trust 187 14.9% 12.3%
St George's Healthcare NHS Trust 61 16.6% 14.2%
The Hillingdon Hospitals NHS Foundation Trust 72 13.9% 15.3%
The Royal Marsden NHS Foundation Trust 43 8.8% 4.7%