Trust results - National Bowel Cancer Audit

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
University College London Hospitals NHS Foundation Trust	78	8.3%	7.7%
Other trusts within the region: North Central and East London
Barking, Havering and Redbridge University Hospitals NHS Trust	151	12.1%	11.9%
Homerton University Hospital NHS Foundation Trust	35	8.2%	8.6%
North Middlesex University Hospital NHS Trust	30	6.4%	6.7%
Royal Free London NHS Foundation Trust	118	14.5%	13.6%

Trust	Number	Adjusted	Observed
University College London Hospitals NHS Foundation Trust	79	4.7%	2.5%
Other trusts within the region: North Central and East London
Barking, Havering and Redbridge University Hospitals NHS Trust	159	5.8%	6.3%
North Middlesex University Hospital NHS Trust	36	6.2%	5.6%
Royal Free London NHS Foundation Trust	129	1.9%	1.6%

Trust	Number	Adjusted	Observed
University College London Hospitals NHS Foundation Trust	88	12.4%	9.6%
Other trusts within the region: North Central and East London
Barking, Havering and Redbridge University Hospitals NHS Trust	142	30.9%	27.3%
Barts Health NHS Trust	89	19.3%	19.5%
Homerton University Hospital NHS Foundation Trust	53	12.9%	12.1%
North Middlesex University Hospital NHS Trust	49	42.2%	42.8%
Royal Free London NHS Foundation Trust	167	21.7%	23%
The Whittington Hospital NHS Trust	57	19.7%	22%

Trust	Number	Adjusted	Observed
University College London Hospitals NHS Foundation Trust	43	37.8%	34.9%
Other trusts within the region: North Central and East London
Barking, Havering and Redbridge University Hospitals NHS Trust	88	54.3%	55.7%
Barts Health NHS Trust	65	57.9%	56.9%
Homerton University Hospital NHS Foundation Trust	27	55.8%	55.6%
North Middlesex University Hospital NHS Trust	26	56.1%	61.5%
Royal Free London NHS Foundation Trust	86	44.5%	45.4%
The Whittington Hospital NHS Trust	23	48.4%	43.5%

University College London Hospitals NHS Foundation Trust

Explanatory Note