This indicator compares the odds of mortality within 30 days of admission for patients admitted at the weekend (Saturday and Sunday) to the odds of mortality within 30 days of admission for patients admitted midweek (Tuesday, Wednesday and Thursday). Corresponding results comparing patients admitted during the transition period (Monday and Friday) to patients admitted midweek are also provided as contextual information, along with results including only emergency admissions. The results are presented as odds ratios.
The methodology used in the analysis presented here was developed by University Hospitals Birmingham NHS Foundation Trust. It is based on the methodology presented in Freemantle et al. (Freemantle N, Ray D, Mcnulty D, et al. Increased mortality associated with weekend hospital admission: a case for expanded seven day services? BMJ 2015; 351: h4596) with some modifications to facilitate the measurement of variation in mortality outcomes for patients admitted at the weekend compared to those admitted during the week at the level of individual hospital trusts.
From April 2020, the Department of Health and Social Care (DHSC) is no longer commissioning NHS Digital to produce these indicators. Therefore, no further publications in this series are planned.
Notes:
1. There is a shortfall in the number of records for Tameside and Glossop Integrated Care NHS Foundation Trust (trust code RMP) and University College London Hospitals NHS Foundation Trust (trust code RRV) meaning that results for these trusts are based on incomplete data and should therefore be interpreted with caution.
2. From this publication onwards, the adjustment for deprivation uses the 2019 version of the Index of Multiple Deprivation (IMD). Previous releases of this indicator used the 2015 version. Further information is available in the statement of methodological changes (see Resources).
3. The following mergers took place on 1st October 2019: Cumbria Partnership NHS Foundation Trust (trust code RNN) merged with North Cumbria University Hospitals NHS Trust (trust code RNL). The new trust is called North Cumbria Integrated Care NHS Foundation Trust (trust code RNN). Aintree University Hospital NHS Foundation Trust (trust code REM) merged with Royal Liverpool and Broadgreen University Hospitals NHS Trust (trust code RQ6). The new trust is called Liverpool University Hospitals NHS Foundation Trust (trust code REM). However, as we received notification of these changes after data processing for this publication began, separate indicator values have been produced for this publication. The next publication in this series will reflect the updated organisation structures.
4. Further information on data quality can be found in the Seven-day Services background quality report, which can be downloaded from the ‘Resources’ section of the publication page. Further guidance on the interpretation of the indicators is also available to download from that page.
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