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Mortality from meningococcal disease by day of the week: English national linked database study
Michael J Goldacre1, Jenny J Maisonneuve
1Unit of Health-Care Epidemiology, Department of Public Health, Oxford University, Old Road Campus, Headington, Oxford, UK. michael.goldacre@dph.ox.ac.uk
Background:
There are concerns that quality of medical care may be poorer on weekends than weekdays. Invasive meningococcal disease, comprising septicaemia and meningitis, is often life threatening unless it is immediately and effectively treated regardless of day of the week. We test the hypothesis that numbers of deaths from meningococcal disease outside hospital without admission, and case fatality rates (CFRs) following admission, did not differ between weekends and weekdays.
Methods:
Analysis of linked hospital and mortality data, England, 1999-2010.
Results:
The study comprised 19 729 people. There was no significant difference between days of the week in the number of deaths outside hospital in people who never reached hospital care. Of people who were admitted, CFRs for weekend and weekday admissions were the same: 4.9% (262/5315) on weekends and 4.9% (678/13 798) on weekdays. We undertook sensitivity analyses and analysed multivariate models but, however the data were analysed, the result of no 'weekend effect' remained.
Conclusions:
There are few, if any, other acute diseases in which the difference in mortality outcome between no treatment and effective treatment is so great and unequivocally related to care itself. There was no evidence of excess deaths from meningococcal disease associated with weekend care.
Insights
This study found no difference in deaths from meningococcal disease between weekends and weekdays. Case fatality rates for admitted patients were also identical, indicating no "weekend effect" on mortality outcomes.
Area of Science:
- Public Health
- Infectious Disease Epidemiology
- Healthcare Quality Research
Background:
- Concerns exist regarding potential disparities in medical care quality between weekdays and weekends.
- Invasive meningococcal disease (IMD) requires immediate and effective treatment irrespective of the day of the week to prevent life-threatening outcomes.
Purpose of the Study:
- To investigate whether there is a
- weekend effect
- on mortality outcomes for invasive meningococcal disease.
- To compare deaths outside hospital and case fatality rates (CFRs) for IMD between weekends and weekdays.
Main Methods:
- Analysis of linked hospital admission and mortality data in England.
- Data spanned a 12-year period from 1999 to 2010.
- Inclusion of 19,729 individuals diagnosed with invasive meningococcal disease.
Main Results:
- No significant difference was observed in the number of deaths occurring outside hospital between weekend and weekday cases.
- The case fatality rate for patients admitted to the hospital was identical for weekend (4.9%) and weekday (4.9%) admissions.
- Sensitivity analyses and multivariate modeling confirmed the absence of a weekend effect on mortality.
Conclusions:
- The study found no evidence of increased mortality from invasive meningococcal disease associated with weekend hospital care.
- Effective and timely medical treatment is crucial for improving survival rates in IMD, regardless of admission day.
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