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Nationwide linkage analysis in Scotland implicates age as the critical overall determinant of mortality in ulcerative
R J Nicholls1, D N Clark, L Kelso
1Imperial College, St Mary's Campus, London, UK. j.nicholls@imperial.ac.uk
Insights
Hospital admission for ulcerative colitis (UC) patients over 65 is linked to high mortality. Older age, male gender, comorbidities, and longer hospital stays increase UC-related death risk.
Area of Science:
- Gastroenterology
- Clinical Epidemiology
- Public Health
Background:
- Recent data suggests higher mortality rates for medical versus surgical interventions in hospitalized ulcerative colitis (UC) patients.
- Understanding factors influencing mortality is crucial for improving patient outcomes.
Purpose of the Study:
- To investigate the determinants of UC-related mortality in Scotland.
- To identify patient characteristics and admission types associated with increased risk of death.
Main Methods:
- Utilized the national record linkage database in Scotland from 1998-2000.
- Determined 3-year mortality rates for 1078 patients across four admission types: elective/emergency colectomy and elective/emergency no colectomy.
- Employed multivariate analysis to identify independent predictors of mortality.
Main Results:
- Crude 3-year mortality rates varied by admission type, ranging from 5.6% (elective colectomy) to 16.0% (emergency no colectomy).
- Independent predictors of mortality included age over 50, male gender, comorbidity, extended length of stay (>15 days), and prior inflammatory bowel disease (IBD) admission.
- Age was the strongest determinant, with significantly lower mortality in patients under 50 compared to older age groups. Patients over 65 experienced mortality rates substantially higher than expected.
Conclusions:
- Hospital admission for UC patients aged over 65 is associated with a high risk of mortality.
- Management strategies should prioritize specialist care, early diagnostics, targeted medical therapy, and timely surgical consultation for elderly UC patients.
- Age emerges as the most significant factor influencing mortality in hospitalized UC patients.
Background:
Recent data associated higher mortality with medical rather than surgical intervention in patients with ulcerative colitis who require hospitalization.
Aim:
To examine factors influencing UC-related mortality in Scotland.
Method:
Using the national record linkage database 1998-2000, 3-year mortality was determined after four admission types: colectomy-elective or emergency; no colectomy-elective or emergency.
Results:
Of 1078 patients, crude 3-year mortality rates were: colectomy elective 5.6% (n = 177) and emergency 9.0% (100); no colectomy elective 9.8% (244) and emergency 16.0% (557). Using elective colectomy as reference, multivariate analysis [OR (95% CI)] showed that admission age >50 years [OR 5.46 (2.29-11.95)], male gender [OR 1.92 (1.23-3.02)], comorbidity [OR 2.2 (1.38-3.51)], length of stay >15 days [OR 2.04 (1.08-3.84)] and prior IBD admission [OR 1.66 (1.06-2.61)] were independently related to mortality. Age was the strongest determinant. No patient <30 years died. Mortality of patients aged <50 years [10/587 (1.7%)] was significantly lower than mortality of those aged 50-64 years [26/246 (10.6%)] (chi(2) = 32.91; P < 0.0000001) and >65 [96/245 (39.2%)] (chi(2) = 218.2; P < 0.0000001). For those patients aged more than 65 years, mortality in the four groups was 29.4%, 33.3%, 28.1% and 44.7%- all greater than expected in the Scottish population on assessment of standardized mortality ratios.
Conclusion:
Hospital admission in UC patients >65 is associated with high mortality. Management strategies should consider this by treatment in specialist units, early investigation, focused medical treatment and earlier surgical referral.
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