Key result
Age, high BMI, and smoking predict frequent hospitalizations, with age linked to ~75% higher odds per decade.
Cohort (n=25,014)
Simple demographic and behavioral indicators, particularly increasing age, high BMI, and smoking, strongly predict the risk of future hospital usage over a decade.
OBJECTIVE: To quantify hospital use in a general population over 10 years follow-up and to examine related factors in a general population-based cohort. DESIGN: A prospective population-based study of men and women. SETTING: Norfolk, UK. PARTICIPANTS: 11,228 men and 13,786 women aged 40-79 years in 1993-1997 followed between 1999 and 2009. MAIN OUTCOMES MEASURES: Number of hospital admissions and total bed days for individuals over a 10-year follow-up period identified using record linkage; five categories for admissions (from zero to highest ≥ 7) and hospital bed days (from zero to highest ≥ 20 nights). RESULTS: Over a period of 10 years, 18,179 (72.7%) study participants had at least one admission to hospital, 13.8% with 7 or more admissions and 19.9% with 20 or more nights in hospital. In logistic regression models with outcome ≥ 7 admissions, low education level OR 1.14 (1.05 to 1.24), age OR per 10-year increase 1.75 (1.67 to 1.82), male sex OR 1.32 (1.22 to 1.42), manual social class 1.22 (1.13 to 1.32), current cigarette smoker OR 1.53 (1.37 to 1.71) and body mass index >30 kg/m² OR 1.41 (1.28 to 1.56) all independently predicted the outcome with p<0.0001. Results were similar for those with ≥ 20 hospital bed days. A risk score constructed using male sex, manual social class, no educational qualifications; current smoker and body mass index >30 kg/m², estimated percentages of the cohort in the categories of admission numbers and hospital bed days in stratified age bands with twofold to threefold differences in future hospital use between those with high-risk and low-risk scores. CONCLUSIONS: The future probability of cumulative hospital admissions and bed days appears independently related to a range of simple demographic and behavioural indicators. The strongest of these is increasing age with high body mass index and smoking having similar magnitudes for predicting risk of future hospital usage.
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Luben et al. (2016) conducted a cohort in General population (n=25,014). Demographic and behavioural indicators (e.g., increasing age, smoking, high BMI) vs. Reference groups was evaluated on ≥ 7 hospital admissions over a 10-year follow-up period (OR 1.75, 95% CI 1.67 to 1.82, p=<0.0001).
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