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Heat map of comorbid disease by age and ethnic group showing proportions within each ethnic group by age group. Obesity defined as BMI ≥ 30 kg/m2, HTN: hypertension, IHD: ischaemic heart disease, MI: myocardial infarction, CHF: congestive heart failure, PVD: peripheral vascular disease, HFRS: hospital frailty risk score.
