The Lancet

aThe propensity score (PS) included information on cohabitation status, income, education and comorbidities (ie hypertension, atrial fibrillation, ischaemic heart disease, congestive heart failure, peripheral artery occlusive disease, cerebrovascular disease, diabetes, chronic obstructive pulmonary disease, chronic liver disease, coagulation defects, anaemia, cancer, epilepsy, Parkinson’s ... ................
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