title: Risks of operation in patients over 80.
mesh_terms: D000368:Aged; D001161:Arteriosclerosis / Q000150:complications; D002318:Cardiovascular Diseases / Q000150:complications; D002493:Central Nervous System Diseases / Q000150:complications; D002561:Cerebrovascular Disorders / Q000150:complications; D048909:Diabetes Complications; D005260:Female; D050723:Fractures, Bone / Q000601:surgery; D006331:Heart Diseases / Q000150:complications; D006615:Hip / Q000601:surgery; D006801:Humans; D006973:Hypertension / Q000150:complications; D007674:Kidney Diseases / Q000150:complications; D008107:Liver Diseases / Q000150:complications; D008297:Male; D009369:Neoplasms / Q000150:complications / Q000601:surgery; D012140:Respiratory Tract Diseases / Q000150:complications; D013514:Surgical Procedures, Operative / Q000401:mortality*; D013997:Time Factors; D014947:Wounds and Injuries / Q000150:complications / Q000601:surgery