Bacterial Infections/complications; Pulmonary Embolism/microbiology; Venous Thromboembolism/microbiology; Acute Disease; Aged; Algorithms; Anti-Bacterial Agents/therapeutic use; Bacteremia/complications; Bacterial Infections/drug therapy; Bacterial Infections/epidemiology; Bacterial Infections/microbiology; Case-Control Studies; Community-Acquired Infections/complications; Cross Infection/complications; Cross Infection/drug therapy; Denmark/epidemiology; Female; Humans; Incidence; Inpatients/statistics & numerical data; Intraabdominal Infections/complications; Logistic Models; Male; Medical Records; Middle Aged; Odds Ratio; Outpatients/statistics & numerical data; Prevalence; Pulmonary Embolism/diagnosis; Pulmonary Embolism/drug therapy; Pulmonary Embolism/epidemiology; Respiratory Tract Infections/complications; Risk Assessment; Risk Factors; Skin Diseases, Bacterial/complications; Urinary Tract Infections/complications; Venous Thromboembolism/diagnosis; Venous Thromboembolism/drug therapy; Venous Thromboembolism/epidemiology