title: Calculating the risk of occurrence of an adverse outcome given a historical zero numerator.
authors: S A R
authors: SA
authors: Nouraei
mesh_terms: D016010:Binomial Distribution; D016001:Confidence Intervals; D006801:Humans; D007258:Informed Consent / Q000331:legislation & jurisprudence*; D016013:Likelihood Functions; D010038:Otorhinolaryngologic Diseases / Q000628:therapy*; D010353:Patient Education as Topic / Q000331:legislation & jurisprudence*; D011183:Postoperative Complications / Q000453:epidemiology*; D011336:Probability; D018570:Risk Assessment / Q000706:statistics & numerical data*