Skip to main content

Table 3 Number (%) of observed, expected and potentially avoidable patients with missing stage information, England, 2013

From: Characteristics of patients with missing information on stage: a population-based study of patients diagnosed with colon, lung or breast cancer in England in 2013

   Patients with missing information on stage at diagnosis
   Observed Expected a Potentially avoidable a
  Patients No. % No. 95% CI % No. 95% CI %
Colon cancer 21,522 3990 18.5 1433 578.7–2287.6 6.7 2557 470.2–1838.0 64.1
Non-small cell lung cancer 31,188 3935 12.6 1154 470.2–1838.0 3.7 2781 2096.9–3464.8 70.7
Breast cancer 41,657 6515 15.6 1689 838.2–2539.7 4.1 4826 3975.3–5676.8 74.1
  1. 95% CI 95% confidence interval
  2. a The expected number are those patients for whom stage would still be missing if all patients had had the same probability of being staged as the patients in the CCGs with the highest stage completeness. The difference between the observed and expected numbers is then the number of patients for whom missing data on stage was potentially avoidable. Numbers are rounded up to the integer