Table 4:

Distribution of adverse events among 237 patients, grouped by factor to which the event was related, overall and by type of hospital

Factor related to eventPatients, no. (%)*RR (95% CI)
Overall
n = 237
Hospital type
Academic
n = 172
Community
n = 65
Surgical78 (32.9)64 (37.2)14 (21.5)1.7 (1.0–3.1)
Other clinical management47 (19.8)29 (16.9)18 (27.7)0.6 (0.4–1.1)
Medical procedure36 (15.2)30 (17.4)6 (9.2)1.9 (0.8–4.9)
Diagnostic error34 (14.4)19 (11.1)15 (23.1)0.5 (0.2–0.9)
Drug32 (13.5)25 (14.5)7 (10.7)1.4 (0.6–3.3)
Anaesthesia6 (2.5)5 (2.9)1 (1.5)1.9 (0.2–42.7)
Adverse event not covered elsewhere3 (1.3)2 (1.2)1 (1.5)0.8 (0.1–21.0)
Fluid2 (0.8)1 (0.6)1 (1.5)0.4 (0.0–13.8)
Fracture2 (0.8)2 (1.2)0 (0.0)1.9 (0.1–39.2)
None3 (1.3)3 (1.7)0 (0.0)2.7 (0.1–51.0)
Unable to determine13 (5.5)8 (4.7)5 (7.7)0.6 (0.2–2.1)
  • Note: CI = confidence interval, RR = relative risk.

  • * Reviewers selected as many categories as applied when classifying procedures and events. Percentages in this table are based on total number of patients in the section (e.g., academic, community); as a result, the sum of the percentages is not 100%.

  • Includes failure of labour to progress or fetal distress resulting in emergency cesarean delivery, inappropriate discharge and inappropriate treatment by primary care giver.