Table 2:

Agreement between Canadian Institute for Health Information (CIHI) and Office of the Registrar General, Deaths (ORGD) records for maternal death within 42 days of a pregnancy outcome, excluding ORGD pregnancy-related deaths not matched to a maternal death within CIHI databases in the numerator and denominator during percent agreement calculations

CIHIORGDTotal
YesNo
Maternal death within 42 d of live birth or stillbirth, DAD or NACRS v. ORGD
Yes12222144
No161 679 2951 679 311
Total1381 679 3171 679 455
Agreement indicatorValue (95% CI)
 Cohen κ0.87 (0.82–0.91)
 Positive predictive value0.85 (0.79–0.91)
 Negative predictive value1.00 (1.00–1.00)
 Overall percent agreement1.00 (1.00–1.00)
 Positive percent agreement0.88 (0.83–0.94)
 Negative percent agreement1.00 (1.00–1.00)
Maternal death within 42 d of end of recognized pregnancy, DAD, NACRS or SDS v. ORGD
Yes13734171
No262 039 6412 039 667
Total1632 039 6752 039 838
Agreement indicatorValue (95% CI)
 Cohen κ0.82 (0.78–0.87)
 Positive predictive value0.80 (0.74–0.86)
 Negative predictive value1.00 (1.00–1.00)
 Overall percent agreement1.00 (1.00–1.00)
 Positive percent agreement0.84 (0.78–0.90)
 Negative percent agreement1.00 (1.00–1.00)

  • Note: CI = confidence interval, DAD = Discharge Abstract Database, NACRS = National Ambulatory Care Reporting System, SDS = Same Day Surgery.