Table 5:

Agreement between Canadian Institute for Health Information (CIHI) and Office of the Registrar General, Deaths (ORGD) records for maternal death within 365 days of a pregnancy outcome, including 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 365 d of live birth or stillbirth, DAD or NACRS v. ORGD
Yes27834312
No1971 679 0231 679 220
Total4751 679 0571 679 532
Agreement indicatorValue (95% CI)
 Cohen κ0.71 (0.82–0.91)
 Positive predictive value0.89 (0.86–0.93)
 Negative predictive value1.00 (1.00–1.00)
 Overall percent agreement1.00 (1.00–1.00)
 Positive percent agreement0.59 (0.54–0.63)
 Negative percent agreement1.00 (1.00–1.00)
Maternal death within 365 d of end of a recognized pregnancy, DAD, NACRS or SDS v. ORGD
Yes34647393
No2562 039 2682 039 524
Total6022 039 3152 039 917
Agreement indicatorValue (95% CI)
 Cohen κ0.70 (0.66–0.73)
 Positive predictive value0.88 (0.85–0.91)
 Negative predictive value1.00 (1.00–1.00)
 Overall percent agreement1.00 (1.00–1.00)
 Positive percent agreement0.57 (0.54–0.61)
 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.