Table 3:

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, 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 42 d of live birth or stillbirth, DAD or NACRS v. ORGD
Yes12222144
No931 679 2951 679 388
Total2151 679 3171 679 532
Agreement indicatorValue (95% CI)
 Cohen κ0.68 (0.62–0.74)
 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 agreement0.57 (0.50–0.63)
 Negative percent agreement1.00 (1.00–1.00)
Maternal death within 42 d of end of a recognized pregnancy, DAD, NACRS or CIHI-SDS v. ORGD
Yes13734171
No942 039 6522 039 746
Total2312 039 6862 039 917
Agreement indicatorValue (95% CI)
 Cohen κ0.68 (0.63–0.73)
 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 agreement0.59 (0.53–0.66)
 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.