Effect of implementation of the MOREOB program on adverse maternal and neonatal birth outcomes in Ontario, Canada: a retrospective cohort study

Table 3 Effect of implementation of MORE^OB on study outcomes^a, Ontario, 2002–2014

Outcome	Primary analysis: Does not account for between-hospital heterogeneity	Secondary analysis: Accounts for between-hospital heterogeneity
WAOS, mean change (95% CI)	0.15 (−0.36 to 0.67)	0.16 (−0.41 to 0.74)
mAOI, OR (95% CI)	1.11 (1.06 to 1.17)**	1.09 (1.04 to 1.15)**
Maternal components
Maternal ICU admission	0.97 (0.75 to 1.25)	0.97 (0.75 to 1.25)
Unanticipated operative procedure	1.21 (1.05 to 1.39)**	1.26 (1.06 to 1.50)**
Blood transfusion	0.83 (0.69 to 1.00)	0.83 (0.69 to 1.00)
4th degree tear	1.36 (1.11 to 1.65)**	1.36 (1.11 to 1.65)**
Neonatal components
Neonatal death	0.97 (0.84 to 1.11)	0.84 (0.71 to 1.00)
Birth trauma	0.91 (0.75 to 1.10)	0.90 (0.75 to 1.10)
NICU admission	1.24 (1.17 to 1.32)**	1.13 (1.06 to 1.21)**

AOI Adverse Outcome Index, ICU Intensive Care Unit, MORE^OB Managing Obstetrical Risk Efficiently, NICU Neonatal Intensive Care Unit, WAOS Weighted Adverse Outcome Score
^aAll analyses adjusted for calendar time, hospital annual birth volume, hospital level of care, and maternal comorbidity index; calendar time was modelled using a restricted cubic spline function with five knots
**p < 0.05

ISSN: 1471-2393