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Availability and access in modern obstetric care: a retrospective population-based study
H M Engjom1, N-H Morken, O F Norheim
1Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway.
Objective:
To assess the availability of obstetric institutions, the risk of unplanned delivery outside an institution and maternal morbidity in a national setting in which the number of institutions declined from 95 to 51 during 30 years.
Design:
Retrospective population-based, three cohorts and two cross-sectional analyses.
Setting:
Census data, Statistics Norway. The Medical Birth Registry of Norway from 1979 to 2009.
Population:
Women (15-49 years), 2000 (n = 1,050,269) and 2010 (n = 1,127,665). Women who delivered during the period 1979-2009 (n = 1,807,714).
Methods:
Geographic Information Systems software for travel zone calculations. Cross-table and multiple logistic regression analysis of change over time and regional differences. World Health Organization Emergency Obstetric and Newborn Care (EmOC) indicators.
Main Outcome Measures:
Proportion of women living outside the 1-hour travel zone to obstetric institutions. Risk of unplanned delivery outside obstetric institutions. Maternal morbidity.
Results:
The proportion of women living outside the 1-hour zone for all obstetric institutions increased from 7.9% to 8.8% from 2000 to 2010 (relative risk, 1.1; 95% confidence interval, 1.11-1.12), and for emergency obstetric care from 11.0% to 12.1% (relative risk, 1.1; 95% confidence interval, 1.09-1.11). The risk of unplanned delivery outside institutions increased from 0.4% in 1979-83 to 0.7% in 2004-09 (adjusted odds ratio, 2.0; 95% confidence interval, 1.9-2.2). Maternal morbidity increased from 1.7% in 2000 to 2.2% in 2009 (adjusted odds ratio, 1.4; 95% confidence interval, 1.2-1.5) and the regional differences increased.
Conclusions:
The availability of and access to obstetric institutions was reduced and we did not observe the expected decrease in maternal morbidity following the centralisation.
