Figure 1
From: Measuring maternal mortality: An overview of opportunities and options for developing countries
![Figure 1](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1741-7015-6-12/MediaObjects/12916_2007_Article_152_Fig1_HTML.jpg)
Opportunities and options for measuring maternal mortality. Colour key: Orange = longitudinal & continuous capture of deaths; Pink = cross-sectional capture; Green = mixed approach; Blue = no new capture of deaths. * Deaths actively sought by measurement option ** Deaths passively recorded, as dependent on relatives or health providers to notify death.