The objective of the preset study is to evaluate perinatal outcomes associated with twin pregnancies, stratified by severe maternal morbidity and order of birth. Secondary analysis of the WHO Multicountry Survey on Maternal and Newborn Health (WHOMCS), a cross-sectional study implemented in 29 countries. Data from 8568 twin deliveries were compared with 308,127 singleton deliveries. The occurrence of adverse perinatal outcomes and maternal complications were assessed. Factors independently associated with adverse perinatal outcomes were reported with adjusted PR (Prevalence Ratio) and 95%CI. Findings suggest that twin pregnancy is significantly associated with severe maternal morbidity and with worse perinatal outcomes, especially for the second twin.
World Health Organization. Neonatal and perinatal mortality: country, regional and global estimates. 2006. http://apps.who.int/iris/bitstream/10665/43444/1/9241563206_eng.pdf .
United Nations. The Millennium Development Goals Report 2015. http://www.un.org/millenniumgoals/2015_MDG_Report/pdf/MDG%202015%20rev%20(July%201).pdf .
United Nations. Sustain Dev Goals: 17 goals to transform our world. 2015. http://www.un.org/sustainabledevelopment/health.