San Francisco
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Location: San Francisco
Topic: Preterm among multiple deliveries
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Preterm among multiple deliveries: San Francisco, 2003-2013

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• The preterm birth rate among multiple deliveries in San Francisco was 58.1% in 2013. 
• Between 2003 and 2013, multiple births in San Francisco increased nearly 3%, from 3.8% to 3.9% of live births. 


  • Preterm is less than 37 completed weeks gestation.
  • Multiple deliveries include twin, triplet and higher order deliveries.


  • National Center for Health Statistics, final natality data.
  • Retrieved October 09, 2015, from