.. _2017_cause_neonatal_preterm:

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Neonatal preterm birth complications
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Disease Description
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Case definition in GBD 2017
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Preterm birth is defined as live birth before 37 completed weeks of gestation.
GBD 2017 further breaks down this cause into three sub-categories of
preterm birth, based on gestational age: extremely preterm (<28 weeks), very
preterm (28 to <32 weeks), and moderate to late preterm (32 to <37 weeks). These
categories are based on the World Health Organization (WHO) definition of
preterm birth.

.. todo::

   Discribe the neonatal preterm birth cause, which is 100% attributable to the
   :ref:`Low Birthweight and Short Gestation <2017_risk_lbwsg>` risk.