Parity: The Medical Term for Live Birth Count
Parity = number of pregnancies reaching viable gestational age (≥20 weeks or ≥500g), regardless of outcome (live birth or stillbirth).
- Expressed as a number + "P" (e.g., 2P = two viable births).
- Distinct from gravidity (total pregnancies).
- Example: G3P2 = 3 pregnancies, 2 viable births (one may be miscarriage/termination <20 weeks).
Parity informs obstetric risk assessment and delivery planning.
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