G-Gravidity = Number of pregnancies, including any current pregnancies (regardless of current gestational age)
T-Term births = Number of pregnancies carried to 37+ weeks
P-Preterm births = Number of births between 20-37 weeks
A-Abortions/Miscarriages = number of pregnancies which ended in miscarriage or abortion. Include in parity if past 20 weeks.
L-Living children = the number of living children (this is where multiples count