Abstract
A retrospective study of 5551 grand multiparas was undertaken to collect statistically valid and clinically comparable information on the risks of pregnancy in this group with parity of 7 or greater. 60% of the women were nonwhite and two-thirds were 34 years or younger. Grand multiparas made up 4.3% of all obstetric patients seen during the 3-year (1958-1960) study in 13 collaborating hopsitals. A hemoglobin of less than 10 gm-percent occurred more than twice as often among grand multiparas; nonwhite women had more anemia than white women but excessive multiparity dramatically heightened the incidence of anemia among white women. Preeclampsia and hypertension occurred significantly (p.001) more often in grand multiparas than in women of lower parity. Abruption and previa of the placenta both occurred significantly (p.001) more often in grand multiparas. Uterine rupture (.28%) postpartum hemorrhage (5.3%) and transfusion required (6%) occurred nearly twice as often in grand multiparas. There was an absolute increase in the occurrence of breech and transverse presentations among grand multiparas and maternal morbidity was 50% greater. Maternal mortality was not increased.
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