E. Papiernik et al., SOCIAL-GROUPS AND PREVENTION OF PRETERM BIRTHS IN A POPULATION OF TWIN MOTHERS, Journal of perinatal medicine, 24(6), 1996, pp. 669-676
Prenatal care was equally distributed to all twin pregnant women of th
e district of Haut de Seine in France in 1989-91, without differences
by socio-economic level. No difference in rates of preterm births and
very early preterm births (26-31 weeks) was measured by socio-economic
level among twin pregnancies.