Does an ideal prototype of a twin mother exist?

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To evaluate the association of a set (or the lack thereof) of pre-gravid maternal features with a better outcome in terms of gestational age and birth weight of twins.


Analysis of a Slovenian population-based cohort of all dichorionic twin pairs born at ≥22 weeks during an 11-year period from 2002 to 2013. The independent variables included tall stature (≥170 cm), multiparity, and normal pregravid body mass index (BMI). The outcome variables included gestational age and total twin birth weight.


We studied 3232 dichorionic twins. Being “tall”, multiparous, and with a normal pregravid BMI was significantly associated with a higher total twin birth weight, more advanced gestational age, fewer sets with a total twin birth weight <3000 g, fewer births at ≤32 weeks, more pairs with a total twin birth weight >5000 g and more pairs born at ≥37 weeks. In contrast, women with the converse features had a significantly worse outcome. Being just multiparous was different only in the incidence of total twin birth weight >5000 g.


Maternal stature >170 cm, being multiparous, and having a normal pregravid BMI is association with improved outcomes in terms of gestational age and birth weight of twins.

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