Table 1.

Characteristics of the participating women (n=100).

Age, years (median, range)	30 (19–39)
BMI at inclusion, kg/m2 (median, range)	22.1 (18.1–24.9)
Gestation at delivery, weeks (range)	40+1 (37+4–41+4)
Multiparous women	39 (39%)
Birth period January–March	25 (25%)
Birth period April–June	23 (23%)
Birth period July–September	27 (27%)
Birth period October–December	25 (25%)
Fetal birth weight, gram (median, range)	3565 (2510–4450)
Fetal sex, female	50 (50%)