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. 2022 Jan 24;61(4):2167–2182. doi: 10.1007/s00394-021-02788-6

Table 1.

Characteristics of lactating mothers and their infants having FA data on at least one point

Unit Level Number of participants
n of mothers at V1 (day 2) 323
n of subjects having FA data on at least one point 293
Unit Level Mean (SD)
Country n (%) Spain 12 (4.1)
France 85 (29.0)
Italy 9 (3.1)
Norway 10 (3.4)
Portugal 96 (32.8)
Romania 42 (14.3)
Sweden 39 (13.3)
Mean age of mother (SD) years 31.2 (4.3)
Infant Gender n (%) F 133 (45.4)
M 160 (54.6)
Mean parity (SD) 1.34 (0.6)
Unique child (%) Unique 216 (66.9)
With/siblings 107 (33.1)
Mode of delivery n (%) Caesarean 76 (25.9)
Vaginal 217 (74.1)
Mean infant gestational age (SD) weeks 39.3 (1.2)
Mean pre-pregnancy weight (SD) kg 61.71 (8.11)
Mean pre-pregnancy height (SD) cm 164.82 (6.13)
Mean pre-pregnancy BMI (SD) kg/m2 22.71 (2.67)
Mean infant body weight at birth (SD) kg 3.35 (0.47)
Mean infant body length at birth (SD) cm 49.91 (2.14)
Mean infant head circumference at birth (SD) cm 34.47 (1.48)

Data are expressed as mean and standard deviation (SD)

BMI body max index

1Pre-pregnancy BMI (ppBMI) was categorized based on the WHO guidelines into normal (NW: 18.5–24.9 kg/m2) and overweight (OW: 25.0–29.9 kg/m2)