Table 1 Key demographic characteristics of mother-infant dyads from the CHILD cohort study included in the current analysis (n = 1022).

From: Multimodal machine learning for modeling infant head circumference, mothers’ milk composition, and their shared environment

 

Features

Average

n (%)

Mother

Age (years)

33.0 ± 4.2

 

Height (cm)

165.1 ± 7.5

 

Weight (kg)

66.8 ± 14.8

 

BMI (kg/m2)

24.5 ± 5.0

 

Overweight (%)

 

223 (22.5)

Obese (%)

 

123 (12.4)

Post-secondary education (%)

 

848 (90.6)

Race (%)

 Asian

 

210 (17.5)

 White

 

862 (71.9)

 First nations

 

46 (3.8)

 Other

 

79 (6.6)

Asthma (%)

 

240 (23.5)

Infant

Gestational age at delivery (weeks)

39.7 ± 1.2

 

Age at milk collection (months)

3.8 ± 1.1

 

Sex (% female)

 

543 (53.1)

Fever in first 3 months (%)

 

207 (20.3)

Cold with diarrhea in first 3 months (%)

 

7 (0.7)

Head circumference at 3 months (cm)

40.8 ± 2.0

 

Head circumference at 1 year (cm)

46.0 ± 1.9

 

Head circumference at 3 months (z-score)

0.0 ± 1.6

 

Head circumference at 1 year (z-score)

0.3 ± 1.4

 

Feeding

Breastfeeding duration (max 12 months)

12.0 [8.0, 12.0]

 

Exclusive breastfeeding duration (months)

4.5 [1.0, 5.0]

 

Used pump at 3 months (%)

 

790 (77.3)

Home

Carpet (%)

 

262 (25.6)

Pet (%)

 

479 (46.9)

  1. Values are n (%) or mean ± standard deviation or median [interquartile range]. By design, all dyads in this subset of the CHILD cohort breastfed for at least 3 months (the time of breast milk sample collection).
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