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Table 1 Characteristics of infants and mothers, growth and neurodevelopmental assessment according to nutrition

From: Motor development related to duration of exclusive breastfeeding, B vitamin status and B12 supplementation in infants with a birth weight between 2000-3000 g, results from a randomized intervention trial

 

Duration of exclusive breastfeeding (Group)

P a

Characteristics of infants

0–1 month (Formula fed)

>1 month (Breastfed)

 

 Number at inclusion

32

48

 

 Number at 6 months

26

40

 

 Gender (M) [n (%)]

13 (50)

20 (50)

1

 Birth weight (g)

2458 ± 294b

2561 ± 224

0,12

 Gestational age (weeks)

36.9 (1.9)

37.3 (1.8)

0,42

 Premature [n (%)]

10 (39)

16 (40)

0,90

 SGA [n (%)]

7 (30)

13 (33)

0,63

 Twins [n (%)]

10 (39)

4 (10)

0,006

 Exclusive breastfeed (months)

0 (0)c

5 (3.4, 5.4)

0,02

 Folate and iron supplementation [n (%)]d

16 (62)

14 (35)

0,03

 Multivitamin supplementation [n (%)]e

11 (42)

12 (30)

0,31

Characteristics of mothers

   

 BMI prior to pregnancy (kg/m2)

23.7 (4.0)

22.5 (3.3)

0.19

 Higher education [n (%)]f

10 (42)

28 (70)

0,03

 Plasma MMA μmol/l at 6 months

0.15 (0.13–0.18)

0.18 (0.16–0.21)

0.01

 Plasma tHcy μmol/l at 6 months

7.17 (5.91–9.69)

7.86 (7.05–10.95)

0.10

Growth and neurodevelopment at 6 month

 Weight (g)

7256 ± 646

7019 ± 894

0,25

 Weight gain (g)g

4797 ± 750

4458 ± 907

0,10

 AIMS (score)

24 (22, 27)

21 (18, 25)

0,03

 AIMS (percentile)

50–75 (25–50, 75)

25–50 (25, 50)

0,01

 ASQ, communication (score)

48 (40, 50)

45 (35, 50)

0.35

 ASQ, gross motor (score)

40 (35, 49)

35 (25, 40)

0.01

 ASQ, fine motor (score)

50 (36, 60)

35 (30, 50)

0.06

 ASQ, problem solving (score)

50 (50, 60)

50 (40, 58)

0.22

 ASQ, personal-social (score)

45 (35, 50)

45 (35, 53)

0.66

  1. aProportions were compared by chi-square test. Means were compared by student’s t-test. Medians were compared by mann-Whitney U test
  2. bMean ± SD (all such values)
  3. cMedian; IQRs in parentheses (variable that was not normally distributed) (all such values)
  4. dFolic acid supplementation 0.1 mg daily from day 3 to 3 months
  5. eMultivitamin supplementation the first 3 weeks of life
  6. fMinimum 3 years of college or university education (one missing in each group)
  7. gWeight gain from birth to 6 months
  8. SGA Small for gestational age < 10percentila, AIMS Alberta Infant Motor Scale, AIMS was missing for 5 infants, ASQ Ages and stages questionnaires, ASQ was missing for 5 infants