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Table 3 Comparison of the infants’ characteristics and breastfeeding status of mothers with delayed versus normal lactogenesis ii onset (N = 94)

From: A prospective cohort study on lactation status and breastfeeding challenges in mothers giving birth to preterm infants

 

Delayed group

(n = 51)

Normal group

(n = 43)

χ2/U

df

p*

Infants characteristic

 Twin, n (%)

31 (60.8)

18 (41.9)

3.35

1

0.07

 Apgar score at 5′<7, n (%)

1 (2.2)

0

–

–

–

 Mechanical ventilation ≥3 days, n (%)

3 (5.9)

4 (9.3)

–

–

–

 Length of stay, day, median (IQR)

25.0 (16.0, 31.0)

25.0 (15.0, 40.0)

1027.50

N/A

0.60

 Age at discharge, weeks, median (IQR)

36.4 (35.6, 37.7)

36.1 (35.4, 37.0)

1175.00

N/A

0.55

Breastfeeding status

 Exclusive breastfeeding at discharge, n (%)

17 (33.3)

30 (69.8)

12.39

1

0.001

 Breastfeeding at 3 months of corrected age, n (%)1

25 (55.6)

32 (88.9)

10.66

1

0.001

 Exclusive breastfeeding at 3 months of corrected age, n (%)1

8 (17.8)

19 (52.8)

11.03

1

0.001

  1. Note. Data are represented as number (%) or median (IQR, interquartile); * p-value is based on the results of a Mann-Whitney U test for continuous variables and a chi-square test for categorical one. IQR = interquartile
  2. 1At 3 months of corrected age, 62 mothers and 81 infants participated in the follow-up; of them, 32 mothers (with 45 infants) had delayed lactogenesis II onset and 30 mothers (with 36 infants) had normal onset