Table 1 General characteristics of study participants.

From: Growth and micronutrient status parameters of Nigerian preterm infants consuming preterm formula or breastmilk

Parameter

Formula-fed infants (N = 17)

Breastmilk-fed infants (N = 24)

P-value

Boys/girls

8/9

8/16

0.518*

Gestational age

33.3 ± 0.8

32.6 ± 0.7

0.026

Birthweight (g)

    All

1650.0 ± 233.9

1702.0 ± 167.1

0.438**

    Boys

1600.0 ± 223.6

1768.7 ± 166.8

0.747**

    Girls

1694.4 ± 246.8

1668.7 ± 162.1

0.098**

SGAa

    birth

5 (2 girls, 3 boys)

2 (2 girls)

0.077

Age at inclusion (weeks)

1.96 ± 0.8

2.0 ± 0.20

0.142**

Singletons

5

20

0.001*

Twins

1

2

Triplets

2

Quadruplets

1

Number of hospital days: mean ± SD (median; range)

    All

12.4 ± 2.8 (13; 5–17)

13.4 ± 7.8 (12; 5–47)

0.523**

    Boys

13.1 ± 2.0 (13; 11–17

12.0 ± 3.6 (12; 5–18)

0.456**

    Girls

11.8 ± 3.5 (14; 5–14)

14.2 ± 9.3 (12; 8–47)

0.344**

  1. Data are provided as mean ± SD, or absolute numbers. Z-score calculator based on the Fenton preterm growth chart.10
  2. SGA small for gestational age.
  3. *Fisher’s exact test, 2-sided; **Unpaired T-test.
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