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. 2021 Jul 13;114(4):1523–1534. doi: 10.1093/ajcn/nqab222

TABLE 1.

Characteristics of participants1

Characteristics Fatty acid analysis No milk sample available
Sex, female 62/114 (54.4) 9/11 (81.8)
Birth weight, g 884.9 ± 19.1 914.5 ± 59.7
Gestational age at birth,2 wk 27.7 ± 0.2 27.7 ± 0.6
Multiple birth status 40/114 (35.1) 4/11 (36.4)
Small for gestational age 28/114 (24.6) 1/11 (9.1)
Received antenatal steroids 102/114 (89.5) 8/11 (72.7)
SNAP-II score3 13.3 ± 1.0 17.6 ± 5.1
Apgar score at 5 min 7.3 ± 0.2 7.4 ± 0.5
Any donor milk intake 52/114 (45.6) 11/11 (100.0)*
Randomization group HMBF 59/114 (51.8) 5/11 (45.5)
Morbidity composite4 50/114 (43.9) 2/11 (18.2)
Brain injury5 16/114 (14.0) 3/11 (27.3)
Cesarean delivery 73/114 (64.0) 4/11 (36.4)
Season of delivery
 Winter 35/114 (30.1) 5/11 (45.5)
 Spring 31/114 (27.2) 0/11 (0.0)
 Summer 24/114 (21.1) 3/11 (27.3)
 Fall 24/114 (21.1) 3/11 (27.3)
Mother's age, y 33.1 ± 0.5 35.1 ± 2.3
Mother's education
 High school or less 17/113 (15.0) 2/10 (20.0)
 College or vocational diploma 39/113 (34.5) 7/10 (70.0)
 Baccalaureate 40/113 (35.4) 1/10 (10.0)
 Postbaccalaureate 17/113 (15.0) 0/10 (0.0)
Mother's ethnicity
 Eastern or Western European 41/113 (36.3) 1/10 (10.0)
 East or Southeast Asian 23/113 (20.4) 4/10 (40.0)
 South or West Asian 21/113 (18.6) 1/10 (10.0)
 African or Caribbean 24/113 (21.2) 2/10 (20.0)
 Other (including Latin American and mixed backgrounds) 4/113 (3.5) 2/10 (20.0)
Maternal parity >1 41/114 (36.0) 5/11 (45.5)
Maternal BMI, kg/m2 25.5 ± 0.4 29.1 ± 1.0
Maternal smoking 7/114 (6.1) 3/11 (27.3)*
Language spoken at home
 English 57/101 (56.4) 4/8 (50.0)
 Mixed English and other language 31/101 (30.7) 2/8 (25.0)
 Language other than English 13/101 (12.9) 2/8 (25.0)
Not married 6/101 (5.9) 1/8 (12.5)
Family living below the poverty line6 23/112 (20.5) 7/11 (63.6)*
1

Values are mean ± SE or n (%). The trial initially enrolled 127 infants; however, 2 died before study day 1 and were not included in subsequent analyses. *Statistically significant difference, P < 0.05. Apgar, appearance pulse grimace activity respiration; HMBF, human milk–based fortifier group; SNAP-II, Score for Neonatal Acute Physiology II.

2

Gestational age determined using maternal estimates of last menstrual period. If the early ultrasound prediction differed by ≥2 wk, the gestational age estimate derived from the early ultrasound was used.

3

Scores may range from 0 to 100 with higher values indicating higher neonatal risk and newborn illness.

4

Includes late-onset sepsis, chronic lung disease, necrotizing enterocolitis, and retinopathy of prematurity requiring treatment.

5

Includes echodense intraparenchymal lesions, periventricular leukomalacia, porencephalic cysts, or ventriculomegaly with or without intraventricular hemorrhage.

6

Based on 2012 Statistics Canada family size–adjusted cutoff values.