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. Author manuscript; available in PMC: 2013 Aug 1.
Published in final edited form as: J Pediatr. 2012 Mar 16;161(2):270–5.e1. doi: 10.1016/j.jpeds.2012.02.007

Table I.

Demographic data for infants with AKI and those without AKI

No AKI (n = 24) AKI (n = 9) P value
Infant characteristics
 Male sex, n (%) 9 (38) 8 (89) <.01
 Race, n (%) .50
  Black 13 (54) 4 (44)
  White 9 (38) 5 (56)
  Hispanic 2 (8) 0 (0)
 Gestational age, weeks,
  mean ± SD
35 ± 3 37 ± 3 .10
 Birth weight, g, mean ± SD 2421 ± 631 3425 ± 863 <.001
 Length, cm, mean ± SD 46.4 ± 3.6 49.2 ± 5.0 .87
 Head circumference, cm,
  mean ± SD
31.5 ± 2.1 33.4 ± 1.8 <.05
 Survival, n (%) 24 (100) 7 (77) .07
 Number of urine collections,
  mean ± SD
2 (1-3) 2 (1-3) NS
 1-minute Apgar, median (IQR) 2 (1-6) 1 (0-5) .10
 5-minute Apgar, median (IQR) 7 (4-7) 5 (0-7) .06
 Cord PH, mean ± SD 7.14 ± 0.15 6.97 ± 0.21 <.01
Infant interventions
 Delivery room bag, n (%) 7 (29) 3 (33) .56
 Delivery room oxygen, n (%) 23 (95) 8 (88) .47
 Delivery room pressors, n (%) 20 (83) 7 (77) .53
 Delivery room intubation, n (%) 4 (16) 5 (55) <.05
 Surfactant, n (%) 2 (8) 2 (22) .30
 Phenobarbitol, n (%) 4 (16) 1 (11) <.01
 Pressors during hospital, n (%) 5 (20) 1 (11) <.01
 Aminoglycoside, n (%) 21 (88) 7 (78) .60
 Standard ventilator, n (%) 18 (75) 6 (67) .70
Maternal characteristics
 Age, mean ± SD 25.6 ± 6.0 23.2 ± 4.8 .30
 Hypertension, n (%) 6 (25) 1 (11) .36
 Preeclampsia, n (%) 8 (33) 0 (0) .07
 Smoking, n (%) 6 (25) 2 (22) .62
 Antibiotic, n (%) 16 (66) 6 (66) .65
 Diabetes mellitus, n (%) 5 (20) 3 (33) .37
 Chorioamnionitis, n (%) 3 (12) 0 (0) .37
 Steroids, n (%) 7 (29) 2 (22) .52
 Prenatal care, n (%) 23 (95) 8 (88) .47