TABLE 1

Neonatal Characteristics of Tested Versus Not Tested Preterm Childrena

CharacteristicTestedNot TestedP Value
n = 67n = 87
Male32 (48)48 (55).361
Birth weight, g630 (570–700)660 (595–705).468
Gestation, wk
 222 (3)5 (6).774
 2319 (28)24 (27)
 2446 (69)58 (67)
Duration of ventilation, d40 (29–57)51 (36–60).013
ETT frequencya5 (3–7)6 (4–7).140
Maximum ETT size, mma
 2.533 (49)29 (41).154
 3.030 (45)41 (58)
 3.54 (6)1 (1)
Maximum ETT ratioa4.2 (3.9–4.6)4.1 (3.7–4.5).382
Surgical ligation of PDA3 (4.5)1 (1).318
  • Data represent median (interquartile range) or n (%).

  • a Missing data in 16 not tested children.