TABLE 4

Developmental Outcomes at CA of 20 Months

ELBW GroupELGA Group
Period 1 (1996–1999) (n = 122)Period 2 (2000–2003) (n = 109)PPeriod 1 (1996–1999) (n = 118)Period 2 (2000–2003) (n = 107)P
Bayley MDI score
    <70, n (%)49 (40)46 (42).444a44 (37)48 (45).068a
    70–84, n (%)40 (33)40 (37)38 (32)39 (36)
    ≥85, n (%)33 (27)23 (21)36 (31)20 (19)
    Mean ± SD73.4 ± 15.373.7 ± 15.6.91174.5 ± 15.672.7 ± 15.7.405
Bayley PDI scoreb
    <70, n (%)56 (48)41 (39).054a53 (48)38 (38).082a
    70–84, n (%)32 (28)24 (23)29 (26)24 (24)
    ≥85, n (%)28 (24)39 (38)29 (26)37 (37)
    Mean ± SD69.1 ± 15.774.1 ± 18.0.029a69.4 ± 16.074.1 ± 17.9.045
Overall neurodevelopmental impairment, n (%)c62 (51)53 (49).73959 (50)55 (51).834
  • a Cochran-Armitage test.

  • b ELBW group, period I, n = 116; ELBW group, period II, n = 104; ELGA group, period I, n = 111; ELGA group, period II, n = 99.

  • c Includes neurosensory abnormalities and/or a MDI score of <70.