TABLE 3

Individual Growth Models for Longitudinal Changes in PPVT-R Raw Scores and Effects of Indomethacin and Gender on Receptive Language Development From 3 Through 12 Years of Corrected Age

Parameters and Growth PredictorsEstimate ± SEd
Unconditional Growth Model, Quadratic ChangeUnadjusted Model, Indomethacin and Gender EffectsAdjusted Model, Indomethacin and Gender Effectsa
Initial status
    Intercept12.2 ± 0.7b13.9 ± 1.4b11.3 ± 2.1b
    Indomethacin−1.3 ± 2.0−1.2 ± 1.8
    Male gender−5.0 ± 1.9c−4.6 ± 1.7c
    Indomethacin × male gender5.7 ± 2.7c5.4 ± 2.4c
Rate of change
    Age17.4 ± 0.3b17.1 ± 0.7b15.6 ± 1.0b
    Age × indomethacin0.4 ± 1.0−0.5 ± 0.4
    Age × male gender−0.1 ± 1.00.1 ± 0.4
    Age × indomethacin × male gender0.4 ± 1.40.4 ± 0.5
    Age2−0.7 ± 0.0b−0.7 ± 0.1b−0.5 ± 0.1b
  • a Adjusted for prenatal steroid use, BPD, maternal education, and minority status.

  • b P < .001.

  • c P < .05.

  • d Units = PPVT-R raw points.