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Higher rates of behavioural and emotional problems at preschool age in children born moderately preterm
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  • Published on:
    Moderately preterm and late preterm infants:brief history

    I read with interest the recent article (1) wherein the authors use variable definitions for moderately preterm (MP) infants as 32-35 weeks of gestational age (GA) and 32-36 weeks GA. In the methods however , the authors categorize infants born at 32-35weeks gestation as MP infants and do not include 36 0/7-36 6/7 weeks of gestation due to study design. Upon review of the brief history of this terminology, it was found...

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    Conflict of Interest:
    None declared.
  • Published on:
    Re:Statistical vs. Clinical Significance
    • Marieke R. Potijk
    • Other Contributors:
      • Andrea F. de Winter, Arend F. Bos, Jorien M. Kerstjens, and Sijmen A. Reijneveld

    We fully agree with Dr Miller, who draw attention to the fact that statistical significance is not always equal to clinical significance. We also agree that the effect size is the appropriate measure for clinical relevance. For the difference in mean total problems scores on the Child Behavior Checklist (CBCL) between moderately preterm and term-born children the effect size is 0.22 in our study, being a small (but not...

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    Conflict of Interest:
    None declared.