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. Author manuscript; available in PMC: 2021 Apr 24.
Published in final edited form as: Early Hum Dev. 2019 Oct 24;140:104891. doi: 10.1016/j.earlhumdev.2019.104891

Table 2.

Statistical characteristics of the mixed-model

Variable β-coefficient z-value p-value
Hemoglobin −0.77 −1.49 0.13
EGA −1.02 −2.25 0.02*
PMA −0.21 −1.36 0.17
PDA treatment 3.12 1.36 0.17

Model = Critical_FTOE ~ EGA + Hgb + PMA + PDA_tx + (1 ∣ StudyID), AIC = 110.6,

‘*’

denotes significance at p<0.05.