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. Author manuscript; available in PMC: 2023 Jun 7.
Published in final edited form as: J Dev Behav Pediatr. 2001 Feb;22(1):19–26. doi: 10.1097/00004703-200102000-00003

Table 4.

The Best Four-Variable Model for Predicting the Effects of Medical and Demographic Factors on Communicative Competence

Criterion Communication DQ betaa Unstandardized R R2b F p
Step 1 Patent ductus arteriosis −.31 −13.14 .09 16.1 .001
Step 2 Socioeconomic status −.25 −4.58 .15 14.0 .001
Step 3 Neurologic risk −.19 −5.42 .19 11.8 .001
Step 4 Racec −.15 −6.27 .21 9.4 .001
a

Standardized regression coefficient.

b

Cumulative R2.

c

No other risk factor added significantly to the prediction model. These included multiple birth, necrotizingenterocolitis, septicemia, peak bilirubin, retinopathy of prematurity, gestational age, and birthweight.