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Table 3 Summary of separate regression models with bedtime cortisol levels (log nmol/L), on body size at birth (birth weight, birth length, ponderal index); b = anti-logged unstandardized regression coefficient, β = standardized regression coefficients

From: Is body size at birth related to circadian salivary cortisol levels in adulthood? Results from a longitudinal cohort study

Sample Criterion: bedtime cortisol levels
   Predictor  
  Model estimates Predictor estimates
  N R2 b β p
Total sample      
Birth weight (kg) 692 .013 1.19 .11 .003
Birth length (cm) 690 .001 1.01 .03 .390
Ponderal index (kg/m3) 690 .015 1.03 .12 .001
Women      
Birth weight (kg) 345 .004 1.11 .06 .240
Birth length (cm) 343 .000 0.99 -.02 .682
Ponderal index (kg/m3) 343 .012 1.03 .11 .041
Men      
Birth weight (kg) 347 .015 1.21 .12 .021
Birth length (cm) 347 .003 1.02 .05 .349
Ponderal index (kg/m3) 347 .012 1.03 .11 .041