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Table 1 Results of hierarchical regression analyses for cortisol measures, unstandardized and standardized regression coefficients ( N =157)

From: Exploring salivary cortisol and recurrent pain in mid-adolescents living in two homes

  CAR Cortisol decline
Predictor Step 1 Step 2 Step 3 Step 1 Step 2 Step 3
B Beta B Beta B Beta B Beta B Beta B Beta
Sex -24.85*** -.36*** -24.83*** -.36*** -23.73*** -.35*** -.38* -.17* -.38* -.17* -45* -.20*
School year -5.91 -.09 -5.57 -.08 -5.30 -.08 -.07 .03 -.07 -.03 -.09 -.04
Living arrangements    7.39 .08 9.64 .11    -.06 -.02 -.20 -.07
sex٭living arrangements      -6.95 -.05      .44 .09
R2 adjusted   .13***   .13   .13   .02   .01   .01
R2 change   .14***   .01   .00   .03   .00   .01
  1. *p < .05, ***p < .001.
  2. For CAR, CIs (95%) for the third step were as follows: sex (-34.80/-12.66), school year (-15.13/4.52), living arrangements (-6.23/-25.50), sex٭living arrangements (-34.94/21.04).
  3. For cortisol decline, CIs (95%) for the third step were as follows: sex (-85/-.06), school year (-.44/.26), living arrangements (-77/.37), sex٭living arrangements (-.56/1.45).
  4. Note: Sex: 0 = girls, 1 = boys; School year: grade 8 = 0; grade 9 = 1; Living arrangements: One home = 0, JPC = 1.