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. Author manuscript; available in PMC: 2020 Dec 1.
Published in final edited form as: Int J Behav Med. 2019 Dec;26(6):600–607. doi: 10.1007/s12529-019-09826-y

Table 3.

Hierarchical Linear Regression for Detectability

Step 1
 Step 2
Predictor Variable Unstandardized b β SE p Unstandardized b B SE p
FEV1 % Predicted 0.11 0.35 0.03 0.001 0.09 0.27 0.04 0.015
Age --- --- --- --- −0.19 −0.14 0.15 0.222
Pack-years --- --- --- --- −0.04 −0.14 0.03 0.201
Sleep Apnea Status --- --- --- --- −0.98 −0.05 2.10 0.641
WRAT 4 --- --- --- --- 0.22 0.19 0.13 0.099
HADS --- --- --- --- −0.34 −0.19 0.20 0.095
R2 0.12 0.001 0.20 0.167
R2 Change 0.08 0.167