. Author manuscript; available in PMC: 2018 Jan 11.

Published in final edited form as: Pharmacol Biochem Behav. 2010 Oct 14;97(3):509–513. doi: 10.1016/j.pbb.2010.10.004

Table 2.

Summary of simple linear regression analyses.

Dependent Variable	R²	Beta	SE (B)	Standardized Beta
Craving (rating)	0.21	0.44	0.16	0.45 ^*
QSU-B F1: Desire to Smoke	0.21	2.41	0.87	0.46 ^**
QSU-B F2: Relief of Negative Affect	0.15	1.59	0.72	0.39 ^*
MNWS	0.22	1.36	0.49	0.47 ^**
Physical Symptoms	0.32	0.71	0.20	0.56 ^**
Positive Mood	0.20	−1.54	0.58	−0.45 ^*
Distress	0.34	1.38	0.37	0.58 ^***
Salivary Cortisol (nmol/L)	0.06	−0.04	0.03	−0.24
Plasma Cortisol (ug/dL)	0.02	−0.02	0.02	−0.15
ACTH (pg/mL)	0.00	0.00	0.03	−0.04
Heart Rate (bpm)	0.18	1.04	0.43	0.42 ^*

p<0.05,

^**

p<0.01,

^***

p<0.001.

Simple linear regression using leptin as the independent variable to predict the craving and mood measures. Note. QSU-B=Questionnaire of Smoking Urges-Brief; MNWS= Minnesota Nicotine Withdrawal Scale; ACTH=Adrenocorticotropin.