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. Author manuscript; available in PMC: 2012 Mar 1.
Published in final edited form as: Addiction. 2010 Dec 23;106(3):641–650. doi: 10.1111/j.1360-0443.2010.03243.x

Table 3.

Trimmed multilevel model of stress, stress coping, and affect effects on smoking risk over 48 hours.

Predictor Level-1 Predictor Level-2 Coefficient Standard Error T-ratio Odds Ratio 95% CI df p-value
Coping-lapse relations
Mean P (Smoking) 48 hrs after indexa − 0.880 0.387 − 2.276 0.415 (0.194,0.886) 342 0.023*
Active bupropion SR − 1.171 0.360 − 3.251 0.310 (0.153,0.629) 342 0.002*
Age 0.047 0.015 3.173 1.048 (1.018,1.080) 342 0.002*
Gender 0.980 0.361 2.716 2.664 (1.312,5.411) 342 0.007*
Quit at least 24 hours − 3.141 0.374 − 8.399 0.043 (0.021,0.090) 342 0.000*
Index Stressful Event (Y/N) (48 hrs earlier) − 0.266 0.168 − 1.578 0.767 (0.551,1.066) 33,560 0.114
Index Stress Coping (Y/N) (48 hrs earlier) 0.078 0.208 0.373 1.081 (0.719,1.624) 33,560 0.709
Smoking (Y/N) (48 hrs before index) 0.890 0.085 10.447 2.434 (2.060,2.876) 33,560 0.000*
Gender − 0.316 0.103 −3.055 0.729 (0.596,0.893) 33,560 0.003*
Stressful Events (Count; in 48 hrs following index) 0.318 0.027 11.585 1.375 (1.303,1.451) 33,560 0.000*
Stress Coping (Y/N) (48 hrs after index) 0.548 0.123 4.461 1.730 (1.360,2.201) 33,560 0.000*
Gender − 0.434 0.120 − 3.623 0.648 (0.512,0.819) 33,560 0.001*

Affect-lapse relations
Negative Affect (At index) − 0.004 0.021 −0.211 0.996 (0.955, 1.038) 21,271 0.839
Negative Affect (Within 4 hrs of index) − 0.015 0.021 −0.730 0.985 (0.945, 1.026) 21,271 0.465

Positive Affect (At index) − 0.014 0.019 − 0.754 0.986 (0.950, 1.023) 21,271 0.451
Positive Affect (Within 4 hrs of index) − 0.026 0.018 − 1.424 0.974 (0.940, 1.010) 21,271 0.155
a

Random coefficient, reliability = .826. All other predictors were treated as fixed to facilitate model convergence.

*

p<.05