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. Author manuscript; available in PMC: 2010 Feb 23.
Published in final edited form as: J Clin Psychiatry. 2008 Nov 21;69(11):1743–1750. doi: 10.4088/jcp.v69n1109

Table 2.

Univariate Predictors of Continuous Abstinence From Smoking

Abstinent (n=14)
Not Abstinent (n=100)
Predictor Mean SD Mean SD Univariate
p-value
Male 11 67 0.380
Married 0 7 0.307
Education (highest year completed) 11.50 2.93 11.52 2.79 0.979
IQ 92.31 17.67 88.09 16.98 0.410
Current alcohol use: 1.14 0.36 1.24 0.64 0.598
  (1=no etoh; 5=>5 drinks/day)
Level of nicotine dependence (FTND 6.14 1.88 5.59 2.15 0.362
  1=no dependence; 10=severe
Average baseline CO 30.07 12.13 25.16 13.94 0.213
Pack years 35.68 25.73 37.82 28.20 0.789
Age of smoking initiation 19.86 7.08 16.80 5.95 0.084
Proportion of smokers in house 0.70 0.24 0.77 0.24 0.449
Number of previous quit attempts 5.31 8.38 3.89 8.04 0.558
Previous quit lasted 91 days or longer 4 16 0.250
Psychiatric problems with past quit 13 76 0.150
How much do you want to quit? 9.29 1.64 8.48 1.89 0.137
  (1=very little; 10=very much)
How confident are you that you will be 8.43 1.70 6.99 2.63 0.051
  one year from now? (1=very little; 10=very much)
How much do friends and family want you to quit? 6.00 3.40 6.97 3.40 0.324
  (1=very little; 10=very much)
How helpful would people be if you quit? 3.36 2.62 4.18 2.80 0.304
  (1=very helpful; 10=not very helpful)   
Categorical medication variable: 1.36 0.50 0.90 0.67 0.016
  1=bup OR NRT only; 2=bup AND NRT only)
PANSS Total 55.93 7.68 63.04 15.47 0.095
PANSS Positive Subscale 9.93 4.89 10.36 4.64 0.747
PANSS Negative Subscale 11.86 4.37 14.24 5.85 0.147
PANSS Cognitive Subscale 9.86 2.71 11.76 3.92 0.082
PANSS Excited Subscale 5.50 1.79 6.15 2.44 0.336
PANSS Depressive Subscale 10.36 3.18 11.37 4.03 0.372
SANS Total 31.14 11.51 41.46 20.04 0.063
SANS Affective Subscale 6.36 4.77 10.22 7.93 0.079
SANS Alogia Subscale 3.00 2.63 6.24 4.76 0.014
SANS Avolition Subscale 7.86 4.66 7.28 4.93 0.678
SANS Anhedonia Subscale 10.57 5.53 11.88 5.86 0.434
SANS Attention Subscale 3.79 3.81 6.11 4.02 0.044
HAM-D Total 9.43 5.46 9.08 5.88 0.836
Barnes Total 1.29 2.05 1.30 2.18 0.983
Simpson-Angus Total 2.64 3.39 2.06 2.82 0.484
AIMS Total 2.29 3.93 1.86 2.73 0.606
Stroop Interference Reaction Time 1065.76 167.47 1203.23 165.87 0.032
CPT Hit Reaction Time 378.56 59.39 457.12 99.78 0.003
CPT Hit Reaction Time Standard Error 12.02 5.22 19.16 12.36 0.110
Fingertapping Non-Dominant Total 36.96 10.45 36.45 8.78 0.862
Fingertapping Dominant Total 42.15 9.77 41.07 8.76 0.713
Digit Span Total Forward and 12.69 2.75 13.74 3.81 0.344
CVLT Total Trials 1–5 35.00 8.16 34.06 12.01 0.786