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. Author manuscript; available in PMC: 2008 Jun 15.
Published in final edited form as: Drug Alcohol Depend. 2006 Dec 13;89(1):42–51. doi: 10.1016/j.drugalcdep.2006.11.017

Table 3.

Pearson correlation of other smoking measures with the sum score and separate factors (N=1157; 95% confidence intervals in parenthesis)

Measurement Sum score Drive/Priority Stereotypy/Continuity Tolerance
FTND 0.62 (.59–.66) 0.54 (.50–.58) 0.37 (.32–.42) 0.30 (.25–.35)
# of DSM-IV symptoms 0.51 (.47–.55) 0.49 (.45–.53) 0.16 (.10–.22) 0.30 (.25–.35)
Quantity of cigarettes smoked per day during period of heaviest smoking 0.45 (.40–.50) 0.34 (.29–.39) 0.30 (.25–.35) 0.27 (.22–.32)
Maximum cigarettes smoked in a 24 hour period 0.44 (.39–.49) 0.34 (.29–.39) 0.25 (.20–.30) 0.29 (.24–.34)