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Table 5 Mean differences on smoking outcome measures between groups

From: Does the number of free nicotine patches given to smokers calling a quitline influence quit rates: results from a quasi-experimental study

   Mean Difference on Smoking Outcome Measures
Comparisons 12-month quit rate 12-month intent-to-treat quit rate Sustained quitters Relapsed smokers Delayed quitters
Group 1
2-week supply
Group 2
4-week supply
.05 .06 .01 .00 .03
Group 1
2-week supply
Group 3
6-week supply contingent upon first 2-weeks of use
.07 .08* .05 -.01 .02
Group 1
2-week supply
Group 4
6-week supply
-.08 -.04 -.04 .08* -.04
Group 1
2-week supply
Group 5
8-week supply
-.05 -.05 -.03 .09* -.02
Group 2
4-week supply
Group 3
6-week supply contingent upon first 2-weeks of use
.03 .03 .04 -.02 -.01
Group 2
4-week supply
Group 4
6-week supply
-.12* -.10* -.05 .07 -.07*
Group 2
4-week supply
Group 5
8-week supply
-.10 -.11* -.04 .09* -.06
Group 3
6-week supply contingent upon first 2-weeks of use
Group 4
6-week supply
-.15* -.13* -.09 .09* -.06
Group 3
6-week supply contingent upon first 2-weeks of use
Group 5
8-week supply
-.13* -.14* -.08 .10* -.04
Group 4
6-week supply
Group 5
8-week supply
.02 -.01 .01 .02 .01
  1. Note: Group 1 = 2 weeks of patches; Group 2 = 4 weeks of patches; Group 3 = 6 weeks of patches contingent upon progress toward quitting measured at 2 weeks; Group 4 = 6-weeks of patches; Group 5 = 8 weeks of patches
  2. * indicates significant difference in means between group compared is different at p < 0.05 level after the Bonferroni correction is applied