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Table 4 Predictors of being quit for 30 days or more after 14 months of followup, adult Mexican smokers*

From: Consumption of single cigarettes and quitting behavior: A longitudinal analysis of Mexican smokers

Baseline independent variables % quit Crude OR Adjusted OR**
    (95% CI) (95% CI)
Entire population 17.9% -- --
Frequency of buying singles None 13.6% 1 1
  3 or less times/mo 20.5% 1.64[1.05 - 2.56]a 1.11[0.63 - 1.95]
  Weekly or more 19.3% 1.51[0.99 - 2.32] 1.28[0.70 - 2.37]
Frequency of buying singles to reduce consumption None 14.3% 1 1
  3 or less times/mo 27.4% 2.26[1.35 - 3.77]b 2.30[1.19 - 4.45]a
  Weekly or more 18.1% 1.32[0.72 - 2.43] 0.92[0.41 - 2.09]
Urge to smoke when see singles sold None 15.0% 1 1
  3 or less times/mo 20.8% 1.48[0.81 - 2.70] 1.4[0.76 - 2.58]
  Weekly or more 17.0% 1.15[0.76 - 1.75] 0.92[0.57 - 1.49]
Observations     1155
  1. a: p < 0.05; b: p < 0.01; c: p < 0.001.
  2. *logistic regression models estimated; all independent variables assessed at baseline
  3. **model adjusts for all variables shown in the table, as well as baseline age, sex, education, income, smoking intensity, previous year quit attempts, and intention to quit.
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