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Table 2 Correlates of purchasing singles, adult Mexican smokers

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

Baseline independent variables % bought singles at last purchase Bought singles at last purchase* Freq of buying singles** Freq of buying singles to reduce consumption**
    Bivariate OR (95% CI) Adj OR*** (95% CI) Bivariate B (SE) Adj B*** (SE) Bivariate B (SE) Adj B*** (SE)
Entire population 16.5% -- -- -- -- -- --
Sex Female 16.5% 1 1 0 0 0 0
  Male 19.3% 1.21[0.90 - 1.61] 1.35[0.96 - 1.91] 0.08[0.11] 0.19[0.14] -0.03[0.14] 0.06[0.15]
Age 18-24 22.5% 1 1 0 0 0 0
  25-39 20.0% 0.86[0.52 - 1.41] 1.17[0.67 - 2.05] -0.38[0.19]a -0.24[0.22] -0.40[0.19]a -0.19[0.23]
  40-55 12.9% 0.51[0.30 - 0.88]a 0.87[0.46 - 1.64] -0.86[0.21]c -0.59[0.24]a -0.75[0.20]c -0.39[0.24]
  55+ 17.9% 0.75[0.40 - 1.39] 1.08[0.50 - 2.35] -1.02[0.25]c -0.93[0.27]c -1.02[0.25]c -0.83[0.33]a
Education < Middle school 21.1% 1 1 0 0 0 0
  Middle school 17.9% 0.82[0.56 - 1.20] 0.63[0.38 - 1.06] 0.05[0.16] -0.30[0.18] 0.00[0.15] -0.31[0.21]
  Technical school 18.2% 0.83[0.45 - 1.55] 1.19[0.56 - 2.54] -0.03[0.22] -0.05[0.26] 0.10[0.23] 0.14[0.27]
  High school 18.0% 0.82[0.47 - 1.45] 0.66[0.36 - 1.24] 0.03[0.22] -0.19[0.21] 0.10[0.21] -0.11[0.27]
  > High school 14.6% 0.64[0.34 - 1.21] 0.7[0.30 - 1.64] -0.37[0.23] -0.43[0.25] -0.20[0.25] -0.23[0.34]
Monthly household income (pesos) $0-3000 25.6% 1 1 0 0 0 0
  $ 3001-5000 20.2% 0.73[0.46 - 1.18] 0.89[0.53 - 1.49] -0.42[0.18]a -0.18[0.18] -0.30[0.19] -0.07[0.22]
  $5001-8000 12.6% 0.42[0.27 - 0.65]c 0.59[0.36 - 0.95]a -0.89[0.20]c -0.63[0.23]b -0.66[0.22]b -0.27[0.27]
  $8001 or more 15.4% 0.53[0.31 - 0.91]a 0.67[0.41 - 1.10] -0.57[0.22]a -0.21[0.22] -0.32[0.22] 0.04[0.27]
  Missing 12.9% 0.43[0.24 - 0.77]b 0.61[0.29 - 1.30] -1.15[0.22]c -0.89[0.23]c -0.98[0.26]c -0.62[0.29]a
Smoking intensity Non daily 31.3% 1 1 0 0 0 0
  Daily < = 5 cigs 15.4% 0.40[0.28 - 0.57]c 0.41[0.28 - 0.59]c -0.39[0.15]a 0.04[0.17] -0.59[0.17]c -0.31[0.20]
  Daily >5 cigs 7.4% 0.18[0.09 - 0.33]c 0.14[0.08 - 0.25]c -0.80[0.16]c -0.58[0.16]c -0.89[0.19]c -0.72[0.20]c
Tried quit in last year No 15.2% 1 1 0 0 0 0
  Yes 23.9% 1.74[1.18 - 2.58]b 1.07[0.68 - 1.68] 0.68[0.13]c 0.39[0.15]b 0.79[0.14]c 0.48[0.16]b
Intend to quit in next 6 months No 15.0% 1 1 0 0 0 0
  Yes 29.5% 2.26[1.46 - 3.49]c 2.17[1.45 - 3.27]c 0.69[0.16]c 0.57[0.17]b 0.74[0.19]c 0.59[0.20]b
Urge to smoke when see singles sold None 8.2% 1 1 0 0 0 0
  3 or less/mo 16.2% 2.17[1.32 - 3.58]b 1.84[1.03 - 3.29]a 1.45[0.19]c 1.36[0.20]c 1.67[0.22]c 1.59[0.25]c
  Weekly or more 39.6% 7.36[5.00 - 10.85]c 8.06[5.27 - 12.30]c 2.47[0.16]c 2.41[0.16]c 2.29[0.21]c 2.19[0.22]c
Observations     1586   1583   1579
  1. a: p < 0.05; b: p < 0.01; c: p < 0.001.
  2. *logistic regression models estimated to determine purchasing singles at last purchase; all variables in models assessed at baseline only.
  3. **ordinal regression model estimated to determine frequency of purchasing singles; all variables in models assessed at baseline only.
  4. ***models adjust for all variables shown in the table
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