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. 2021 Oct 17;18(20):10905. doi: 10.3390/ijerph182010905

Table 1.

Sample characteristics among Mexican adult smokers, 2020.

Sample A (Full Sample) Sample B (Sub-Sample)
Variables March
(n = 1395)
%
July
(n = 1358)
%
p-Value * March
(n = 606)
%
July
(n = 1193)
%
p-Value *
Sex
Male 51 53 0.335 49 52 0.146
Age group
18–29 31 30 0.494 44 31 <0.0001
30–39 31 31 31 30
40–49 17 19 11 19
>50 21 20 14 20
Educational attainment
Middle school graduate or less 11 9 0.199 11 10 0.454
Some college/high school/tech school 55 57 61 59
College degree or higher 34 34 28 31
Household income a
Less than 8000 MX monthly 23 25 0.563 30 25 0.221
8001 to 15,000 MX monthly 30 31 28 30
15,001 to 20,000 MX monthly 16 17 14 17
>20,000 MX monthly 27 24 23 23
No response 5 5 5 5
Dual use status and frequency
Exclusive cigarette smoker 59 61 0.700 54 50 0.229
Sporadic dual user 26 25 34 37
Frequent dual user 14 14 13 13
Smoking frequency
Non-daily 52 52 0.967 65 54 <0.001
Daily 48 48 35 46
Recent quit smoking attempt
(Last 4 months)
Yes 43 40 0.070 53 60 0.003
Intention to quit
(Next month-6 months)
Yes 38 35 0.186 61 65 0.107

* p-values from Chi2 test for categorical variables among all respondents who participated in March and July. a MX = Mexican pesos; exchange rate for MX to USD is approximately $20 pesos = $1 US dollar.