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. 2008 Jun 2;8:190. doi: 10.1186/1471-2458-8-190

Table 2.

Frequency of smoking (number of days smoking in the last month) among current smokers* by school and gender

Number of days Proportion (%)

Middle Schools High Schools


Overall (n = 664) Boys (n = 435) Girls (n = 229) Overall (n = 1,580) Boys (n = 884) Girls (n = 696)
1–2 days 34.7 31.1 41.3 15.8 13.5 18.6
3–5 days 11.2 8.9 15.5 10.7 9.5 12.1
6–9 days 9.2 8.8 9.8 7.2 6.4 8.3
10–19 days 9.7 9.7 9.7 8.3 8.3 8.3
20–29 days 5.7 5.7 5.6 9.6 9.8 9.3
Everyday 29.5 35.8 18.1 48.4 52.5 43.4

*Current smoking is defined as having smoked on 1 or more days of the past 30 days