Smoking Habits among Italian Adolescents: What Has Changed in the Last Decade?

Table 2

Prevalence (%) of smoking at least once a week. Trends by age group^∗ and gender (HBSC 2002-2006-2010).

HBSC	2002 prevalence (95% CI)	2006 prevalence (95% CI)	2010 prevalence (95% CI)	𝑃-value for linear trend
Smoked at least once a week
13 yr old
M	8.6 (6.2; 11.8)	6.1 (4.1; 8.9)	5.1 (3.7; 7.2)	0.037
F	6.7 (4.5; 9.7)	5.5 (3.6; 8.2)	4.3 (3.0; 6.0)	0.170
15 yr old
M	21.3 (17.5; 25.6)	20.0 (16.8; 23.7)	21.9 (18.9; 25.3)	0.957
F	24.8 (21.1; 28.9)	19.6 (16.0; 23.9)	23.1 (19.6; 27.0)	0.637

∗11-year-olds not included due to small numbers.