Knowledge and attitude toward waterpipe smoking: scale validation and correlates in the Lebanese adult population

International audienceThe World Health Organization declared waterpipe smoking as a growing public health concern. Our study aimed to assess waterpipe smoking knowledge and attitude among current waterpipe smokers in comparison with nonsmokers and to evaluate its association with current and cumulative waterpipe smoking. A cross-sectional study was carried between May and December 2018 using a multistage cluster sample across Lebanon. Nonsmokers or exclusive current waterpipe smokers were eligible to participate. A total of 4046 adult individuals participated in the study, 38.3% (n = 1550) being current waterpipe smokers. Current waterpipe smoking was positively associated with female gender [adjusted odds ratio (aOR) 1.79, 95%CI 1.40-2.28] and having a mother who is a regular smoker (aOR 1.47, 95%CI 1.15-1.88) while it was negatively associated with better knowledge about waterpipe smoking harm (aOR 0.95, 95%CI 0.93-0.97) and positive attitude toward waterpipe smoking ban (aOR 0.98, 95%CI 0.96-0.99). Cumulative waterpipe smoking was negatively associated with female gender (β = - 0.012), higher education level (β = - 0.28), and positive attitude toward WPS ban (β = - 0.06). Waterpipe smoking is largely present among the Lebanese population, with waterpipe smokers showing lower knowledge about harm and more intolerant attitude about banning. Health awareness supported by media campaigns and governmental initiatives should be conducted to educate people and change their perceptions regarding waterpipe smoking