BACKGROUND
The predictors of waterpipe smoking progression are yet to be examined using a
longitudinal study that is guided by a theoretical model of behavioral change. This
study identifies the gender-specific predictors of waterpipe smoking progression among
adolescents in Irbid, Jordan.
METHODS
This study uses data from a school longitudinal study of smoking behavior in
Irbid, Jordan. A random sample of 19 schools was selected by probability proportionate
to size. A total of 1781 seventh graders were enrolled at baseline, and completed a
questionnaire annually from 2008 through 2011. Students who reported ever smoking
waterpipe (N = 864) at any time point were assessed for progression (escalation in the
frequency of waterpipe smoking) in the subsequent follow-up. Grouped-time survival
analysis was used to identify the risk of progression.
RESULTS
During the three years of follow-up, 29.6% of students progressed in waterpipe
smoking. Predictors of waterpipe smoking progression were higher mother's education,
enrollment in public school, frequent physical activity, and low refusal self-efficacy
among boys, having ever smoked cigarettes, and having friends and siblings who smoke
waterpipe among girls. Awareness of harms of waterpipe was protective among boys and
seeing warning labels on the tobacco packs was protective among girls.
CONCLUSIONS
Even at this early stage, about a third of waterpipe smokers progressed in
their habit during the 3 year follow up. Factors predicting progression of use differed
by gender, which calls for gender-specific approaches to waterpipe interventions among
Jordanian youth.