Background: We evaluated the effectiveness of a transtheoretical model (TTM)-based passive smoking prevention
programme developed to enhance passive smoking avoidance among pregnant women and women with young
children in Taiwan. Methods: Subjects were pregnant women recruited from the obstetrics/gynaecology
department and women with children younger than age 3 recruited from the paediatrics department of four
hospitals in Taiwan. Participants were randomly assigned to a group receiving a TTM-based intervention
programme or a comparison group receiving routine care. The intervention programme consisted of educational
materials and phone counselling. Baseline assessment and post-test data were collected from both groups using
a self-reported questionnaire developed based on stages of change related to readiness for passive smoking
avoidance. Results: Determinants of change, post-test scores of knowledge, experiential and behavioural
processes and self-efficacy were significantly different between the intervention group and comparison group
among both pregnant women and mothers. Among pregnant women, the intervention group had significantly
higher post-test scores than the comparison group. The distribution of percentages in three stages of change
(Precontemplation, Contemplation/Preparation and Action/Maintenance) was significantly different between the
two groups among both pregnant women and mothers. However, a higher percentage of mothers made progress
in stages of change compared with pregnant women. Conclusion: A TTM-based intervention programme was
potentially effective in passive smoking prevention by improving knowledge, experiential and behavioural
processes and self-efficacy among pregnant women and women with young children. A higher percentage of
mothers with young children had progressed in stages of change post-intervention compared with pregnant
women.
Background: We evaluated the effectiveness of a transtheoretical model (TTM)-based passive smoking preventionprogramme developed to enhance passive smoking avoidance among pregnant women and women with youngchildren in Taiwan. Methods: Subjects were pregnant women recruited from the obstetrics/gynaecologydepartment and women with children younger than age 3 recruited from the paediatrics department of fourhospitals in Taiwan. Participants were randomly assigned to a group receiving a TTM-based interventionprogramme or a comparison group receiving routine care. The intervention programme consisted of educationalmaterials and phone counselling. Baseline assessment and post-test data were collected from both groups usinga self-reported questionnaire developed based on stages of change related to readiness for passive smokingavoidance. Results: Determinants of change, post-test scores of knowledge, experiential and behaviouralprocesses and self-efficacy were significantly different between the intervention group and comparison groupamong both pregnant women and mothers. Among pregnant women, the intervention group had significantlyhigher post-test scores than the comparison group. The distribution of percentages in three stages of change(Precontemplation, Contemplation/Preparation and Action/Maintenance) was significantly different between thetwo groups among both pregnant women and mothers. However, a higher percentage of mothers made progressin stages of change compared with pregnant women. Conclusion: A TTM-based intervention programme waspotentially effective in passive smoking prevention by improving knowledge, experiential and behaviouralprocesses and self-efficacy among pregnant women and women with young children. A higher percentage ofmothers with young children had progressed in stages of change post-intervention compared with pregnantwomen.
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