RT Journal Article SR Electronic T1 Predicting parents' use of booster seats JF Injury Prevention JO Inj Prev FD BMJ Publishing Group Ltd SP 313 OP 318 DO 10.1136/ip.2010.029181 VO 17 IS 5 A1 Beth S Bruce A1 Anne W Snowdon A1 Charles Cunningham A1 Carolyn L Cramm A1 Krista Whittle A1 Heather Correale A1 Melanie Barwick A1 Caroline Piotrowski A1 Lynne Warda A1 Jessie Harrold YR 2011 UL http://injuryprevention.bmj.com/content/17/5/313.abstract AB Objective To examine the simultaneous contribution of multiple factors associated with parents' use of booster seats.Methods Using the theory of planned behaviour framework, constructs of the theory were tested for usefulness in predicting self-reported intent and behaviour with respect to parents' use of booster seats. Through the use of structural equation modelling, the study demonstrated the most significant predictors of the intent to use a booster seat and reported use of booster seats in a Canadian sample (n=1480) of parents of school-aged children, 4–9 years.Results The strongest predictors of intent to use booster seats were attitudes (benefits of booster seat use) and second, subjective norms (perceived booster seat use in the community). Parent barriers were inversely associated with intent and use of booster seats and child barriers with use. Intent and norms had the greatest effect on use, both positive and equally influential. The final model explains 30% of the variance in booster seat use.Conclusion Messages that address the benefit to the child in preventing injury could be beneficial if spread more diversely, establishing a social norm. Legislation, enforcement and local policy could positively influence the perceived culture that supports and expects booster seat use for school-aged children.