Objectives To investigate the association of carbonated non-diet soft drink consumption and violence perpetration in a sample of Boston adolescents.
Methods In a survey of Boston public high schools, respondents were asked how often they drank non-diet soft drinks and whether they had carried a weapon or engaged in physical violence with a peer. Regression analysis was used to determine the role of soft drink consumption in these behaviours.
Results Adolescents who drank more than five cans of soft drinks per week (nearly 30% of the sample) were significantly more likely to have carried a weapon and to have been violent with peers, family members and dates (p<0.01 for carrying a weapon and p<0.001 for the three violence measures). Frequent soft drink consumption was associated with a 9–15% point increase in the probability of engaging in aggressive actions, even after controlling for gender, age, race, body mass index, typical sleep patterns, tobacco use, alcohol use and having family dinners.
Conclusions There was a significant and strong association between soft drinks and violence. There may be a direct cause-and-effect relationship, perhaps due to the sugar or caffeine content of soft drinks, or there may be other factors, unaccounted for in our analyses, that cause both high soft drink consumption and aggression.
- soft drinks
- behaviour change
- public health
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