Preventive medicine
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Preventive medicine · Mar 2020
A longitudinal study on the relationship between screen time and adolescent alcohol use: The mediating role of social norms.
It has been proposed that increased screen time contributes to increasing rates of adolescents abstaining from alcohol use. We argue that this proposition depends on the extent to which a type of screen time promotes social norms. We examined whether social norms mediated the association between alcohol use and i) social media, ii) television, and iii) video gaming. ⋯ Alcohol-related social norms were shown to mediate the association between social media use, both at a correlational and longitudinal level, and the association between alcohol use and television use and alcohol use, at a longitudinal level, which may imply that these promote positive social norms towards alcohol use, subsequently increasing adolescents' drinking behaviour.
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Preventive medicine · Mar 2020
Development of a prediction model to target screening for high blood pressure in children.
Targeted screening for childhood high blood pressure may be more feasible than routine blood pressure measurement in all children to avoid unnecessary harms, overdiagnosis or costs. Targeting maybe based e.g. on being overweight, but information on other predictors may also be useful. Therefore, we aimed to develop a multivariable diagnostic prediction model to select children aged 9-10 years for blood pressure measurement. ⋯ Using the model and a cut-off of 5% for predicted risk, sensitivity and specificity were 59% and 76%; using child overweight only, sensitivity and specificity were 47% and 84%. In conclusion, our diagnostic prediction model uses easily obtainable information to identify children at increased risk of high blood pressure, offering an opportunity for targeted screening. This model enables to detect a higher proportion of children with high blood pressure than a strategy based on child overweight only.
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Preventive medicine · Mar 2020
Tobacco industry pricing undermines tobacco tax policy: A tale from Bangladesh.
The effectiveness of tax increase in reducing tobacco use depends on the extent to which the industry passes on the tax to consumers. Evidence suggests that tobacco industry may absorb or raise the price more than the tax increase depending on the price segment of tobacco products. In this paper, we examined the industry's pricing strategy by price segment of the cigarette market in Bangladesh by observing the deviation between the market retail prices (MRP) of cigarettes faced by consumers and government recommended retail prices (RRP) used as tax base in a four-tiered ad valorem tax structure. ⋯ Bangladesh cigarette industry adopted a differential pricing strategy that undermined the intended effect of tax policy change in reducing cigarette consumption and improving public health. This pricing strategy was supported by the tiered excise tax structure which should be replaced with a uniform specific excise system. In the face of growing cigarette affordability, it is crucial that the specific tax be increased routinely by an amount that induces cigarette price increases large enough to make cigarettes less affordable over time.
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Preventive medicine · Mar 2020
Randomized Controlled TrialThe impact of front-of-package claims, fruit images, and health warnings on consumers' perceptions of sugar-sweetened fruit drinks: Three randomized experiments.
We aimed to examine the impact of claims, fruit images, and health warnings on consumers' perceptions of fruit-flavored drinks with added sugar (i.e., "fruit drinks"). We conducted three 2x2x2 randomized experiments with online convenience samples of U. S. adults (Study 1 n = 2139 in 2018, current e-cigarette users and smokers; Study 2 n = 670 in 2018, current e-cigarette users; Study 3 n = 1006 in 2019, general sample). ⋯ In Study 3, the "100% Vitamin C" nutrition claim only increased perceived product healthfulness when the drink did not also have a health warning (interaction p < .05). These findings suggest that 100% Vitamin C claims increase the appeal of fruit drinks, whereas health warnings decrease the appeal. Together, these studies support policies to restrict marketing and require health warnings on sugar-sweetened beverage packaging.