[Physical activity, screen time, and use of medicines among adolescents: the 1993 Pelotas (Brazil) birth cohort study]

Medication use among quilombola and non-quilombola rural adolescents in the countryside of Bahia, Brazil

This study aims to describe the use of prescribed and non-prescribed medications and associated factors among adolescents living in rural, quilombolas and non-quilombolas communities in the interior of Bahia, Brazil. This is a population-based survey with 390 adolescents between 10 and 19 years old in 2015. Prevalence and odds ratio for use of prescribed and non-prescribed medication, and multiple analysis was conducted by Multinomial Logistic Regression. Among the interviewees, 13.6% used only prescribed medications and 14.4% only used non-prescribed medications. Quilombolas demonstrated a greater diversity of pharmaceutical specialties used. The low prevalence of medication use in both groups of adolescents suggests less access to these products. Despite this, it was observed the irrational use of medication, mainly as self-medication. Quilombola adolescents, although they belong to the same area of coverage of other communities, presented different associated factors when compared to the non-quilombola group: the presence of toothache in the last 6 months and have had a regular source of care increased the use of prescribed medications.

Association between sedentary behavior and bone mass in adolescents

The effects of sedentary behavior on adolescents' bone health are controversial because, even in normal weight individuals, the excessive time spent in some specific types of these behaviors appears to have no negative effect on bone health.

PURPOSE

To analyze the relationship between sedentary behaviors and bone mass in adolescents.

METHODS

One hundred four adolescent boys and girls, aged 10 to 14 years, were divided into normal weight and overweight according to weight status. Specific sedentary behaviors (time spent on the Internet for school and non-school purposes, using the computer, watching television, and playing videogames) were assessed by questionnaire, and the total sedentary behavior time by accelerometry. Bone parameters were collected using X-ray absorptiometry, using total and lumbar bone mineral density (BMD) and total and lumbar bone mineral content (BMC) values.

RESULTS

In both groups, the time spent on the Internet for non-school purposes was positively correlated to the total and lumbar BMD. Also, while in the overweight group, the time spent using the computer was negatively correlated to lumbar BMD, and the time spent on the Internet for non-school purposes was positively correlated to the total and lumbar BMC, and in the normal weight group, the time spent on the Internet for non-school purposes was positively correlated to lumbar BMC.

CONCLUSIONS

Adolescents who spend more time in sedentary behavior, especially using the Internet for non-school purposes, have higher BMD and BMC, while normal weight adolescents who spend more time on the computer have lower BMD.

Playing the wrong game again? Policy responses to problematic video gaming in Brazil

Brazil is the leading game market in South America and the second leading market in Latin America. Worldwide, Brazil ranks fourth in number of gamers, with nearly 66.3 million gamers. In the last years, there has been a significant and progressive concern about the negative consequences of video gaming overuse, but no population-based study has estimated the prevalence of problematic gaming in Brazil. There is also no public policy aimed at reducing risk and harm of problematic gaming. Drawing a parallel between gaming and alcohol policies, we discuss some alternatives to address this challenging situation.