[Severe low back pain among pregnant women in Southern Brazil].

The scope off this article is to assess the prevalence and identify associated factors with severe low back pain (LBP) during pregnancy among mothers living in Rio Grande, in the south of Brazil, in 2013. A standardized questionnaire was applied by trained interviewers within 48 hours after delivery. Multivariate analysis was carried out using Poisson regression.

[Low back pain among adolescents in the semiarid region: results of a population census in the city of Caracol, State of Piauí, Brazil].

The scope of this article is to assess low back pain prevalence and associated factors in the last 12 months among adolescents in a city in the south of the State of Piauí. It was a cross-sectional study which included 1,112 adolescents aged 13-19 in the city of Caracol, Piauí. Demographic, socio-economic, nutritional, behavioral and comorbidty characteristics were investigated.