Factors associated with dietary supplement use by people who exercise at gyms.

OBJECTIVE To assess the factors associated with the use of dietary supplements by people who exercise at gyms.METHODS A cross-sectional study with a sample defined by convenience, considering the number of gyms registered in the Conselho Regional de Educação Física (Regional Council of Physical Education) of Sao Luis, MA, Northeastern Brazil, from July 2011 to July 2012. The final sample comprised 723 individuals who exercise at gyms.

Low birth weight in São Luís, northeastern Brazil: trends and associated factors.

Background: To analyze trends in LBW (low birth weight) rate using birth registry data and identify factors associated with LBW in São Luís comparing two birth cohorts separated by a 12-year interval.

Methods: 2,426 births were included in 1997/98 and 5,040 in 2010. The dependent variable was LBW (<2,500 g).

Secular trends in the rate of low birth weight in Brazilian State Capitals in the period 1996 to 2010.

Secular trends in rates of low birth weight in Brazilian state capital cities were evaluated for the period 1996 to 2010 using joinpoint regression models. The rates were calculated using data from the Live Births Information System. Newborns weighing less than 500 g were excluded.

Perinatal and early adulthood factors associated with adiposity.

We used body mass index (BMI) and waist circumference (WC) as fat indicators to assess whether perinatal and early adulthood factors are associated with adiposity in early adulthood. We hypothesized that risk factors differ between men and women and are also different when WC is used for measuring adiposity as opposed to BMI. We conducted a longitudinal study based on a sample of 2,063 adults from the 1978/1979 Ribeirão Preto birth cohort.

[Prevalence and factors associated with abdominal obesity and excess weight among adults from Maranhão, Brazil].

Objective: To determine the prevalence of excess body weight and abdominal obesity and assess the association with socioeconomic, demographic and behavioral factors among adults of Maranhão, Brazil.

Methods: Multistage cluster sample investigated through a household survey on 1,005 adults aged 20 to 59 years (393 men and 612 women). Anthropometric measures: weight, height and waist circumference (WC) were assessed.