Background: To our knowledge, no studies have reported on the long-term variability of vitamin D status in adolescents. Objective: To determine whether tracking of vitamin D status occurs in healthy adolescents, we assessed the variability of 25-hydroxyvitamin D [25(OH)D] every 2 y over a 10-y period in a longitudinal cohort of adolescents living in Johannesburg, South Africa (latitude 268S). D...

OBJECTIVE To evaluate if mid-upper arm circumference (MUAC) can be used for obesity screening in preschool children. METHODS 1,090 children aged from 12 to 59.99 months were studied. Personal information, weight, height and MUAC were obtained. Sensitivity and specificity to detect obese children were calculated for MUAC to age and MUAC to height z scores. Obesity was defined as weight to heig...

INTRODUCTION The prevalence of overweight and obesity among American Indian youth may be 2 to 3 times higher than the national average. Whether weight gain during discrete out-of-school periods is occurring and contributing to the prevalence of overweight and obesity in this population is unknown. METHODS We obtained repeated cross-sectional body mass index (BMI) samples from third-, fourth-,...

BACKGROUND To date, little is known for pacing in ultra-endurance athletes competing in a non-stop event and in a multi-stage event, and especially, about pacing in a multi-stage event with different disciplines during the stages. Therefore, the aim of the present study was to examine the effect of age, sex and calendar year on triathlon performance and variation of performance by events (i.e.,...

OBJECTIVE To examine whether indoor coal combustion for heating, which releases pollutants into the air, affects early childhood growth. DESIGN A prospective longitudinal study, with growth measurements extracted from medical records of the children's well-child care visits at age 36 months. Data were compiled from self-administered questionnaires and medical records, both completed at 2 time...

OBJECTIVES To perform a comparative analysis of anthropometric data from Suruí, Xavánte and Wari' indigenous children under 60 months of age using the NCHS/1977 and the WHO/2005 growth curves. METHODS Anthropometric measurements followed standard procedures and the data obtained were converted into z scores using the Epi-Info (Version 3.4) and WHO-Anthro (Version Beta) softwares. The indices ...

The purpose of this study was to investigate the impact of income inequality and parental socioeconomic status on several birth outcomes in Japan. Data were collected on birth outcomes and parental socioeconomic status by questionnaire from Japanese parents nationwide (n = 41,499) and then linked to Gini coefficients at the prefectural level in 2001. In multilevel analysis, z scores of birth we...

OBJECTIVE To investigate the prevalence and associated factors with overweight and obesity among children under five in the Alagoas state, Northeast of Brazil. DESIGN Cross-sectional population-based study. The study was based on 1115 children with an average age of 24.7 months (SD ± 16.8), and 51.7% were female. Nutritional status was classified according to BMI / age. The z score > + 1 and ...

BACKGROUND AND PURPOSE Anemia is 1 potential mechanism by which the brain receives inadequate oxygenation. The purpose of this study was to determine in acute stroke patients whether lower hemoglobin values were associated with worse hemispatial neglect. METHODS In 203 subjects, neglect testing batteries were administered within 24 hours of admission for acute right hemispheric stroke. We ana...

BACKGROUND AND PURPOSE Unlike conventional functional MR imaging where external sensory/cognitive paradigms are needed to specifically activate different regions of the brain, resting functional connectivity MR imaging acquires images in the absence of cognitive demands (a resting condition) and detects brain regions, which are highly temporally correlated. Therefore, resting functional MR imag...