Andrew Ortaglia

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BACKGROUND We examined the covarying patterns of physical activity and sedentary behaviors among adolescents and their long-term maintenance. METHODS Data came from the National Longitudinal Study of Adolescent Health (1995-2002). We used latent class analysis to identify distinct covarying patterns in adolescence. Logistic regression models were used to(More)
BACKGROUND Self-reported physical activity has been inversely associated with mortality but the effect of objectively measured step activity on mortality has never been evaluated. The objective is to determine the prospective association of daily step activity on mortality among free-living adults. METHODS AND FINDINGS Cohort study of free-living adults(More)
Previous studies assessing the association between cardiorespiratory fitness (CRF) and waist circumference (WC) have often restricted their evaluation to the association of CRF on average WC. Consequently, the assessment of important variations in the relationship of CRF across the WC distribution was precluded. The purpose of this study was to(More)
BACKGROUND Children with Autism Spectrum Disorder (ASD) participate in a variety of treatments, including medication, behavioral, alternative and developmental treatments. Parent adherence to these treatments is crucial for positive child outcomes. OBJECTIVE The current study: 1) Explored patterns of parent adherence across the full range of treatments(More)
PURPOSE To examine gender-specific associations between food insecurity and insulin resistance in a representative U.S. METHODS Data on 5533 adults of 20 years of age or more (2742 men and 2791 women) without diabetes from the 2005-2010 National Health and Nutrition Examination Survey were analyzed. Respondents were categorized as having full, marginal,(More)
OBJECTIVE Chronic inflammation is linked to many chronic conditions. One of the strongest modulators of chronic inflammation is diet. The Dietary Inflammatory Index (DII) measures dietary inflammatory potential and has been validated previously, but not among African Americans (AAs). DESIGN Cross-sectional analysis using baseline data from the Healthy(More)
OBJECTIVE To examine ADHD symptom persistence and factors associated with elevated symptom counts in a diverse, longitudinal community-based sample. METHOD Parents reported demographics and completed a diagnostic interview repeatedly over a 6-year period. At Time 1, 481 interviews were completed about children (5-13 years); all participants were invited(More)
PURPOSE Nonalcoholic fatty liver disease (NAFLD) is considered the liver component of the metabolic syndrome and is strongly associated with cardiometabolic diseases. In adults, cardiorespiratory fitness (CRF) is inversely associated with alanine aminotransferase (ALT), a blood biomarker for NAFLD. However, information regarding these associations is scarce(More)
BACKGROUND Research shows high prevalence of complementary and alternative medicine (CAM) use in individuals with arthritis. Little is known about CAM use and objectively measured physical functional performance. OBJECTIVE The main objective was to determine if CAM use was associated with self-reported symptoms and physical functional performance in(More)