Jason Ashwood

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OBJECTIVES Physical activity may be constrained or facilitated by local environments. The availability of neighborhood facilities for physical activity may be particularly relevant for youth, who are unable to drive and whose activity is often limited to the immediate distance they are able to walk or bicycle. Several studies have shown that proximity to(More)
OBJECTIVES To assess the accessibility and suitability of schools as recreational sites and to determine whether they are associated with young adolescent girls' weekend metabolic equivalent-weighted moderate-to-vigorous physical activity and body mass index (BMI). METHODS We drew a half-mile (0.805 km) radius around the residences of participants in the(More)
BACKGROUND An increasing number of patients are visiting retail clinics for simple acute conditions. Physicians worry that visits to retail clinics will interfere with primary care relationships. No prior study has evaluated the impact of retail clinics on receipt of primary care. OBJECTIVE To assess the association between retail clinic use and receipt(More)
BACKGROUND Socioeconomic status (SES) has well known associations with a variety of health conditions and behaviors in adults but is unknown in adolescents. METHODS Multilevel analysis was conducted to examine the associations between individual and neighborhood-level measures of SES and physical activity and body mass index in a sample of 1554 6th grade(More)
In principle, efforts to improve patient safety, if they are successful, should lead to reductions in claims of medical malpractice. In practice, however, this has not yet been systematically demonstrated to be so. The authors examined the relationship between safety outcomes in hospitals and malpractice claiming against providers, using administrative data(More)
BACKGROUND Previous research suggests that disparities in non-small-cell lung cancer (NSCLC) survival can be explained in part by disparities in the receipt of cancer treatment. Few studies, however, have considered race and sex disparities in the timing and appropriateness of treatment across stages of diagnosis. OBJECTIVE To evaluate the relationship of(More)
OBJECTIVES We tested the relationship between urban or rural residence as defined by rural-urban commuting area codes and risk of mortality in a sample of Medicare beneficiaries with lung cancer. METHODS We used Surveillance, Epidemiology, and End Results data linked with Medicare claims to build proportional hazards models. The models tested hypothesized(More)
Dermatopathological evaluation of pediatric preputial inflammatory disease rarely allows for specific diagnosis other than pediatric penile lichen sclerosus et atrophicus (balanitis xerotica obliterans, LSA/BXO). A prospective immunopathological study was performed on 20 consecutive, unselected, clinically and histopathologically confirmed LSA/BXO cases to(More)
Retail clinics have been viewed by policy makers and insurers as a mechanism to decrease health care spending, by substituting less expensive clinic visits for more expensive emergency department or physician office visits. However, retail clinics may actually increase spending if they drive new health care utilization. To assess whether retail clinic(More)