David C. Aron

Learn More
BACKGROUND Many interventions found to be effective in health services research studies fail to translate into meaningful patient care outcomes across multiple contexts. Health services researchers recognize the need to evaluate not only summative outcomes but also formative outcomes to assess the extent to which implementation is effective in a specific(More)
We examined the frequency of acquisition of bacterial pathogens on investigators' hands after contacting environmental surfaces near hospitalized patients. Hand imprint cultures were positive for one or more pathogens after contacting surfaces near 34 (53%) of 64 study patients, with Staphylococcus aureus and vancomycin-resistant Enterococcus being the most(More)
OBJECTIVE The epidemic proportions and management complexity of diabetes have prompted efforts to improve clinic throughput and efficiency. One method of system redesign based on the chronic care model is the Shared Medical Appointment (SMA) in which groups of patients (8-20) are seen by a multi-disciplinary team in a 1-2 h appointment. Evaluation of the(More)
Pregnancy is a rare occurrence in women with Cushing's syndrome. Amenorrhea or oligomenorrhea occurs in about 75% of premenopausal women with Cushing's syndrome as a result of suppression of gonadotrophin secretion primarily by excess glucocorticoids. We have reviewed pregnancies in women with Cushing's syndrome (63 cases from the literature and four cases(More)
CONTEXT Hospitals and health plans are often ranked on rates of cesarean delivery, under the assumption that lower rates reflect more appropriate, more efficient care. However, most rankings do not account for patient factors that affect the likelihood of cesarean delivery. OBJECTIVE To compare hospital cesarean delivery rates before and after adjusting(More)
Objective: To examine the reliability of birth certificate data and determine if reliability differs between teaching and nonteaching hospitals. Methods: We compared information from birth certificates and medical records in 33,616 women admitted for labor and delivery in 1993–95 to 20 hospitals in Northeast Ohio. Analyses determined the agreement for 36(More)
CONTEXT The Surgical Care Improvement Project (SCIP) aims to reduce surgical infectious complication rates through measurement and reporting of 6 infection-prevention process-of-care measures. However, an association between SCIP performance and clinical outcomes has not been demonstrated. OBJECTIVE To examine the relationship between SCIP(More)
High dose dexamethasone suppression testing has been widely employed in the differentiation between pituitary ACTH-dependent hypercortisolism [Cushing's disease (CD)] and the ectopic ACTH syndrome. We hypothesized that the high dose dexamethasone suppression test as it is performed in practice does not improve the ability to differentiate between these two(More)
BACKGROUND Intestinal colonization by Staphylococcus aureus among hospitalized patients has been associated with increased risk of staphylococcal infection and could potentially contribute to transmission. We hypothesized that S. aureus intestinal colonization is associated with increased frequency of S. aureus on patients' skin and nearby environmental(More)