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Background This paper describes a protocol for determining the incidence of serious fall injuries for Strategies to Reduce Injuries and Develop Confidence in Elders (STRIDE), a large, multicenter pragmatic clinical trial with limited resources for event adjudication. We describe how administrative data (from participating health systems and Medicare claims) can be used to confirm participant-reported events, with more time- and resource-intensive full-text medical record data used only on an “as-needed” basis. Methods STRIDE is a pragmatic cluster-randomized controlled trial involving 5451 participants age ≥ 70 and at increased risk for falls, served by 86 primary care practices in 10 US health systems. The STRIDE intervention involves a nurse falls care manager who assesses a participant’s underlying risks for falls, suggests interventions using motivational interviewing, and then creates, implements and longitudinally follows up on an individualized care plan with the participant (and caregiver when appropriate), in partnership with the participant’s primary care provider. STRIDE’s primary outcome is serious fall injuries, defined as a fall resulting in: (1) medical attention billable according to Medicare guidelines with a) fracture (excluding isolated thoracic vertebral and/or lumbar vertebral fracture), b) joint dislocation, or c) cut requiring closure; OR (2) overnight hospitalization with a) head injury, b) sprain or strain, c) bruising or swelling, or d) other injury determined to be “serious” (i.e., burn, rhabdomyolysis, or internal injury). Two sources of data are required to confirm a serious fall injury. The primary data source is the participant’s self-report of a fall leading to medical attention, identified during telephone interview every 4 months, with the confirmatory source being (1) administrative data capturing encounters at the participating health systems or Medicare claims and/or (2) the full text of medical records requested only as needed. Discussion Adjudication is ongoing, with over 1000 potentially qualifying events adjudicated to date. Administrative data can be successfully used for adjudication, as part of a hybrid approach that retrieves full-text medical records only when needed. With the continued refinement and availability of administrative data sources, future studies may be able to use administrative data completely in lieu of medical record review to maximize the quality of adjudication with finite resources. Trial registration ClinicalTrials.gov (NCT02475850). Electronic supplementary material The online version of this article (10.1186/s40621-019-0190-2) contains supplementary material, which is available to authorized users.

The Indian Health Service (IHS) is an educational rotation site for numerous medical students and residents. These IHS rotations may be an important factor in recruitment and retention of physicians to the IHS. We describe the combined number of student/resident rotations in the Southwest IHS and their influence on recruitment and retention. We also analyze factors related to choice of rural practice in the IHS.We conducted a survey of clinical directors and IHS physicians in Arizona and New Mexico.Twenty (87%) clinical director surveys and 289 (66%) physician surveys were returned. More than 400 students/residents participate in rotations annually in the IHS in Arizona and New Mexico. Eighty-four percent of clinical directors feel that educational programs are important to recruitment. Forty-five percent of current IHS physicians participated in IHS rotations as students or residents, and 87% feel that rotating influenced their decision to join the IHS. Eighty percent of IHS physicians who teach feel that working with students and residents improves their job satisfaction. Seventy-five percent of respondents practice in rural areas. Rural medical student and resident rotations are associated with subsequent rural practice.Many medical students and residents rotate in the Southwest IHS. Clinical directors state that these rotations are helpful to recruitment, and IHS physicians who rotated feel it was important in their decision to join the IHS. IHS clinicians feel that teaching improves job satisfaction.