Investigating the validity of web-enabled mechanistic case diagramming scores to assess students' integration of foundational and clinical sciences.

As medical schools have changed their curricula to address foundational and clinical sciences in a more integrated fashion, teaching methods such as concept mapping have been incorporated in small group learning settings. Methods that can assess students' ability to apply such integrated knowledge are not as developed, however. The purpose of this project was to assess the validity of scores on a focused version of concept maps called mechanistic case diagrams (MCDs), which are hypothesized to enhance existing tools for assessing integrated knowledge that supports clinical reasoning. The data were from the medical school graduating class of 2018 (N = 136 students). In 2014-2015 we implemented a total of 16 case diagrams in case analysis groups within the Mechanisms of Health and Disease (MOHD) strand of the pre-clinical curriculum. These cases were based on topics being taught during the lectures and small group sessions for MOHD. We created an overall score across all 16 cases for each student. We then correlated these scores with performance in the preclinical curriculum [as assessed by overall performance in MOHD integrated foundational basic science courses and overall performance in the Clinical and Professional Skills (CAPS) courses], and standardized licensing exam scores [United States Medical Licensing Exam (USMLE)] Step 1 (following core clerkships) and Step 2 Clinical Knowledge (at the beginning of the fourth year of medical school). MCD scores correlated with students' overall basic science scores (r = .46, p = .0002) and their overall performance in Clinical and Professional Skills courses (r = .49, p < .0001). In addition, they correlated significantly with standardized exam measures, including USMLE Step 1 (r = .33, p ≤ .0001), and USMLE Step 2 CK (r = .39, p < .0001). These results provide preliminary validity evidence that MCDs may be useful in identifying students who have difficulty in integrating foundational and clinical sciences.

Teaching Medical Students to Help Patients Quit Smoking: Outcomes of a 10-School Randomized Controlled Trial.

BACKGROUND: Early in medical education, physicians must develop competencies needed for tobacco dependence treatment. OBJECTIVE: To assess the effect of a multi-modal tobacco dependence treatment curriculum on medical students' counseling skills. DESIGN: A group-randomized controlled trial (2010-2014) included ten U.S. medical schools that were randomized to receive either multi-modal tobacco treatment education (MME) or traditional tobacco treatment education (TE). SETTING/PARTICIPANTS: Students from the classes of 2012 and 2014 at ten medical schools participated. Students from the class of 2012 (N = 1345) completed objective structured clinical examinations (OSCEs), and 50 % (N = 660) were randomly selected for pre-intervention evaluation. A total of 72.9 % of eligible students (N = 1096) from the class of 2014 completed an OSCE and 69.7 % (N = 1047) completed pre and post surveys. INTERVENTIONS: The MME included a Web-based course, a role-play classroom demonstration, and a clerkship booster session. Clerkship preceptors in MME schools participated in an academic detailing module and were encouraged to be role models for third-year students. MEASUREMENTS: The primary outcome was student tobacco treatment skills using the 5As measured by an objective structured clinical examination (OSCE) scored on a 33-item behavior checklist. Secondary outcomes were student self-reported skills for performing 5As and pharmacotherapy counseling. RESULTS: Although the difference was not statistically significant, MME students completed more tobacco counseling behaviors on the OSCE checklist (mean 8.7 [SE 0.6] vs. mean 8.0 [SE 0.6], p = 0.52) than TE students. Several of the individual Assist and Arrange items were significantly more likely to have been completed by MME students, including suggesting behavioral strategies (11.8 % vs. 4.5 %, p < 0.001) and providing information regarding quitline (21.0 % vs. 3.8 %, p < 0.001). MME students reported higher self-efficacy for Assist, Arrange, and Pharmacotherapy counseling items (ps ≤0.05). LIMITATIONS: Inclusion of only ten schools limits generalizability. CONCLUSIONS: Subsequent interventions should incorporate lessons learned from this first randomized controlled trial of a multi-modal longitudinal tobacco treatment curriculum in multiple U.S. medical schools. NIH Trial Registry Number: NCT01905618.

An Investigation of the Generalizability of Medical School Grades.

UNLABELLED: Construct/Background: Medical school grades are currently unstandardized, and their level of reliability is unknown. This means their usefulness for reporting on student achievement is also not well documented. This study investigates grade reliability within 1 medical school. APPROACH: Generalizability analyses are conducted on grades awarded. Grades from didactic and clerkship-based courses were treated as 2 levels of a fixed facet within a univariate mixed model. Grades from within the 2 levels (didactic and clerkship) were also entered in a multivariate generalizability study. RESULTS: Grades from didactic courses were shown to produce a highly reliable mean score (G = .79) when averaged over as few as 5 courses. Although the universe score correlation between didactic and clerkship courses was high (r = .80), the clerkship courses required almost twice as many grades to reach a comparable level of reliability. When grades were converted to a Pass/Fail metric, almost all information contained in the grades was lost. CONCLUSIONS: Although it has been suggested that the imprecision of medical school grades precludes their use as a reliable indicator of student achievement, these results suggest otherwise. While it is true that a Pass/Fail system of grading provides very little information about a student's level of performance, a multi-tiered grading system was shown to be a highly reliable indicator of student achievement within the medical school. Although grades awarded during the first 2 didactic years appear to be more reliable than clerkship grades, both yield useful information about student performance within the medical college.

The integrated curriculum in medical education: AMEE Guide No. 96.

The popularity of the term "integrated curriculum" has grown immensely in medical education over the last two decades, but what does this term mean and how do we go about its design, implementation, and evaluation? Definitions and application of the term vary greatly in the literature, spanning from the integration of content within a single lecture to the integration of a medical school's comprehensive curriculum. Taking into account the integrated curriculum's historic and evolving base of knowledge and theory, its support from many national medical education organizations, and the ever-increasing body of published examples, we deem it necessary to present a guide to review and promote further development of the integrated curriculum movement in medical education with an international perspective. We introduce the history and theory behind integration and provide theoretical models alongside published examples of common variations of an integrated curriculum. In addition, we identify three areas of particular need when developing an ideal integrated curriculum, leading us to propose the use of a new, clarified definition of "integrated curriculum", and offer a review of strategies to evaluate the impact of an integrated curriculum on the learner. This Guide is presented to assist educators in the design, implementation, and evaluation of a thoroughly integrated medical school curriculum.

Do preceptors with more rating experience provide more reliable assessments of medical student performance?

BACKGROUND: Although the existing psychometric literature provides guidance on the best method for acquiring a reliable clinical evaluation form (CEF)-based score, it also shows that a single CEF rating has very low reliability. PURPOSE: This study examines whether experience with rating students might act as a form of rater training and hence improve the quality of CEF ratings. METHODS: Preceptors were divided into two groups based on rater experience. The univariate and multivariate G study designs used were simple rater (r)-nested-within-person (p) [r : p and r(○) : p(•)] models, and in the univariate analysis was applied separately to CEFs completed by high and low experienced raters. RESULTS: The high experienced rater group yielded a substantially higher observed reliability in both the univariate and multivariate analyses. CONCLUSIONS: These results support the hypothesis that high experienced raters produce more reliable ratings of student performance and suggest methods for improving CEF ratings.

Diagnostic Reasoning by Expert Clinicians: What Distinguishes Them From Their Peers?

Objectives Expert clinicians (ECs) are defined in large part as a group of physicians recognized by their peers for their diagnostic reasoning abilities. However, their reasoning skills have not been quantitatively compared to other clinicians using a validated instrument. Methods We surveyed Internal Medicine physicians at the University of Iowa to identify ECs. These clinicians were administered the Diagnostic Thinking Inventory, along with an equivalent number of their peers in the general population of internists. Scores were tabulated for structure and thinking, as well as four previously identified elements of diagnostic reasoning (data acquisition, problem representation, hypothesis generation, and illness script search and selection). We compared scores between the two groups using the two-sample t-test. Results Seventeen ECs completed the inventory (100%). Out of 25 randomly-selected non-EC internists (IM), 19 completed the inventory (76%). Mean total scores were 187.2 and 175.8 for the EC and the IM groups respectively. Thinking and structure subscores were 91.5 and 95.71 for ECs, compared to 85.5 and 90.3 for IMs (p-values: 0.0783 and 0.1199, respectively). The mean data acquisition, problem representation, hypothesis generation, and illness script selection subscores for ECs were 4.46, 4.57, 4.71, and 4.46, compared to 4.13, 4.38, 4.45, and 4.13 in the IM group (p-values: 0.2077, 0.4528, 0.095, and 0.029, respectively). Conclusions ECs have greater proficiency in searching for and selecting illness scripts compared to their peers. There were no statistically significant differences between the other scores and subscores. These results will help to inform continuing medical education efforts to improve diagnostic reasoning.

Medical school preadmission interviews: are structured interviews more reliable than unstructured interviews?

BACKGROUND: The medical education research literature consistently recommends a structured format for the medical school preadmission interview. There is, however, little direct evidence to support this recommendation. PURPOSE: To shed further light on this issue, the present study examines the respective reliability contributions from the structured and unstructured interview components at the University of Iowa. METHODS: We conducted three univariate G studies on ratings from 3,043 interviews and one multivariate G study using responses from 168 applicants who interviewed twice. RESULTS: Examining interrater reliability and test-retest types of reliability, the unstructured format proved more reliable in both instances. Yet, combining measures from the two interview formats yielded a more reliable score than using either alone. CONCLUSIONS: At least from a reliability perspective, the popular advice regarding interview structure may need to be reconsidered. Issues related to validity, fairness, and reliability should be carefully weighed when designing the interview process.

Web-Enabled Mechanistic Case Diagramming: A Novel Tool for Assessing Students' Ability to Integrate Foundational and Clinical Sciences.

PROBLEM: As medical schools move from discipline-based courses to more integrated approaches, identifying assessment tools that parallel this change is an important goal. APPROACH: The authors describe the use of test item statistics to assess the reliability and validity of web-enabled mechanistic case diagrams (MCDs) as a potential tool to assess students' ability to integrate basic science and clinical information. Students review a narrative clinical case and construct an MCD using items provided by the case author. Students identify the relationships among underlying risk factors, etiology, pathogenesis and pathophysiology, and the patients' signs and symptoms. They receive one point for each correctly identified link. OUTCOMES: In 2014-2015 and 2015-2016, case diagrams were implemented in consecutive classes of 150 medical students. The alpha reliability coefficient for the overall score, constructed using each student's mean proportion correct across all cases, was 0.82. Discrimination indices for each of the case scores with the overall score ranged from 0.23 to 0.51. In a G study using those students with complete data (n = 251) on all 16 cases, 10% of the variance was true score variance, and systematic case variance was large. Using 16 cases generated a G coefficient (relative score reliability) equal to 0.72 and a Phi equal to 0.65. NEXT STEPS: The next phase of the project will involve deploying MCDs in higher-stakes settings to determine whether similar results can be achieved. Further analyses will determine whether these assessments correlate with other measures of higher-order thinking skills.

Time-variable medical education innovation in context.

BACKGROUND: Medical education is undergoing robust curricular reform with several innovative models emerging. In this study, we examined current trends in 3-year Doctor of Medicine (MD) education and place these programs in context. METHODS: A survey was conducted among Deans of U.S. allopathic medical schools using structured phone interview regarding current availability of a 3-year MD pathway, and/or other variations in curricular innovation, within their institution. Those with 3-year programs answered additional questions. RESULTS: Data from 107 institutions were obtained (75% survey response rate). The most common variation in length of medical education today is the accelerated 3-year pathway. Since 2010, 9 medical schools have introduced parallel 3-year MD programs and another 4 are actively developing such programs. However, the total number of students in 3-year MD tracks remains small (n=199 students, or 0.2% total medical students). Family medicine and general internal medicine are the most common residency programs selected. Benefits of 3-year MD programs generally include reduction in student debt, stability of guaranteed residency positions, and potential for increasing physician numbers in rural/underserved areas. Drawbacks include concern about fatigue/burnout, difficulty in providing guaranteed residency positions, and additional expense in teaching 2 parallel curricula. Four vignettes of alternative innovative and relevant curricular initiatives are also presented in order to place 3-year MD programs in a broader context of medical education reform in the U.S. CONCLUSION: Three-year MD pathways are the most common accelerated alternative available at a small number of medical schools for highly selected students. Long-term evaluation of these programs will be essential to determine if these programs are meeting their goals (e.g., increasing the number of physicians in rural/underserved areas). Benefits and shortcomings of such programs should be carefully examined when considering this approach, or others described, as part of MD curricular options designed to individualize medical education.

Design and rationale of the medical students learning weight management counseling skills (MSWeight) group randomized controlled trial.

Physicians have an important role addressing the obesity epidemic. Lack of adequate teaching to provide weight management counseling (WMC) is cited as a reason for limited treatment. National guidelines have not been translated into an evidence-supported, competency-based curriculum in medical schools. Weight Management Counseling in Medical Schools: A Randomized Controlled Trial (MSWeight) is designed to determine if a multi-modal theoretically-guided WMC educational intervention improves observed counseling skills and secondarily improve perceived skills and self-efficacy among medical students compared to traditional education (TE). Eight U.S. medical schools were pair-matched and randomized in a group randomized controlled trial to evaluate whether a multi-modal education (MME) intervention compared to traditional education (TE) improves observed WMC skills. The MME intervention includes innovative components in years 1-3: a structured web-course; a role play exercise, WebPatientEncounter, and an enhanced outpatient internal medicine or family medicine clerkship. This evidence-supported curriculum uses the 5As framework to guide treatment and incorporates patient-centered counseling to engage the patient. The primary outcome is a comparison of scores on an Objective Structured Clinical Examination (OSCE) WMC case among third year medical students. The secondary outcome compares changes in scores of medical students from their first to third year on an assessment of perceived WMC skills and self-efficacy. MSWeight is the first RCT in medical schools to evaluate whether interventions integrated into the curriculum improve medical students' WMC skills. If this educational approach for teaching WMC is effective, feasible and acceptable it can affect how medical schools integrate WMC teaching into their curriculum.

Medical students' perceptions of emerging learning communities at one medical school.

PURPOSE: In 1999, the University of Iowa Roy J. and Lucille A. Carver College of Medicine (UICCOM) established a student management model consisting of four student-style learning communities (LCs), each comprising one quarter of the students from each class, with the goal of fostering student connection, excellence, learning, leadership, and service. The authors present results of a prospective evaluation of medical students' perceptions of emerging LCs and their impact on medical student life at UICCOM. METHOD: A two-page questionnaire, administered in 1999 and again in 2003 to all second-through fourth-year and MD/PhD students, assessed connections among students from different years of study, students' participation in activities, anticipated/perceived benefits of LCs, concerns about LCs, and the impact of LCs on students' perceptions of the learning environment. Questions were open ended or Likert scaled; statistical analyses were descriptive, parametric, and nonparametric. RESULTS: Comparison of results between 1999 and 2003 demonstrated increased connections between students and participation in LC activities, positive perceptions of the overall learning environment, increased access to faculty and staff, and increased involvement in leadership and service activities. Student concerns included continued obstacles to involvement in LCs for third- and fourth-year students. CONCLUSIONS: This prospective evaluation demonstrates that LCs can contribute to more positive perceptions of the learning environment and increased interaction between students throughout medical school. LCs seem to increase student leadership development and engagement in the broader community. Further investigation is needed to determine how these potential benefits of LCs can be maximized and made more accessible to all students.

Medical Emergency During Flight: A Team-Building Exercise.

INTRODUCTION: While teams are a central component in health care, many professionals who function in them have had little, if any, formal training on how to develop an effective team. Medical educators and trainers have used many different approaches to teach the basic skills and knowledge of team effectiveness and how team members can best interact with each other. To make team training more realistic, experiential exercises have been used. One of the more popular categories of experiential activities is survival exercises in which team members are given a scenario and required to make decisions that ultimately decide whether the team survives the ordeal. METHODS: This activity describes a situation in which a medical professional is traveling on an airliner when a request for medical assistance occurs. Participants can include clinically experienced medical students, residents, fellows, and faculty physicians. The activity can be used as a stand-alone exercise or in conjunction with another team topic, such as communications or decision making. It has also been effective as an icebreaker for teams working together during a workshop. RESULTS: Approximately 100 medical students, residents, and faculty from anesthesia, family medicine, pediatrics, and internal medicine have participated in this activity. It has been very well received and generated a great deal of discussion of both medical knowledge and team-building skills. DISCUSSION: This activity, which can be used to examine team communications, decision making, leadership, and conflict management, is suitable for health care professionals either through intra- or interprofessional training.

The Impact of Using Mean Versus Mode When Assessing Resident Competency.

BACKGROUND: The Accreditation Council for Graduate Medical Education Milestone Project was implemented in 2014 to standardize assessments and progression of residents. While it is recommended that milestones not be used as tools for direct assessments of resident competency, many programs have used or adapted milestone tools for this purpose. OBJECTIVE: We sought to explore use of the most frequent milestone level at which a resident was evaluated (ie, the mode), and compared this to the standard practice of using the arithmetic mean for summarizing performance. METHODS: We reviewed all Family Medicine Milestone evaluations from 1 program for the first 2 academic years of milestone implementation. Mean and mode scores were calculated across 24 unique residents, 841 evaluation forms, and 5897 measurements. The proportion of overestimation errors (where the mean is at least 0.5 larger than the mode) and underestimation errors (where the mean is at least 0.5 less than the mode) were then compared across resident training year and subcompetency. RESULTS: For the 24 residents, an estimation error occurred in 175 of 792 of the comparisons (22%). Of these errors, 118 (67%) were overestimation errors. First-year residents accounted for 55% (96 of 175) of all estimation errors. All subcompetencies had some estimation errors, with 6 having greater than 5%. CONCLUSIONS: If the trend for using the milestones as stand-alone assessment tools is to continue, aggregating data by using frequency distributions and mode would be a more stable and appropriate approach given their nominal or, at best, ordinal nature.

Increasing departmental and college-wide faculty development opportunities through a teaching scholars program.

The University of Iowa Teaching Scholars Program was initiated in 1999 at the University of Iowa Carver College of Medicine (CCOM) with the overall goal of promoting leadership in faculty development related to teaching skills. Specific goals of this program are (1) to promote the development of a cadre of faculty members who have the skills to implement faculty development within their departments and the CCOM; (2) to increase departmental involvement in faculty development efforts; (3) to increase resources available for dissemination of college-wide faculty development efforts; and (4) to acknowledge the extra effort faculty put into developing their skills and knowledge in medical education and in providing continuing education to their faculty colleagues. All clinical and basic science departments in the CCOM are given the opportunity to have a faculty member participate in the program. Unlike other programs reported in the literature, competitive decisions for program participation are made at the departmental level. The three-year program combines monthly meetings and other activities to train faculty to provide faculty development in teaching skills. Each scholar develops and implements a project to address departmental faculty development needs as well as needs of other departments in the CCOM. To date (2006), 50 faculty members from 19 different departments have participated in the program with an average of 12 scholars per class. The program has resulted in a substantial increase in departmental and college-wide faculty development programming and has had a positive impact on individual scholars' teaching skills and leadership roles.

Using patient-generated cases to teach students skills in responding to patients' emotions.

Responding to patients' emotions has been identified as a core skill in medical interviewing. To give medical students realistic practice in responding to patients' emotions, an exercise was initiated in which simulated patient (SP) cases were developed in collaboration with SPs. Small groups were visited by two SPs, who portray emotional scenarios based on symptoms for which they had previously sought a doctor's care or considered seeking care. SPs also identified circumstances that would provoke emotional reactions for their case. Students and facilitators rated this activity highly. Benefits included more realistic case portrayals, less training time for SPs and more efficient use of SPs.

Dissection and dissection-associated required experiences improve student performance in gross anatomy: Differences among quartiles.

To promote student learning, educational strategies should provide multiple levels of engagement with the subject matter. This study investigated examination data from five first year medical gross anatomy class cohorts (692 students) to determine if enhanced student performance was correlated with learning through dissection in a course that used a rotating dissection schedule coupled with peer teaching and other associated experiences. When students performed two of five weekly dissections for a given unit, their average scores on both laboratory and written examinations tended to increase as compared to when they had completed only one week of dissection (P < 0.01). However, these performance gains differed across the class strata and were related to the amount of dissection completed. Students in the upper quartile (UQS) of the class benefited when they had dissected once (92.8%) or twice (92.4%), and these scores were significantly higher than those attained when learning from peers (90.3%, P < 0.01). Students in the lower quartile (LQS) benefited most from the dissection experiences, where practical examination performance was better (77.8% and 80.5%) than when these students learned material from their peers (73.7%, P < 0.01). Although UQS benefited from dissection, LQS benefited to a greater extent in both the practical and written examinations with dissection. Although limited, these data suggest that dissection, coupled with associated educational activities, is an effective pedagogical strategy for learning. Further investigation is required to evaluate the concomitant benefits of peer teaching that are associated with the dissection experience. Anat Sci Educ 9: 238-246. © 2015 American Association of Anatomists.

Using reflection activities to enhance teaching about end-of-life care.

BACKGROUND: While reflection on experiences and attitudes related to death can be an important component of learning to care for the dying, opportunities within the medical school curriculum to promote learner reflection are often limited. OBJECTIVE: To describe implementation and evaluation of activities in an end-of-life curriculum to promote self-reflection and student concerns and thoughts revealed through reflection exercises. DESIGN: Within a lecture-based course on end-of-life care, second-year medical students participated in four activities to promote self-reflection, including: (1) visualizing their own deaths; (2) documenting their experiences with death; (3) writing essays reacting to course content; and (4) participating in physician-led small group sessions. MEASUREMENTS: Student reaction essays and small group evaluations. RESULTS: Qualitative analysis of student reaction essays (2002-2004; total, n = 522) revealed nine major themes in student concerns and thoughts related to caring for the dying. These included: (1) expressing emotions; (2) personal grief and emotional detachment; (3) communicating effectively; (4) spending enough time; (5) feeling ill-prepared to deal with death; (6) losing a loved one; (7) shifting emphasis from curing to caring; (8) listening to patients and respecting their decisions and (9) previous negative end-of-life experiences. Analysis of essays and evaluations assessed the impact of the various reflection activities and demonstrated that these activities allowed students to critically examine and discuss their experiences and concerns regarding providing end-of-life care. CONCLUSIONS: A variety of activities can be incorporated successfully into a largely didactic curriculum to promote student reflection on their attitudes and concerns related to end-of-life care, thereby laying an important foundation for their future practice in caring for the dying. In addition, analysis of student reflection essays can serve as an important curriculum evaluation tool.

Using a peer evaluation system to assess faculty performance and competence.

BACKGROUND AND OBJECTIVES: Identification of reliable methods to evaluate the newly mandated American Board of Medical Specialties (ABMS)/Accreditation Council for Graduate Medical Education (ACGME) competencies of the board-certified physician is in its early stages. In this study, we evaluated a comprehensive faculty peer evaluation system designed to assess the six competencies as well as faculty performance in their primary departmental roles and teaching. METHODS: Using a one-page form containing 19 items, all faculty members evaluated all other faculty within a single department. Annual individual faculty reviews included discussion of these aggregated evaluations. RESULTS: The reliabilities for the ACGME competency subscales ranged from .61 to .79. While overall scores were relatively high, there was variability across faculty. Factor analysis demonstrated that evaluation items load onto three scales. The first relates to clinical practice and teaching, the second to departmental citizenship, and the third to research. An item related to systems-based practice loaded on none of the factors. Research faculty outscored other faculty on the items reflecting research skills. Faculty who had primary administrative responsibility scored higher than other faculty on measures related to role within the department. No differences in subgroup scores for clinical skills were observed. CONCLUSIONS: Using a method in which all faculty evaluate each other can result in objective, reliable measures of faculty performance.

Assessing effective teaching: what medical students value when developing evaluation instruments.

PURPOSE: To investigate what criteria medical students would value and use in assessing teaching skills. METHOD: Fourth-year medical students at the University of Iowa Carver College of Medicine enrolled in a teaching elective course are required to design and use an evaluation instrument to assess effective teaching. Each class uses a similar process in developing their instruments. Since the first class in spring 2007, 193 medical students have created 36 different instruments. Three faculty evaluation experts conducted a thematic analysis of the instruments and coded the information according to what was being evaluated and what types of ratings were indicated. The data were submitted to a fourth faculty reviewer, who synthesized the information and adjusted the codes to better capture the data. Common themes and categories were detected. RESULTS: Four themes were identified: content (instructor knowledgeable, teaches at level of learner, practical information), learning environment, teacher personal attributes, and teaching methods. Thirty-two descriptors were distinguished across the 36 instruments. Thirteen descriptors were present in 50% or more of the instruments. The most common rating systems were Likert scales and open comments. CONCLUSIONS: Fourth-year medical students can offer an eclectic resource for evaluating teaching in the classroom and the clinic. Using the descriptors that were identified in greater than 50% of the evaluation instruments will provide effective measures that can be incorporated into medical teacher evaluation instruments.

Percutaneous injury, blood exposure, and adherence to standard precautions: are hospital-based health care providers still at risk?

To examine factors associated with blood exposure and percutaneous injury among health care workers, we assessed occupational risk factors, compliance with standard precautions, frequency of exposure, and reporting in a stratified random sample of 5123 physicians, nurses, and medical technologists working in Iowa community hospitals. Of these, 3223 (63%) participated. Mean rates of hand washing (32%-54%), avoiding needle recapping (29%-70%), and underreporting sharps injuries (22%-62%; overall, 32%) varied by occupation (P<.01). Logistic regression was used to estimate the adjusted odds of percutaneous injury (aOR(injury)), which increased 2%-3% for each sharp handled in a typical week. The overall aOR(injury) for never recapping needles was 0.74 (95% CI, 0.60-0.91). Any recent blood contact, a measure of consistent use of barrier precautions, had an overall aOR(injury) of 1.57 (95% CI, 1.32-1.86); among physicians, the aOR(injury) was 2.18 (95% CI, 1.34-3.54). Adherence to standard precautions was found to be suboptimal. Underreporting was found to be common. Percutaneous injury and mucocutaneous blood exposure are related to frequency of sharps handling and inversely related to routine standard-precaution compliance. New strategies for preventing exposures, training, and monitoring adherence are needed.