Abstract

PURPOSE:

Given the prevalence of physical inactivity among American adults, convenient, low-cost interventions are strongly indicated. This study determined the 6- and 12-month effectiveness of telephone interventions delivered by health educators or by an automated computer system in promoting physical activity.

DESIGN:

Initially inactive men and women age 55 years and older (N = 218) in stable health participated. Participants were randomly assigned to human advice, automated advice, or health education control.

MEASURES:

The validated 7-day physical activity recall interview was used to estimate minutes of moderate to vigorous physical activity. Physical activity differences by experimental arm were verified on a random subsample via accelerometry.

RESULTS:

Using intention-to-treat analysis, at 6 months, participants in both interventions, although not differing from one another, showed significant improvements in weekly physical activity compared with controls. These differences were generally maintained at 12 months, with both intervention arms remaining above the target of 150 min per week of moderate to vigorous physical activity on average.

CONCLUSION:

Automated telephone-linked delivery systems represent an effective alternative for delivering physical activity advice to inactive older adults.

Objective: Findings from the Women's Health Initiative (WHI) failed to confirm previous expectations about the net benefits of menopausal hormone therapy and have resulted in reduced use of these medications. The aim of this study was to evaluate women's awareness and knowledge concerning the risks and benefits of hormone therapy.

Design: A nationally representative survey was completed for a sample of 781 women (ages 40-60 y, mean 49 y) drawn from the Knowledge Networks Internet panel 24 months after publication of the first WHI findings, in June 2004. Responses were weighted to reflect the demographics of the US population. The main outcome measures were awareness of WHI and knowledge of its findings. An aggregate score was constructed to assess women's knowledge of the impact of hormone therapy on seven key disease outcomes. Logistic regression determined the independent predictors of (1) WHI awareness and (2) a positive aggregate knowledge score, reflecting appropriate responses about risks and benefits.

Results: Only 29% of women were aware of the WHI results. Only 40% of women had a positive aggregate knowledge score. Aside from awareness of WHI and independent of other factors, knowledge scores were lower for African American women (odds ratio, 0.4; 95% CI: 0.2-0.6) and among women with less education (odds ratio, 0.5; 95% CI: 0.3-0.9). Knowledge was greatest for breast cancer and osteoporosis outcomes and most limited for colorectal cancer and memory loss.

Conclusion: Surveyed women had limited awareness and knowledge of the WHI results, suggesting limited diffusion. Targeting younger, less educated, and African American women is warranted.

Background: In 2002, the Accreditation Council on Graduate Medical Education enacted regulations, effective 1 July 2003, that limited work hours for all residency programs in the United States.

Objective: To determine whether work-hour regulations were associated with changes in mortality in hospitalized patients.

Design: Comparison of mortality rates in high-risk teaching service patients hospitalized before and after July 2003, with nonteaching service patients used as a control group.

Setting: 551 U.S. community hospitals included in the Healthcare Cost and Utilization Project's Nationwide Inpatient Survey between January 2001 and December 2004.

Patients: 1,511,945 adult patients admitted for 20 medical and 15 surgical diagnoses.

Measurement: Inpatient mortality.

Results: In 1,268,738 medical patients examined, the regulations were associated with a 0.25% reduction in the absolute mortality rate (P = 0.043) and a 3.75% reduction in the relative risk for death. In subgroup analyses, particularly large improvements in mortality were observed among patients admitted for infectious diseases (change, -0.66%; P = 0.007) and in medical patients older than 80 years of age (change, -0.71%; P = 0.005). By contrast, in 243 207 surgical patients, regulations were not associated with statistically significant changes (change, 0.13%; P = 0.54).

Limitations: Teaching status was assigned according to hospital characteristics because direct information on each patient's provider was not available. Results reflect changes associated with the sum of regulations, not specifically with caps on work hours.

Conclusions: The work-hour regulations were associated with decreased short-term mortality among high-risk medical patients in teaching hospitals but were not associated with statistically significant changes among surgical patients in teaching hospitals.

Objective: To understand better the relationship between substance-use disorder treatment and abstinence self-efficacy, more information is needed about what factors predict greater abstinence self-efficacy.

Method: Participants (n = 2,350) from 88 community residential facilities were assessed at treatment entry and 1-year follow-up. Treatment providers reported on patients' engagement in specific components of treatment. After examining univariate associations with self-efficacy, a multiple regression analysis was used to test a model of patient- and treatment-related predictors of self-efficacy 1 year after treatment.

Results: More years of education, lower baseline substance- related problems, and higher baseline confidence in abstinence were associated with higher posttreatment self-efficacy. After controlling for these patient factors, patients who were more engaged in skills-training activities and who inspired providers' confidence in their ability to remain abstinent had higher 1-year self-efficacy.

Conclusions: The development of higher levels of posttreatment abstinence self-efficacy is driven not only by what a patient brings to treatment but by the activities a patient engages in during treatment. Because of the close relationship between self-efficacy and treatment outcomes, providers may want to target patients with low self- efficacy for interventions that focus on skills-training techniques.

Aim: This study compared matched samples of substance use disorder (SUD) patients in Swiss and United States (US) residential treatment programs and examined the relationship of program characteristics to patients' substance use and psychosocial functioning at a 1-year follow-up.

Design and Setting: The study used a prospective, naturalistic design and a sample of 10 public programs in the German-speaking part of Switzerland and 15 US public treatment programs.

Participants: A total of 358 male patients in Swiss programs were matched on age, marital status and education with 358 male patients in US programs. A total of 160 Swiss and 329 US patient care staff members also participated.

Measurement: Patients completed comparable inventories at admission, discharge and 1-year follow-up to assess their substance use and psychological functioning and receipt of continuing care. Staff members reported on program characteristics and their beliefs about substance use.

Findings: Compared to Swiss patients, US patients had more severe substance use and psychological problems at intake and although they did not differ on abstinence and remission at follow-up, had somewhat poorer outcomes in other areas of functioning. Swiss programs were longer and included more individual treatment sessions; US programs included more group sessions and were more oriented toward a disease model of treatment. Overall, length of program, treatment intensity and 12-step orientation were associated with better 1-year outcomes for patients in both Swiss and US programs.

Conclusions: The sample of Swiss and US programs studied here differed in patient and treatment characteristics; however, in general, there were comparable associations between program characteristics and patients' 1-year outcomes. These findings suggest that associations between treatment processes and patients' outcomes may generalize from one cultural context to another.

Objective: To determine the effects of quality improvement strategies on promoting adherence to interventions for prevention of selected (surgical site infections (SSI), central line-associated bloodstream infections (CLABSI), ventilator-associated pneumonia (VAP), and catheterassociated urinary tract infections (CAUTI)) healthcare-associated infections (HAIs), and on HAI rates.

Data Sources: MEDLINE® and Cochrane Collaboration's Effective Practice and Organisation of Care registry. We also reviewed the reference lists of systematic reviews and included studies, and contacted experts.

Search Strategy and Inclusion Criteria: We included randomized and quasi-randomized controlled trials, controlled before-after studies, interrupted time series, and simple before-after studies that reported either HAI rates or rates of adherence to target preventive quality improvement (QI) interventions for any of the four target HAIs. QI strategies were classified as clinician education, patient education, audit and feedback, clinician reminders, organizational change (including revision of professional roles, staffing changes, and total quality management/continuous quality improvement), and financial or regulatory incentives. We targeted hand hygiene as a preventive intervention for all HAIs. The target preventive interventions specific to SSI were appropriate perioperative antibiotic prophylaxis (including appropriate antibiotic selection, timing, and duration), perioperative glucose control, and decreasing shaving of the operative site. For CLABSI, we targeted adherence to maximal sterile barrier precautions, use of chlorhexidine for skin antisepsis, and avoidance of femoral catheterization. For VAP, we targeted semirecumbent patient positioning and daily assessment of readiness for ventilator weaning. For CAUTI, we targeted reduction in unnecessary catheter use and adherence to aseptic catheter insertion and catheter care. Our primary outcomes were the rate of HAI (defined as infections per 100 cases for SSI and infections per 1,000 device-days for CLABSI, VAP, and CAUTI) and the rate of adherence to preventive interventions (defined as the percentage of patients at risk who received the preventive intervention). Secondary outcomes included effects on costs and adverse effects associated with the interventions.

Data Collection and Analysis: Two reviewers independently abstracted data. Due to heterogeneity in study populations, QI strategies, preventive interventions, and outcomes, no formal quantitative analysis was attempted. We assessed study quality based on prespecified criteria for internal and external validity.

Main Results: Sixty-four studies met all inclusion criteria; 28 studies addressed prevention of SSI, 19 CLABSI prevention, 12 VAP prevention, and 10 CAUTI prevention. Three studies targeted prevention of multiple HAIs. The study methodologic quality was generally poor, as 52 of 64 included studies were simple before-after studies, and most of these (33 of 52) reported data at only one time point before and after the intervention. The majority of included studies reported infection rates, but did not report rate of adherence to preventive interventions. Baseline HAI rates were generally above the median rates reported by the Centers for Disease Control and Prevention's National Nosocomial Infection Surveillance System (NNIS).

• Studies addressing surgical site infections: The majority of studies targeted provision of appropriate antibiotic prophylaxis (22 of 28 studies), using combinations of educational interventions, audit and feedback, and clinician reminders. Sixteen of these studies reported data on adherence to appropriate antibiotic prophylaxis guidelines. Clinician reminders were effective at improving appropriate prophylaxis in two controlled studies; educational interventions with audit and feedback were effective in three multicenter studies (two interrupted time series and one simple before-after study.) No QI strategies were clearly effective at reducing SSI rates or improving adherence to other targeted preventive interventions.
• Studies addressing central line-associated bloodstream infection: Active educational interventions for clinicians appeared effective at reducing CLABSI rates, based on two controlled before-after studies, one interrupted time series, and four simple before-after studies of relatively good methodologic quality. Two of these studies combined education with an explicit checklist for adherence to insertion site practices and allowed nurses to stop the procedure if the checklist was not followed, a strategy worthy of future study.
• Studies addressing ventilator-associated pneumonia: Active educational interventions (including use of Web-based and video tutorials) appeared to reduce VAP rates, based on evidence from two simple before-after studies. Conclusions in this area are especially limited as we did not identify any controlled studies.
• Studies addressing catheter-associated urinary tract infection: Printed or computer-based reminders to physicians, coupled with an "automatic stop order", appear to be effective at reducing the duration of urethral catheterization (based on two controlled studies and three simple before-after studies.)

• Use of printed or computer-based reminders with automatic stop orders to reduce unnecessary urethral catheterization.
• Printed or computer-based reminders to improve surgical antibiotic prophylaxis
• Active educational interventions with use of of checklists to improve adherence to central line insertion practices
• Active educational interventions such as tutorials to improve adherence to preventive interventions for ventilator-associated pneumonia.

Objectives:

Despite the availability of evidence-based guidelines for the management of pediatric and adult asthma, there remains a significant gap between accepted best practices for asthma care and actual care delivered to asthma patients. The purpose of this systematic review was to evaluate the evidence that quality improvement (QI) strategies can improve the processes and outcomes of outpatient care for children and adults with asthma.

Data Sources:

We searched four literature sources: the Cochrane Effective Practice and Organization of Care (EPOC) Group database (1/1966 to 4/2006), MEDLINE® (1/1966 to 4/2006), the Cochrane Consumers and Communication Group database (1/1966 to 5/2006), and bibliographies of retrieved articles.

Review Methods:

We sought English language studies of interventions that included one or more QI strategies (e.g., patient education, provider education, audit and feedback) for the outpatient management of children or adults with asthma. Included studies were required to be either randomized controlled trials, controlled before-after trials, or interrupted time series trials. The four primary types of outcomes of interest were:

1. Measures of clinical status (e.g., asthma symptoms, spirometric measures).
2. Measures of functional status (e.g., days lost from work or school).
3. Measures of health services utilization (e.g., hospital admissions).
4. Measures of adherence to guidelines (e.g., number of patients given prescriptions for inhaled corticosteroids).

Results:

We identified 3,843 potentially relevant articles, of which 200 articles describing 171 studies met our inclusion criteria. These studies exhibited substantial variation in terms of the types of strategies evaluated. However, using broad, pragmatic categories for quality improvement strategies, 100 included at least some component of patient education, 94 studies included some component of self-monitoring or self-management, 27 included some component of organizational change, and 19 included provider education, among others. The studies also evaluated heterogeneous patient populations, but these could be broadly categorized into those that targeted children or adolescents with asthma or their families (79 studies) and outpatient populations with asthma comprised typically of adults (92 studies).

Among all studies of pediatric asthma evaluating self-monitoring, self-management, or patient education interventions, those directed at parents or caregivers, as opposed to at the children themselves and not their parents, were more likely to be associated with a statistically significant improvement in clinical outcomes (e.g., improvements in asthma symptoms or spirometric measures (p=0.02)). Self-monitoring, self-management, or patient education interventions for general populations or adults with asthma were associated with improvements in percent predicted forced expiratory volume in one second, or FEV1 (weighted mean difference: 2.92 percent predicted FEV1; 95% CI 0.92, 4.92; p=0.004), and mean peak flow (weighted mean difference: 27.95 L/min; 95% CI 10.75, 45.15; (p=0.01).

QI interventions that are based explicitly on a theoretical framework, provide multiple educational sessions, have longer durations, and use combinations of instructional modalities (e.g., small group teaching with role-playing and handouts) are more likely to result in improvements for patients than interventions lacking these characteristics. When taken as a group, the improvements reported in the included studies were often statistically significant but possibly only of borderline clinical significance.

Conclusions:

A wide variety of types of QI interventions have been found to improve the outcomes and processes of care for children and adults with asthma. Young children with asthma benefit most from QI strategies that also include their caregivers or parents. General populations with asthma can have clinically significant improvements in spirometric measures after participating in self-monitoring, self-management, or patient education interventions-especially interventions that are based on theoretical frameworks, are of relatively long durations, and utilize combinations of educational modalities.

Abstract

PURPOSE:

To provide the first national data on the nature, extent, and consequences of withholding among life science trainees.

METHOD:

In 2003, the authors surveyed 1,077 second-year doctoral students and postdoctoral fellows in life sciences at 50 U.S. universities, with a comparison group of trainees in computer science and chemical engineering. The study variables examined trainees' exposure to and the consequences of data withholding.

RESULTS:

Two hundred forty-six trainees (23.0%) reported that they had asked for and been denied access to information, data, materials, or programming associated with published research and 221 (20.6%) to unpublished research. Eighty-five trainees (7.9%) reported that they had denied another academic scientist's request(s) related to their own published research. Five hundred thirty-three trainees (50.8%) reported that withholding had had a negative effect on the progress of their research, 508 (48.5%) on the rate of discovery in their lab/research group, 472 (45.0%) on the quality of their relationships with academic scientists, 346 (33.0%) on the quality of their education, and 299 (28.5%) on the level of communication in their lab/research group. Trainees denied access to research were significantly more likely to report that data withholding had had a negative effect on several aspects of the educational experience.

CONCLUSIONS:

Data withholding had demonstrated negative effects on trainees. The life sciences, more so than chemical engineering or computer science, will have to address this issue among its trainees. Failure to do so could result in delayed research, inefficient training, and a culture of withholding among future life scientists.

Objective: To compare and contrast proposed definitions of metabolic syndrome in pediatrics, and to determine prevalence of metabolic syndrome in preadolescent females when applying different criteria.

Study Design: A literature review on definitions of metabolic syndrome and cardiovascular "risk factor clustering" in children and adolescents published in the past decade. Pediatric definitions of metabolic syndrome were then applied to a community-based study of 261 black preadolescent females (Girls Health Enrichment MultiSite studies [GEMS]) and a school-based, cross-sectional study of 240 ethnically-diverse preadolescent females (Girls Activity, Movement and Environmental Strategy [GAMES]) who had a baseline physical examination and fasting morning blood sample.

Results: Agreement among pediatric definitions of metabolic syndrome was poor. The prevalence of MS and cardiovascular risk factor clustering ranged from 0.4% to 23.0% for GEMS and 2.0% to 24.6% for GAMES with definitions adapted from the National Cholesterol Education Program Adult Treatment Panel III, and 0% to 15.3% for GEMS and 0.4% to 15.8% for GAMES using modified criteria from the World Health Organization.

Conclusions: The prevalence of metabolic syndrome in preadolescent girls varies widely because of disagreement among proposed definitions of metabolic syndrome in pediatrics. Further investigation is needed to determine which metabolic factors and their respective cut points should be used to identify children at risk for development of clinical disease.

Objective:

To describe an academic medical center's experience with housestaff involvement in the implementation of a new clinical information system, with particular emphasis on resident contributions in tailoring the technology to meet the workflow needs of the center.

Methods:

A resident advisory group was formed to tailor the new system. Housestaff developed user interface screens to streamline presentation of patient data. Order sets were developed, offering an opportunity for education in standardized care and "best practice." A rounds report displays aggregated patient specific data for use in prerounding and rapid assessment of patient information. A sign-out tool was designed to facilitate transfer of information during change of shift.

Results:

Residents contributed in tailoring the technology to meet the workflow needs of our academic medical center setting.

Conclusion:

The design and implementation of a new clinical information system can be used to introduce concepts important in practice-based learning and systems-based practice.