Biomedical subjects

Bradley Evanoff

Publications and source records attributed to Bradley Evanoff.

9 recordsLinked to original sources

PubMed2007

Predictive factors for incident musculoskeletal disorders in an in-plant surveillance program.

OBJECTIVES: A surveillance program for upper-limb work-related musculoskeletal disorders (UWMSD) based on assessment of health and risk factors was implemented between 1996 and 2000 in a large shoe factory with overall high levels for biomechanical exposure. The study aimed to identify workers with an increased risk of UWMSD incidence. METHODS: In 1996, 1997 and 2000, 166 workers filled out a questionnaire and underwent a standardized physical examination. Factors from the 1996 questionnaire (general, personal and occupational factors) associated with UWMSD incidence in 1997 were selected. The predictive role of these variables was studied with a logistic model, taking into account also gender and age. The performance of a risk score based on this model was studied in 2000, using the Wilcoxon test and ROC curves. RESULTS: In 1997, 28 incident cases of UWMSD were observed (N = 107, 26.2%). Work pace and prior history of UWMSD were the only factors significantly associated with UWMSD incidence in 1997 (respectively 33% versus 13%, P = 0.02 and 58% versus 22%, P = 0.01). Psychological distress (36% versus 21%, P = 0.10), physical fatigue (35% versus 22%, P = 0.14), repetitiveness (30% versus 18%, P = 0.17) and task precision (33% versus 21%, P = 0.16) were also included in the logistic model for 1997 UWMSD incidence. Controlling for these variables, prior history of UWMSD remained associated with incidence in 1997 (OR = 5.5, 95% CI = 1.4-21.8). In the period from 1997 to 2000, 24 incident cases were observed (N = 102, 23.5%). The risk score, based on variables from the 1997 model, was significantly higher for incident cases (median = 6 in incident cases versus 4.5 for healthy subjects, P = 0.02). ROC curves indicated that the highest agreement reached 67% for sensitivity and 59% for specificity. Among subjects who did not change their task (N = 71, 18 incident cases), performance reached 66% for specificity with the same sensitivity. CONCLUSION: These results suggest that surveillance programs of UWMSD at a company level are possible even with overall high levels for biomechanical exposure and should take into account occupational and personal factors, including prior history of UWMSD.

Adult↗

PubMed2006

Describing nurses' work: combining quantitative and qualitative analysis.

OBJECTIVE: To better understand nursing activities and working conditions. BACKGROUND: Nursing practice involves astute clinical decision making and the competent delivery of nursing care procedures. To complete nursing procedures, nurses must simultaneously organize and reorganize priorities and manage changing clinical information for multiple patients. Few researchers have examined the specific nature of nurses' activities and the effect of the environment on their work. METHODS: Quantitative and qualitative methods were used to collect data on 7 nurses engaged in nursing activities. Examples of methods include link analysis, subject matter expert, task analysis, cognitive pathway, and "stacking." Data collection focused on how nurses managed priorities, changing clinical information, and interruptions. RESULTS: The "cognitive pathway" graphically depicts the nature of nurses' work. Specifically, it reveals the shifting of the nurse's attention from patient to patient and the occurrence of interruptions. "Stacking" shows the number of tasks a nurse must balance at any one time. On average, nurses had 10 or more activities waiting to be performed and experienced 3.4 interruptions/hr. CONCLUSION: These methods provide unique insight into the dynamic nature of patient care and nursing work. APPLICATION: Extension of the methods demonstrated here may be useful in guiding efforts to change the work of nursing to better provide quality care and less stressful work environments.

Evaluation Studies as Topic↗

PubMed2005

Assessing case definitions in the absence of a diagnostic gold standard.

Optimal case definition is important in epidemiological research, but can be problematic when no satisfactory gold standard is available. In particular, difficulties arise where the pathology underlying a disorder is unknown or cannot be reliably diagnosed. This problem can be overcome if diagnoses are viewed not necessarily as labels for disease processes, but more generally as a useful method for classifying people for the purpose of preventing or managing illness. With this perspective, the value of a case definition lies in its practical utility in distinguishing groups of people whose illnesses share the same causes or determinants of outcome (including response to treatment). A corollary is that the best-case definition for a disorder may vary according to the purpose for which it is being applied.

Diagnosis↗

PubMed2005

A subjective rating scale for evaluating the appearance outcome of autologous breast reconstruction.

BACKGROUND: Subjective evaluations of the appearance outcome of autologous breast reconstruction are usually performed by surgeons and not by patients. Such surgeon-based evaluations are rarely reproducible and show little interobserver agreement. Among existing patient-based subjective scales, none has been tested for reliability, and no study to date has evaluated the reliability when both surgeons and patients use the same scale. METHODS: The authors developed a new instrument for assessing the appearance of autologous breast reconstruction. The instrument's use by four plastic surgeons and 36 transverse rectus musculocutaneous flap patients was assessed for test-retest reliability, internal consistency, surgeon-patient and surgeon-surgeon interobserver agreement, and interitem correlation. RESULTS: The instrument demonstrated high overall internal consistency when used by patients (Cronbach alpha = 0.92). Test-retest reliability on each aesthetic subitem in the scale was higher among patients than among surgeons (weighted kappa range, 0.57 to 0.88 versus 0.25 to 0.66). Interrater agreement was poor among both patients and surgeons (weighted kappa, 0.0 to 0.39). Poor correlation was found between surgeons' evaluations of aesthetic subitems and patients' overall appearance and overall satisfaction scores. CONCLUSIONS: The instrument both demonstrates better internal consistency and is more reliable when used by patients to evaluate their own reconstructions. By contrast, the instrument's use by surgeons is not as internally consistent and reproducible. The poor interobserver agreement among surgeons and the weak correlation between surgeon and patient evaluations suggest that patient input regarding item-specific criteria should be included in evaluations of breast reconstructions.

Esthetics↗

PubMed2005

A case-control study of patient, medication, and care-related risk factors for inpatient falls.

OBJECTIVE: To comprehensively analyze potential risk factors for falling in the hospital and describe the circumstances surrounding falls. DESIGN: Case-control study. Data on potential risk factors and circumstances of the falls were collected via interviews with patients and/or nurses and review of adverse event reports, medical records, and nurse staffing records. SETTING: Large urban academic hospital. PATIENTS: Ninety-eight inpatients who fell and 318 controls matched on approximate length of stay until the index fall. MEASUREMENTS AND MAIN RESULTS: In a multivariate model of patient-related, medication, and care-related variables, factors that were significantly associated with an increased risk of falling included: gait/balance deficit or lower extremity problem (adjusted odds ratio [aOR], 9.0; 95% confidence interval [CI], 2.0 to 41.0), confusion (aOR, 3.6; 95% CI, 1.6 to 8.4), use of sedatives/hypnotics (aOR, 4.3; 95% CI, 1.6 to 11.5), use of diabetes medications (aOR, 3.2; 95% CI, 1.3 to 7.9), increasing patient-to-nurse ratio (aOR, 1.6; 95% CI, 1.2 to 2.0), and activity level of "up with assistance" compared with "bathroom privileges" (aOR, 8.7; 95% CI, 2.3 to 32.7). Urinary or stool frequency or incontinence was of borderline significance (aOR, 2.3; 95% CI, 0.99 to 5.6). Having one or more side rails raised was associated with a decreased risk of falling (aOR, 0.006; 95% CI, 0.001 to 0.024). CONCLUSIONS: Patient health status, especially abnormal gait or lower extremity problems, medications, as well as care-related factors, increase the risk of falling. Fall prevention programs should target patients with these risk factors and consider using frequently scheduled mobilization and toileting, and minimizing use of medications related to falling.

Accidental Falls↗

PubMed2005

Ergonomic evaluation: part of a treatment protocol for musculoskeletal injuries.

Ergonomic analyses and interventions are used as primary prevention methods to reduce physical stressors in the workplace and to prevent work-related musculoskeletal disorders (WMSDs). These methods can also be used for the treatment of injured employees. In this study, 103 employees with WMSDs resulting in more than 5 days away from usual work received an ergonomic evaluation which consisted of observation of usual work tasks, recommendations to minimize identified stressors, and case coordination. The goal of the intervention was to make simple job changes that would assist employees to return safely to usual job duties. The process for implementing this protocol for health care, airline, and university employees is described. The results show that after ergonomic evaluations were performed, the majority of recommendations were fully or partially (89%) implemented. Behavior changes were more likely to occur than administrative and equipment changes (p < .001). Occupational health nurses can use a similar program to enhance treatment plans for clients with WMSDs.

Aviation↗

PubMed2004

Mapping the nursing process: a new approach for understanding the work of nursing.

The work of nursing is nonlinear and involves complex reasoning and clinical decision making. The use of human factors engineering (HFE) as a sole means for analyzing the work of nursing is problematic. Combining HFE analysis with qualitative observation has created a new methodology for mapping the nursing process. A cognitive pathway offers a new perspective for understanding the work of nursing and analyzing how disruptions to the nursing process may contribute to errors in the acute care environment.

Acute Disease↗

PubMed2002

Is disability underreported following work injury?

Existing national data may underreport the full burden of occupational injuries and illnesses. This study sought to provide more complete reporting and to assess disability that persisted following return to work. Workers (n = 205) with a musculoskeletal injury resulting in 5 or more days of lost time or restricted duty were recruited from three employers. Data on work status and functional limitations were derived from multiple sources including administrative records, medical records, and patient interviews at baseline and 6 months. Results indicate that many workers reported continuing difficulties functioning at work following return to full duty. Measures of health-related quality of life improved over 6 months, but bodily pain and physical functioning scores remained lower than expected based on national averages. Sixteen percent of workers were reinjured within a year following initial injury. Following return to work, many workers experienced reinjury or reported persistent limitations in function 6 months following injury. Based on study findings the conclusion is drawn that OSHA logs may provide accurate measures of initial episodes of time loss from work but may under-represent the full magnitude of lost time following work injury.

Accidents, Occupational↗

PubMedDate not supplied

Understanding the cognitive work of nursing in the acute care environment.

OBJECTIVE: To combine human factors engineering techniques with qualitative observation of nurses in practice to analyze the nature of nurses' cognitive work and how environmental factors create disruptions that pose risks for medical errors. BACKGROUND: Few researchers have examined the nature of nurses' cognitive work while in practice with patients. Researchers have described the broad range of thinking processes required in the acute care work setting, but have failed to examine how such processes are conducted and influenced by the complex care environment. A combined research methodology enables researchers to better understand how the nursing process becomes disrupted and the potential influence of this disruption on the safe and effective care of patients. METHODS: An ethnographic study, using mixed-methodological approaches, involved 7 staff registered nurses. The quantitative and qualitative data collection included field observation and summarative interviews. FINDINGS: A high number of cognitive shifts and interruptions, and a nurse's cumulative cognitive load, create the potential for disrupting a nurse's attention focus during care of patients. A majority of interruptions occurred as nurses performed interventions, particularly medication preparation. CONCLUSION: New attention must be given to how care systems and work processes complement or interfere with nurses' cognitive work.

Attention↗