Ergonomic assessment of a critical care unit

Environmental Risk Assessment of Low Back Pain in ICU Nurses: An Instrument Development Study

Aim

To develop a valid, reliable assessment tool to measure risk factors associated to low back pain (LBP) in intensive care unit (ICU) nurses.

Background

LBP is defined as the pain extending from the 12th rib to the iliac crest and often coexists with buttock pain. Nursing has been identified among the top professions at risk of LBP. A mean of 70% prevalence per year in ICU nurses was reported, exceeding those employed in heavy industry. Environmental factors in workplace were also most important risks related to LBP in this population except factors including individual, physical, psychosocial, and lifestyle. However, there is lack of tools to assess environmental risk related to LBP for nurse managers currently.

Methods

Focus group interviews, field research, and panel discussion were used to develop item pool. Two-round expert reviews and preinvestigation were carried out to form initial scale named Environmental Risk Assessing Instrument-Occupational Low Back Pain in Nurses (ERAI-N). A cross-sectional survey with 188 ICU participants in Hunan Province in China was implemented to collect data. Cronbach's alpha, split-half reliability, and test-retest reliability were used to test ERAI-N's reliability. Expert review was performed to test ERAI-N's content validity, and confirmatory factor analysis (CFA) was performed to assess its construct validity, being carried out in IBM SPSS Amos 26 Graphics.

Results

Final version of ERAI-N scale had five dimensions with 18 items that were space, equipment, belief, guideline, and safe culture. ERAI-N scale's score of Cronbach's alpha, Guttman split-half, and intraclass correlation coefficient (ICC) was 0.958, 0.927, and 0.994, respectively. Item-level content validity scores ranged from 0.89 to 1.0, and scale-level content validity was 0.983. Standardized factor loadings ranged from 0.567 to 0.974. Model adjusted fit statistics were as follows: the chi-square statistic and degrees of freedom (χ 2/df) = 3.943, root mean square error of approximation (RMSEA) = 0.071, incremental fit index (IFI) = 0.905, comparative fit index (CFI) = 0.904, parsimony normed fit index (PNFI) = 0.641, and parsimonious comparative fit index (PCFI) = 0.661.

Conclusions

ERAI-N scale had moderate reliability, content validity, and construct validity. Implications for Nursing Management. Designers may use ERAI-N scale to plan the interior layout when design a new ICU. Nurse managers might utilize this instrument as a managing tool to assess whether there is environmental risk factors related to LBP in ICU.

A PRELIMINARY ASSESSMENT OF PHYSICAL WORK EXPOSURES AMONG ELECTRONIC WASTE WORKERS AT AGBOGBLOSHIE, ACCRA GHANA

Occupational exposure associated with unstructured, informal e-waste recycling has received very limited attention. This study aimed to quantify the occupational physical exposures among informal e-waste workers at the largest e-waste site in Africa. A cross-sectional field survey of 163 male e-waste workers was conducted using a self-report occupational physical activity questionnaire, along with direct work observations, and pedometer estimates of walking activity for a subset of workers (n = 42). Results indicated significant differences in self-reported 7-day work exposures among the three main e-waste job categories, namely, collectors (n = 70), dismantlers (n = 73) and burners (n = 20). Prolonged walking, sitting and standing on five or more days in the workweek was frequently reported by collectors (87%), dismantlers (82%) and burners (60%), respectively. Nearly 90% of collectors and burners and 60% of dismantlers reported lifting and carrying on five or more days in the workweek. The exposure combinations identified suggest a risk for musculoskeletal disorders (MSDs). Findings call attention to the need for research examining potential associations between physical exposures and MSDs affecting e-waste workers in Agbogbloshie. The high exposure variability both between and within workers has implications for future exposure assessments conducted in unregulated, informal work settings.

Low back pain characterized by muscle resistance and occupational factors associated with nursing

Objective

to identify the occupational factors associated with low back pain using a surveillance tool and to characterize the low back pain by the resistance of the extensor muscles of the vertebral column among nursing professionals at an Intensive Care Unit.

Methods

Cross-sectional study. The workers answered a questionnaire about occupational factors and participated in a resistance test of the extensor muscles of the vertebral column. Associations were established through Student's T-test or Mann-Whitney's U-test and correlations using Pearson's test.

Results

Out of 48 participants, 32 (67%) suffered from low pain. For the resistance test, the subjects suffering from low back pain endured less time in comparison with asymptomatic subjects, but without significant differences (p=0.147). The duration of the pain episode showed a significant negative correlation (p=0.016) with the results of the resistance test though. The main factors identified as causes of low back pain were biomechanical and postural elements, conditions of the muscle structure and physical and organizational conditions.

Conclusions

the main occupational factors associated with the low back pain were the posture and the characteristics of the physical and organizational conditions. In addition, the extensor muscles of the column showed a trend towards lesser resistance for workers in pain. This evidence is important when considering prevention and treatment strategies.

Postural biomechanical risks for nursing workersRiscos biomecânicos posturais em trabalhadores de enfermagem

Introduction In the hospital environment, several types of professionals must be involved in continuous working shifts, under working conditions that are often unsatisfactory. Objective The objective of the present study was to analyze the biomechanical risk factors for work-related musculoskeletal disorders (WRMD). Material and methods This was a cross-sectional, exploratory, descriptive and quantitative study and its analysis considered 15 workers, in three shifts. A questionnaire containing personal information and general data regarding the work environment was applied. The REBA protocol was used for posture assessment, once the workers were recorded while performing their activities. The results were presented descriptively. Results In light of the results obtained, the working day was found excessive, particularly considering the weekly frequency and period of time of the working shifts. The REBA protocol showed that the positions adopted presented high risk for the development of WRMD in all nine activities evaluated. Conclusion The nursing activities were characterized as stressful for the workers involved.

Effective retention strategies for midcareer critical care nurses: a Q-method study

BACKGROUND

Midcareer nurses continue to be overlooked in the current nursing shortage that is amplified in intensive care units (ICUs) requiring greater numbers of specialized nurses.

OBJECTIVES

The aim of this study was to discover what midcareer critical care nurses perceive would be effective retention strategies.

METHODS

As a combination of both qualitative and quantitative approaches, Q methodology was used to allow for the development of innovative strategies as well as to provide an understanding of a population of viewpoints and preferences that can guide retention efforts. Forty ICU nurses between the ages of 25 and 44 years from within a Canadian academic health science corporation completed a 45-item Q sort representing their ideas for increasing staff retention. Data were analyzed using centroid factor extraction and varimax rotation in PQMethod version 2.11.

RESULTS

Four viewpoints emerged: The Healthy Workplace and Respect Seeker, The Flexibility and Reward Seeker, The Professional Development and Teamwork Seeker, and The Lifestyle Seeker. Correlations between the factors were appropriately weak, with seemingly distinct demographics characterizing each.

DISCUSSION

These findings suggest a possible association between perceptions and both years of nursing experience as well as age. Implications from the study include the need to involve frontline nurses in developing strategies that will retain them. Following further investigation of the nurses' preferred strategies, it may be necessary for organizations to develop an array of retention strategies rather than implementing a single solution. In future research, generational preferences and the possible dissonance between nurse managers and frontline nurses' perceptions should be explored.