Prevalence of musculoskeletal pains and effect of work-related factors among employees on offshore oil and gas installations in Iran

Predictors of musculoskeletal disorders and job satisfaction among office workers of an oil company: A cross-sectional study in Iran

BACKGROUND

Musculoskeletal disorders are among the significant causes of disabilities and occupational injuries all over the world and can reduce the quality of life and job satisfaction. These disorders prevail among the office workers of the Iranian Oil Company, though research on the involved factors is limited.

OBJECTIVE

The present study investigated the incidence and risk factors of musculoskeletal disorders and their association with job satisfaction among the office workers of the Iranian Oil Company.

METHODS

The present research was a cross-sectional descriptive-analytical study on 210 male office workers of the Iranian Oil Company. The prevalence of musculoskeletal disorders and the rate of job satisfaction were measured by Nordic Musculoskeletal and Minnesota job Satisfaction Questionnaires, respectively. The relationship between the variables was analyzed by the SPSS 28 software.

RESULTS

The most prevalent musculoskeletal disorders among office workers in the past 12 months were associated with the neck, waist, and knee organs, with 45.70, 41, and 38.10 percentages. Smoking, second jobs, and physical injury histories were identified as three risk factors connected to musculoskeletal disorders (p < 0.05). Forty-one percent of the participants were moderately satisfied with their jobs, and this number was significantly related to musculoskeletal disorders in the shoulders, elbows, back, waist, and knees (p < 0.05).

CONCLUSION

The results of this study indicate that second jobs, smoking, and physical injury histories are three risk factors for musculoskeletal disorders among office workers of the Iranian Oil Company. Thus, it is imperative to identify at-risk office workers and train and encourage them to take preventive actions and employ ergonomic job equipment.

The effect of subacute co-exposure to carbon tetrachloride and diclofenac on the liver of male wistar rats

Carbon tetrachloride (CCl₄) is a potent liver toxin. Diclofenac (Dic), leading adverse effects on the liver, is used among the employees of the industries that use CCl₄. The increased use of CCl₄ and Dic in industrial workers has prompted us to investigate their synergistic effect on the liver using male Wistar rats as a model. Male Wistar rats were divided into seven groups (n = 6), and the exposure was by intraperitoneal injection for 14 days as follows. Group 1: Control, 2: Olive oil, 3: CCl₄ (0.8 mL/kg/day (3 times per week)), 4: Normal saline, 5: Dic (1.5 mg/kg/day per day), 6: Olive oil with normal saline, 7: CCl₄ (0.8 mL/kg/day (3 times per week)) and Dic (1.5 mg/kg/day daily). At the end of day 14, the heart blood was collected to measure the liver enzymes, alanine-aminotransferase (ALT), aspartate-aminotransferase (AST), blood alkaline phosphatase (ALP), albumin (ALB), direct bilirubin, and total bilirubin. A pathologist examined the liver tissue. Prism software was used to analyze data using ANOVA and Tukey statistical tests. ALT, AST, ALP, and Total Bilirubin enzymes were increased significantly in the co-administered CCl₄ and Dic group, while the ALB levels decreased (p < 0.05). The histological findings reported liver necrosis, focal hemorrhage, adipose tissue change, and lymphocytic portal hepatitis. In conclusion, using Dic while exposed to CCl₄ may exacerbate hepatotoxicity in rats. Therefore, it is suggested that more severe restrictions and safety regulations be placed on using CCl₄ in the industry, and caution is advised to these industry workers to use Diclofenac.

Association of Low Back Pain with Shift Work: A Meta-Analysis

Shift work (SW) is the main working schedule worldwide, and it may cause sleep disorders, breast cancer, and cardiovascular disease. Low back pain (LBP) is a common problem in the workplace; however, the association between LBP and SW remains unclear. Therefore, we conducted a meta-analysis to determine the association between SW and LBP. This study was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. The PubMed, Embase, and Web of Science databases using a set of associated keywords were queried. The inclusion criteria were as follows: (1) adult employees hired by a company or organization; (2) SW exposure; and (3) the outcome of LBP according to examination or assessment. A total of 40 studies were included that met the inclusion criteria for the meta-analysis. SW was significantly associated with LBP (odds ratio [OR]: 1.31, 95% confidence interval [CI]: 1.18−1.47, p < 0.00001). Furthermore, it was observed that LBP was significantly associated with night shift (NS) (OR: 1.49, 95% CI: 1.24−1.82, p < 0.0001) but not with rotating shift (RS) (OR: 0.96, 95% CI: 0.76−1.22, p = 0.49). Moreover, LBP was significantly associated with SW in health care workers (HCWs) (OR: 1.40, 95% CI: 1.20−1.63, p < 0.0001) but not in non-HCWs (OR: 1.19, 95% CI: 0.94−1.50, p = 0.14). SW was significantly associated with LBP. Furthermore, the subgroup analysis showed that NS, but not RS, was associated with LBP. Compared with SW in non-HCWs, SW in HCWs was significantly associated with LBP.

US research needs related to fatigue, sleep, and working hours among oil and gas extraction workers

BACKGROUND

During 2003-2013, 1189 US oil and gas extraction (OGE) workers died while working, resulting in an average annual workplace fatality rate seven times that for all US workers. OGE work commonly involves long hours, shiftwork, irregular schedules, and long commutes, but effects of these factors on fatigue, occupational injury, and illness in OGE are largely unknown.

METHODS

A scoping review of relevant OGE research during 2000-2019 was completed and supplemented by input from a NIOSH-sponsored Forum.

RESULTS

Seventy-eight papers were identified; 76% reported only offshore research. Five themes for research needs emerged: build knowledge about the impacts of fatigue; explore interactions between on- and off-the-job risk factors; identify and evaluate interventions; assess effectiveness of technology; and increase the diffusion of fatigue risk management information.

CONCLUSIONS

Further collaboration between researchers and OGE operators and contractors can lead to action-oriented recommendations to mitigate the effects of fatigue, inadequate sleep, and shiftwork.

The impact of emotional intelligence and personality traits on the occurrence of unsafe behaviors and needle stick injuries among the nurses

This study was aimed to investigate the effect of emotional intelligence and some personality traits on safe behavior and needle stick injuries among the nurses. This cross-sectional study was performed on 200 nursing staff of a hospital in Iran. To collect data, individuals were asked to complete several questionnaires, including demographic questionnaire, domain-specific risk-taking questionnaire, Rosenberg self-confidence questionnaire, Buss-Perry aggression questionnaire, Goleman emotional intelligence questionnaire, and safe behavior questionnaire. Also, the number of needlestick injuries in the participants was extracted from their medical records. Data were analyzed using the SPSS software (version 22), and path analysis was performed using AMOS software. The prevalence of needle stick injuries in the subjects was estimated by 45.5 percent. The results showed that increasing risk-taking, increasing aggression, decreasing self-confidence, and decreasing emotional intelligence reduced safe behavior and increased the number of needle injuries (P < 0.001). In the present study, some personal traits affecting the occurrence of needlestick injuries were identified. It is recommended that people without these negative traits are applied in dangerous occupations with a high probability of needle stick injuries.

The impact of ergonomic-educational interventions on reduction of musculoskeletal symptoms among employees of oil and gas installations in Iran

BACKGROUND: Musculoskeletal disorders can cause increased absenteeism, costs, and injuries. OBJECTIVE: The present study was aimed to investigate the impact of ergonomic-educational interventions on the reduction of musculoskeletal symptoms among employees of oil and gas installations. METHODS: This interventional study was conducted on 1243 male workers of oil and gas installations in the south of Iran. The Nordic questionnaire and quick exposure check (QEC) method were used to evaluate the risk of developing musculoskeletal disorders in the participants. Then, the educational interventions via training sessions, designed educational booklets and leaflets, and prepared educational film were performed. Data were collected at the times of two months before and six months after the interventions. RESULTS: The prevalence of musculoskeletal symptoms, at least in one of the body areas, was equal to 71.28%. The results showed that the prevalence of these symptoms significantly decreased in all body areas after the educational interventions (P <0.028). The highest reduction rate occurred in the regions of wrists and hands (52.77%), knees (47.17%), and waist (47.13%), respectively. Moreover, the results indicated that the mean value of the total score of quick exposure check (QEC) had a meaningful decrease from 0.92 to 0.54 after the educational interventions (P <0.0001). CONCLUSION: The planned educational interventions efficiently reduced the prevalence of musculoskeletal symptoms and the ergonomic risk levels estimated by QEC in the research population.

Development of modified rapid entire body assessment (MOREBA) method for predicting the risk of musculoskeletal disorders in the workplaces

Background

Rapid Entire Body Assessment (REBA) technique is one of the tools developed for predicting the risk of musculoskeletal disorders based on the effective risk factors. This method has several limitations. The present study was aimed to develop the Modified Rapid Entire Body Assessment (MOREBA) method to more accurately predict the risk of musculoskeletal disorders.

Materials

This cross-sectional study was performed on 300 male workers of a steel factory with a variety of job tasks in Iran. Then, the information related to the various physical risk factors was extracted through observation of their duties and conversation with them. Also, the subjects were asked to complete the Persian version of Cornell musculoskeletal discomfort questionnaires (CMDQ). Then, a theoretical model was drawn in AMOS software. Computed coefficients were used to develop the MOREBA equation. In the end, the final scores were categorized by ROC curves, and the validation of the novel method was investigated using linear regression analysis.

Results

The parameters evaluated in the MOREBA method included contact stress, rapid and sudden movement, throwing motion, hand-arm vibration, whole-body vibration, temperature, and work-rest cycle in addition to the parameters of the REBA method, including awkward posture, coupling, force, load, static activity, and repetitive activity. The results showed that the strain produced by the physical risk factors with the total effect coefficient of 0.783 could significantly affect the musculoskeletal symptoms. The computed coefficients of the risk factors were applied to develop a novel index. The final score of the MOREBA method was categorized into four levels by optimal cut-off points of 12.37, 16.51, and 24.35. Based on the results, the MOREBA and REBA methods could justify 67 and 55% of the variations of musculoskeletal symptoms, respectively.

Conclusions

The results revealed that modifications conducted in the REBA method were effective, and the MOREBA method can provide a more accurate prediction of the risk of musculoskeletal disorders.

Health and well-being of rotation workers in the mining, offshore oil and gas, and construction industry: a systematic review

Introduction

Rotation work, characterised by travelling long distances to work in isolated areas where workers typically rotate consecutive days working and living on-site with periods at home, is increasingly used in the resources and construction sectors globally. Such employment practices may have an impact on workers’ health and well-being. This systematic review explores the impact rotation work has on mental and physical outcomes in rotation workers in the resources and construction sectors.

Method

The PubMed, Medline, EMBASE, CINAHL, PsycINFO, and Scopus databases were systematically searched on 1 May 2020 to identify quantitative, qualitative and mixed-method studies addressing the health of rotation workers published in peer-reviewed journals. Findings from the studies were summarised narratively.

Results

Of 6268 studies retrieved, 90 studies were included in the review. Studies suggested higher prevalence of psychological distress in onshore rotation workers and higher overweight/obesity rates among rotation workers as compared with the general population. We found more sleep problems and higher levels of smoking during work periods compared with off-site days; and higher alcohol intake during off-site days compared with on-site days. Workers generally perceived their physical health status as good. High-perceived job demands (such as workload, repetitive work) were associated with mental distress and exhaustion, sleep problems and perceived poor physical health status, while high-perceived job resources (such as job clarity/control, support) were associated with low mental distress and exhaustion, less smoking and alcohol intake, and better sleep.

Conclusion

Rotation work is associated with several poorer health behaviours and outcomes, such as sleep problems, smoking, alcohol consumption and overweight/obesity. Interventions needed to improve rotation workers’ health should include maximising available job resources and reducing job demands. Further longitudinal studies are needed to explore the long-term health effects of rotation work and the short-term contextual effects of the different aspects of rotation work.

Association between sleep disorders and shift work: a prospective cohort study in the Chinese petroleum industry

Objective. This study aimed to understand the prevalence of sleep disorders among shift workers and analyze the relationship between sleep disorders and shift work. Methods. Baseline data were collected from subjects who were then followed for 2 years in a prospective cohort study. The cohort ultimately included 2453 people starting in May 2013, and follow-up with questionnaires was performed in July 2014 and October 2015. Sleep disorders were assessed with the Pittsburgh sleep quality index. Results. The risk of sleep disorders among two-shift workers (relative risk [RR] = 1.318, 95% confidence interval [CI] [1.025, 1.695]), three-shift workers (RR = 1.326, 95% CI [1.048, 1.679]) and four-shift workers (RR = 1.334, 95% CI [1.062, 1.675]) was higher than that among non-shift workers, and an increasing trend was observed in sleep disorders as the number of shifts increased. Conclusions. Shift workers have a higher incidence of sleep disorders than non-shift workers. An increasing linear trend was observed between the number of shifts and sleep disorders. In the petroleum industry, it is necessary to decrease the frequency of shifts to reduce the incidence of sleep disorders among shift workers.

Musculoskeletal Disorders and Associated Factors among Vehicle Repair Workers in Hawassa City, Southern Ethiopia

Background

Vehicle repair work is one of the highest risk professions for work-related musculoskeletal disorders. Globally, only a few published studies have examined the prevalence and determinants of work-related musculoskeletal disorders among vehicle repair workers. Related studies in Ethiopia are even fewer. This study aimed to determine the prevalence of self-reported work-related musculoskeletal disorders and associated factors among vehicle repair workers in Hawassa city, South Ethiopia, 2019.

Methods

An institution-based cross-sectional study was conducted among 344 vehicle repair workers in the Hawassa city. The Nordic Musculoskeletal Questionnaire-Extended (NMQ-E) was used to assess work-related musculoskeletal disorders on nine body regions. Descriptive statistics and multivariable analyses were used to characterize the data and identify factors associated with work-related musculoskeletal disorders.

Result

The twelve-month prevalence of work-related musculoskeletal disorders among this working group was 47.7% with 95% CI (42.7-53.2). Jobs continuously requiring repetitive motions (AOR: 4.29, 95% CI (1.78-10.2)), not having professional training (AOR: 2.04, 95% CI (1.09-3.81)), force exertion when using tools (AOR: 2.40, 95% CI (1.24-4.62)), job stress (AOR:4.54, 95% CI (2.44-8.46)), and regularly lifting, pushing, and pulling loads greater than 20 kg (AOR:4.85, 95% CI (2.65-8.87)) were identified as associated factors.

Conclusion

This study showed a 47.7% prevalence of work-related musculoskeletal disorders. Force exertion, repetitive tasks, manual handling of heavy loads, stress, and lack of training were the identified factors. Ergonomic awareness among workers should be increased through training. In addition, owners should investigate methods to reduce or eliminate risk factors leading to musculoskeletal disorders found among these workers. Automation of high-risk tasks should also be investigated.

Musculoskeletal pain among offshore wind industry workers: a cross-sectional study

Objective

To assess whether there are differences in musculoskeletal pain among different types of occupations offshore and their relationship to ergonomic demands.

Methods

We conducted a web-based cross-sectional survey among workers from offshore wind energy companies operating within the German exclusive economic zone. We selected workers with regular offshore commitments and at least 28 days spent offshore in the past year (n = 268). Musculoskeletal pain was assessed using the Subjective Health Complaints inventory (SHC), which considers the past month.

Results

Of the 268 male participants eligible for analysis, 54% reported back pain 50.4% neck pain, 40.3% lower back pain, 35.5% shoulder, 23.3% arm and 22.1% leg pain, all of them during the past month. Compared to other offshore occupations, technicians reported more frequently arm (OR 3.13; 95% CI 1.58–6.19), back (OR 1.97; 95% CI 1.15–3.39), shoulder (OR 1.94; 95% CI 1.11–3.40) and neck pain (OR 1.89; 95% CI 1.11–3.22). After adjusting for age and nationality, lifting and carrying heavy loads were associated with all types of pain except leg pain. Overhead work, work in awkward postures, and the use of personal protection equipment and heavy tools was associated with shoulder, back and arm pain.

Conclusions

Our findings suggest that occupational health counselling, health promotion and preventive interventions of offshore wind energy workers needs to consider the specific tasks of the employee and be particularly tailored to the ergonomic needs of technicians.