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The role of occupational activities and work environment in occupational injury and interplay of personal factors in various age groups among Indian and French coalminers

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Bhattacherjee A., Kunar B. M., Baumann M., Chau N.

International Journal of Occupational Medicine and Environmental Health

2013

vol. 26

issue 6

910-929

Objective: The role of occupational hazards in occupational injury may be mediated by individual factors across various age groups. This study assessed the role of occupational hazards as well as contribution of individual factors to injuries among Indian and French coalminers. Material and Methods: We conducted a case-control study on 245 injured workers and on 330 controls without any injuries from Indian coal mines using face-to-face interviews, and a retrospective study on 516 French coalminers using a self-administered questionnaire including potential occupational and personal factors. Data were analyzed using logistic models. Results: The annual rate of injuries was 5.5% for Indian coalminers and 14.9% for the French ones. Logistic model including all occupational factors showed that major injury causes were: hand-tools, material handling, machines, and environment/work-geological/strata conditions among Indian miners (adjusted oddsratios 2.01 to 3.30) and biomechanical exposure score among French miners (adjusted odds-ratio 3.01 for score the 1-4, 3.47 for the score 5-7, and 7.26 for score ≥ 8, vs. score 0). Personal factors among Indian and French coalminers reduced/exacerbated the roles of various occupational hazards to a different extent depending on workers' age. Conclusion: We conclude that injury roles of occupational hazards were reduced or exacerbated by personal factors depending on workers' age in both populations. This knowledge is useful when designing prevention which should definitely consider workers' age.

The association between rurality and return to work for workers’ compensation claimants with work-related musculoskeletal injuries: An analysis of workers who failed to return to work within typical healing time frames

100%

Lavoie C. A., Voaklander D., Beach J. R., Gross D. P.

International Journal of Occupational Medicine and Environmental Health

2017

vol. 30

issue 5

715-729

Objectives The objectives of this study have been to: 1) describe and compare urban and rural injured worker populations in Alberta, Canada; 2) identify return-to-work outcomes in urban and rural populations; 3) examine the relationship between geographic location of residence and recovery from work-related musculoskeletal injury; and 4) investigate if this relationship is attenuated after controlling for other known risk factors. Material and Methods This study was a secondary analysis utilizing data of a population of musculoskeletal injury claimants who underwent clinical/RTW (return to work) assessment between December 2009 and January 2011 collected by the Workers’ Compensation Board of Alberta. Descriptive statistics were computed for 32 variables and used for comparing urban and rural workers. The logistic regression analysis was performed to test the association between geographic location of residence and likelihood of return-to-work. Results Data on 7843 claimants was included, 70.1% of them being urban and 29.9% – rural. Rural claimants tended to have spent less time in formal education, have a blue-collar job, have no modified work available, have a diagnosed comorbidity, and not been enrolled in a specialized rehabilitation program. They were 1.43 (1.12–1.84) times the odds more likely than urban claimants to be continuing to receive full disability benefits 90 days after their RTW assessment, and 1.68 (1.06–2.67) times the odds as likely to report a recurrence of receiving disability benefits. Conclusions Rural residence was associated with prolonged work disability, even after controlling for age, job type, education level, health utilization and other potential confounders. Further research is required to explore why injured workers in rural settings experience prolonged reception of disability benefits and have greater rates of recurrence of receiving disability benefits. Int J Occup Med Environ Health 2017;30(5):715–729

Occupational shoulder disability: functional recovery after decompression and neurolysis of the upper brachial plexus and the long thoracic nerve

100%

Nath R. K., Leal A. M., Somasundaram C.

International Journal of Occupational Medicine and Environmental Health

2021

vol. 34

issue 3

427-435

ObjectivesThis study aimed to assess the surgical outcomes of patients with work-related upper extremity musculoskeletal disorders (UE-MSDs) who failed conservative treatment.Material and MethodsThis was a retrospective study of 17 patients who had work-related UE-MSDs and underwent the following surgeries and follow-up evaluations: decompression, external and internal neurolysis of the upper trunk of the brachial plexus and the long thoracic nerve (LTN), and a partial resection of the anterior and middle scalene muscle. A detailed history of clinical presentation including pain, physical and clinical examinations of the extent of scapular winging (ESW), and upper extremity anatomical postures, such as active forward arm flexion and shoulder abduction, were recorded before and after 3 months of the surgery. Nerve conduction velocity and electromyography examination reports were obtained to assess the sensory or motor loss of the nerve injury before their operation.ResultsAll 17 patients included in this report showed some improvement anatomically in the scapula appearance and functionally in their shoulder movements. More specifically, 9 (53%) patients got a restored to near healthy appearance of the scapula, and 11 (65%) patients recovered a full range of motion, 180° post-surgically. Overall, the mean shoulder flexion and abduction improved to 157±37.5° and 155±40.2° after the surgery from 106±30.2° and 111±34.8°, respectively (p < 0.0001). The ESW score also significantly improved from a mean of 1.5±0.51 to 3.5±0.71 (p < 0.0001). The post-surgical improvements were statistically highly significant (p < 0.0001).ConclusionsDecompression and neurolysis of the upper brachial plexus and the LTN, and the partial release of the scalene muscle contracture procedures have fostered improvements in the shoulder anatomical appearance and movements in all 17 patients.

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3 International Journal of Occupational Medicine and Environmental Health

1 Baumann M.

1 Beach J. R.

1 Bhattacherjee A.

1 Chau N.

1 Gross D. P.

1 Kunar B. M.

1 Lavoie C. A.

1 Leal A. M.

1 Nath R. K.

1 Somasundaram C.

1 Voaklander D.

1 2021

1 2017

1 2013

Search results

The role of occupational activities and work environment in occupational injury and interplay of personal factors in various age groups among Indian and French coalminers

The association between rurality and return to work for workers’ compensation claimants with work-related musculoskeletal injuries: An analysis of workers who failed to return to work within typical healing time frames

Occupational shoulder disability: functional recovery after decompression and neurolysis of the upper brachial plexus and the long thoracic nerve