Análise do tempo de latência de doenças da coluna relacionadas ao trabalho : um recorte a partir de processos trabalhistas

Abstract

Background: Most Work-Related Musculoskeletal Disorders (WRMDs) emerge gradually over time. The period required for such conditions to manifest can be affected by the intensity and frequency of exposure to occupational risks. Objective: To build a regression model to analyze the latency time of work-related spinal disorders in litigation in labor courts. Methods: This is a documentary study obtained from lawsuits filed with the 13th Regional Labor Court. The sample included data obtained from lawsuits with expert reports prepared by a physician and/or physiotherapist, whose results indicate the presence of a causal or co-causal link. Only lawsuits from the last five years were considered, excluding those with a percentage of missing data (greater than 10%), as well as lawsuits that contained more than one expert report with divergent results in terms of causality. The data obtained were initially analyzed descriptively, considering measures of central tendency. Latency time modeling was performed using Survival Analysis, with the event of interest being the time between the start of the activity and the onset of symptoms of work-related spinal diseases. The analyses were performed using the R Core Team software, considering a significance level of 5%. Results: he results indicate that male workers have a significant reduction in the time until the onset of symptoms. In addition, increasing age is associated with an increase in the time until the onset of symptoms related to spinal diseases. Performing manual activities was observed as a factor that reduces the survival time of workers. On the other hand, it was found that, for each additional month of activity performed in the company, there is an increase in the time until the onset of the first symptoms in the spinal column. Conclusion: The final adjusted models pointed out relevant factors that influence the onset of symptoms of spinal diseases, enabling a comprehensive discussion that includes several aspects intrinsic to the work environment and the worker, by identifying those different variables influenced the time until the onset of symptoms of spinal diseases.