In this study, the work processes with high prevalences
and odds ratios for pain at specific body sites were identified.
An attempt was made to understand the ergonomic risk
exposures faced by workers at these work processes from
qualitative observations at the workplace. Further studies
incorporating more detailed observations and measurements
need to be carried out so as to be able to make more definitive
conclusions.
Overall, EOL workers had high prevalences for pain in
all parts of the body. Loading and unloading units into and
out of machines seemed to be a major ergonomic risk
exposure. Wafer fabrication and MOL molding workers
who carried out frequent lifting were also at particularly
high risk. In comparison to the other work sections, FOL
workers had lower risk, probably because their work involved
walking around to operate several machines.
There were two major limitations in the current study.
First, the selection of workers was carried out by management
personnel, and might not have been strictly random. There
could have been a selection bias for healthier workers as
well as workers who were more easily released from the
production process. If this was so, the findings would be
biased toward an underestimation of health problems, and
the high prevalences of body pain found would be even
greater cause for concern. The second limitation was that
objective measurements were not made on postures,
movements and work stations. Further studies should
incorporate these measurements particularly in the work
processes that have been identified to have a high prevalence
In this study, the work processes with high prevalencesand odds ratios for pain at specific body sites were identified.An attempt was made to understand the ergonomic riskexposures faced by workers at these work processes fromqualitative observations at the workplace. Further studiesincorporating more detailed observations and measurementsneed to be carried out so as to be able to make more definitiveconclusions.Overall, EOL workers had high prevalences for pain inall parts of the body. Loading and unloading units into andout of machines seemed to be a major ergonomic riskexposure. Wafer fabrication and MOL molding workerswho carried out frequent lifting were also at particularlyhigh risk. In comparison to the other work sections, FOLworkers had lower risk, probably because their work involvedwalking around to operate several machines.There were two major limitations in the current study.First, the selection of workers was carried out by managementpersonnel, and might not have been strictly random. Therecould have been a selection bias for healthier workers aswell as workers who were more easily released from theproduction process. If this was so, the findings would bebiased toward an underestimation of health problems, andthe high prevalences of body pain found would be evengreater cause for concern. The second limitation was thatobjective measurements were not made on postures,movements and work stations. Further studies shouldincorporate these measurements particularly in the workprocesses that have been identified to have a high prevalence
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