Excessive sleepiness scale, Is it recommended in pre employment and periodic medical examination?

Introduction
Excessive sleepiness (ES) is a common complaint that has a wide range of causes, including primary sleep disorders, medical and psychiatric conditions, drugs, alcohol, and medications. ES causes significant impairments in occupational and academic functioning, adversely affecting quality of life with compromised work productivity and risk for accidents and injuries. Objectives: to find out the incidence rate of (ES) among the workers in the selected factory during their pre employment medical examination, to determine the incidence rate of (ES) among the already employed workers and to find out the prevalence rate of accidents and injuries among the affected workers and also their work performance. 

Methods
Self-administered questionnaires (Epworth Sleepiness Scale) has used as a screening tools for ES. Data of accidents and injuries were collected from records and analyzed to find the association between the positive cases of (ES) and the prevalence of injuries and also the degree of work performance 

Results
Cases were categorized into different dozing based on the results of the self-administrated questionnaire. These dozing were; no chance of dozing, slight, moderate and high chance of dozing. The degree of association between the different categories of dozing and the recorded accidents, injuries and work performance were statistically analyzed. 

Discussion
Excessive sleepiness might be a useful routine tool in pre employment medical examination especially for shift workers.