Published in the Journal of Agromedicine.
From the Abstract:
In this study the authors estimated the prevalence of elevated daytime sleepiness, depressive symptoms, and musculoskeletal pain among Latino migrant farmworkers, and examined the relationship among these symptoms. Data are from a cross-sectional survey of migrant farmworkers (N = 300) conducted in eastern North Carolina in 2009. Eleven percent of Latino farmworkers reported elevated levels of daytime sleepiness, 28% reported elevated levels of depressive symptoms, and 5% reported moderate to severe musculoskeletal pain on a daily or weekly basis. Depressive symptoms and daytime sleepiness were positively associated. Depression and daytime sleepiness may increase risk of injury; further research regarding sleep issues is warranted.
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By Joanne C. Sandberg PhD, Joseph G. Grzywacz PhD, Jennifer W. Talton MS, Sara A. Quandt PhD, Haiying Chen PhD, Arjun B. Chatterjee MD & Thomas A. Arcury PhD (2012): A Cross-Sectional Exploration of Excessive Daytime Sleepiness, Depression, and Musculoskeletal Pain among Migrant Farmworkers, Journal of Agromedicine, 17:1, 70-80.