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.
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.