Journal
JOURNAL OF AGRICULTURAL SAFETY AND HEALTH
Volume 27, Issue 4, Pages 215-227Publisher
AMER SOC AGRICULTURAL & BIOLOGICAL ENGINEERS
DOI: 10.13031/jash.14554
Keywords
Agriculture; Epidemiologic methods; Farm; Injury; Nonresponse bias; Occupational health; Ranch; Safety; Surveillance; Survey
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This study found that nonresponse bias in estimating agricultural injuries was minimal, with few differences identified between responders and nonresponders. Early responders were more likely to report injuries and seek medical care, indicating a potential differential reporting behavior that warrants further investigation.
Nonresponse bias in a survey can result in misleading estimates of agricultural injuries and can misdirect prevention efforts aimed at reducing the burden of injuries on farmers. Responders (n = 2,977) and nonresponders (n = 13,849) were compared based on demographics and agricultural production characteristics to identify underrepresented subgroups. Injury characteristics were compared between early (n = 1,667) and late (n = 1,309) responders. Methods accounted for correlated data, sample size inflation of p-values, and assessment of meaningful differences. Few differences were identified between responders and nonresponders. Responders differed from nonresponders by state of residence, and responders were more likely to be married. Other characteristics (age, gender, education, farm size, crops grown, animals raised) were similar across groups. Early responders reported more injuries and more often sought medical care for an injury than late responders. The differences identified between responders and nonresponders were minimal and not likely to create bias. Differential reporting of injury and injury severity between early and late responders is worthy of further investigation.
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