Age, medication use, and nonfatal agricultural injury

Abstract

This descriptive and analytic study used a secondary data set to describe and compare medication use and agricultural injury experiences between younger (≤54 years old) and older (≥55 years old) farmers; and to examine the relationship between the use of specific classes of medication and reported agricultural injury. The study sample included a total of 316 farmers, age 26 to 80 years old; 103 older farmers (33%), and 210 younger farmers (66%). This cohort of farmers sustained a total of 318 nonfatal agricultural injuries. No statistical difference was found in the mean number of injuries sustained by older and younger farmers. The injury rate for the whole cohort of farmers was 41.95 injuries/100 years; older farmers’ injury rate was 38.35 injuries/100 person-years, while younger farmers’ was 44.01 injuries/100 person-years. Older farmers were more likely to report taking a medication than the younger farmers (OR: 3.08; 95% CI: 1.94-4.92). Older farmers had statistically significant greater odds of reporting the use of several medication classes/subclasses than the younger farmers, including: hormones; cardiac medications such as: ACE inhibitors, blood pressure medications, alpha blockers, and beta blockers, and finally central nervous system medications such as pain medications. Older farmers were also found to report taking more medications than younger farmers. Multiple logistic regression analysis using GEE was used to examine the association between using specific classes of medication and agricultural injury, taking into consideration a myriad of confounding factors. Agricultural work exposures associated with injury included noise (OR 1.39, 95% CI: 1.02-1.90), chemical/pesticide use (OR 1.88, 95% CI: 1.39-2.55), heavy lifting (1.55, 95% CI: 1.06-2.28) and raising livestock (OR 1.49, 95% CI: 1.08-2.06). Medication classes significantly associated with an increased risk for agricultural injury included taking two different types of heart medications: beta blockers (OR 2.30,