Recorded presentation

Deborah Merchant Langner, MS¹, Kathleen R. Ferguson, MS², Susan G. Gerberich, PhD³, Bruce H. Alexander, PhD³, James G Gurney, PhD⁴, Andrew D. Ryan, MS⁵, Colleen M. Renier, BS⁶, and Steven J. Mongin, MS⁷. (1) Occupational Injury Prevention Research Training Program, University of Minnesota, 717 Delaware Street SE, PO Box 9441, Minneapolis, MN 55440-9441, 612-676-5118, debby.langner@health.state.mn.us, (2) School of Public Health, Division of Environmental and Occupational Health, Regional Injury Prevention Research Center, University of Minnesota, Mayo Mail Code 807, 420 Delaware Street S.E., Minneapolis, MN 55455, (3) Division of Environmental and Occupational Health, School of Public Health, University of Minnesota, Mayo Mail Code 807, 420 Delaware St. SE, Minneapolis, MN 55455, (4) Pediatrics, University of Minnesota, Mayo Mail Code 715, 420 Delaware Street SE, Minneapolis, MN 55455, (5) Health Studies Section, University of Minnesota, Gateway Building Suite 350, 200 Oak St., Minneapolis, MN 55455, (6) Division of Education & Research, St. Mary's/Duluth Clinic Health System, 5AV2ME, 400 E 3rd St, Duluth, MN 55805, (7) Department of Environmental Health, School of Public Health, University of Minnesota, 420 Delaware St SE, MMC 807, Minneapolis, MN 55455

The purpose of this study was to determine whether there is an association between parent and child agricultural injuries among agricultural households in the Upper Midwest. RRIS-II, a population-based study, followed a cohort of 16,538 individuals from 3,765 agricultural operations with children during 1999. Computer-assisted telephone interviews were used to collect data for members of the household pertinent to demographics, injuries, and exposures. A nested case-control study re-examined exposure data for 203 children with agricultural injuries (cases) and 755 randomly selected controls. Analyses were conducted using individual and combined parental injury experiences as independent variables. Two parental injury time periods were evaluated separately and in combination: 1) prior to January 1999; 2) during 1999 prior to the cases’ month of injury or randomly selected months for controls. Odds ratios (ORs) and confidence intervals (CIs) were generated with logistic regression; directed acyclic graphs were used to select confounders. While controlling for potential confounders (state; enterprise; parent’s age, education, and number of hours worked on the operation; and number of children in the household), fathers’ injuries prior to 1999 were associated with children’s risk of injury (OR = 2.1; 95% CI= 1.5, 3.0), as were mothers’ injuries prior to 1999 (OR = 2.5; CI = 1.7, 3.7). Mothers’ injuries during 1999 were suggestive of children’s risk (OR = 1.9; CI = 0.9, 4.0). Children whose parents both reported agricultural injuries prior to 1999 had more than four times the risk (OR = 4.2; CI = 2.6, 6.7) than those with neither parent injured.

Learning Objectives:

• Describe the burden of agricultural injury within two generations in agricultural households in the Upper Midwest
• Assess the association between mother, father, and combined parent injury events and risk of injury to a child within that household
• Evaluate the role of recent parental injury versus past parental injury in the risk of injury to a child within that household

Presenting author's disclosure statement:
I do not have any significant financial interest/arrangement or affiliation with any organization/institution whose products or services are being discussed in this session.

Recorded presentation