Road Segment Characteristics and the Incidence of Farm Vehicle-Related Crashes: A Multi-State GIS-Based Matched Case-Control Study

Details

• Personal Author:
  Mello E ; Ramirez M ; Ranapurwala SI
• Description:
  Agricultural workers have the highest occupational mortality rate in the United States, and more than a third of the fatalities are attributed to transportation. Farm vehicle-related crashes (FVC) are hazardous for both farm and non-farm vehicle operators. In a matched case-control study, we measured gradient and sinuosity of road segments using ArcGIS, and evaluated their association with the incidence of FVCs from nine Midwestern states of the US during 2005-2010. A road segment with a FVC was defined as case (n=6,848), and a road segment without FVC was defined as control. The FVC data were collected from nine state departments of transportation, and road segment data from the Environmental Sciences Research Institute. Controls were matched by ZIP code, road type, and road segment length following 1:1 (controls=6,808) and 1:2 (controls=13,566) matching schemes. Using multivariable conditional logistic regression, odds ratios (OR) and 95% confidence intervals (CI) were computed. For sensitivity analyses, risk ratios for FVC incidence were calculated from the full cohort of road segments (n=6,491,811) using log linear regression. Compared to a leveled (<1% gradient) and straight (<1% sinuosity) road segment, increased gradient and sinuosity were associated with fewer FVCs. A road segment with >10% gradient was associated with 40% decreased FVC incidence (OR=0.60, 95% CI: 0.49, 0.75), and a road segment with >30% sinuosity was associated with 79% decreased FVC incidence (OR=0.21, 95% CI: 0.13, 0.36). Results were robust across all analyses. These associations may be due to cautious driving behaviors when maneuvering curvy or steep roads. [Description provided by NIOSH]
• Subjects:
  Agriculture Automobiles Behavior Farmers Occupational Health Safety
• Keywords:
  Agricultural Machinery Agricultural Safety Behavior Patterns Equipment Operation Motor Vehicles Safety Practices Vehicle Safety
• Publisher:
  Society for Epidemiologic Research
• Document Type:
  Text
• Funding:
  Cooperative Agreement
• Genre:
  Abstract or Summary
• Place as Subject:
  Colorado ; Iowa ; OSHA Region 7 ; OSHA Region 8 ; Utah
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  31
• NIOSHTIC Number:
  nn:20052883
• Citation:
  48th Annual Society for Epidemiologic Research (SER) Meeting, June 16-19, 2015, Denver, Colorado. Clearfield, UT: Society for Epidemiologic Research, 2015 Jun; :31
• Contact Point Address:
  Shabbar I. Ranapurwala, Injury Prevention Research Center, The University of Iowa, Iowa City, IA
• Federal Fiscal Year:
  2015
• NORA Priority Area:
  Agriculture, Forestry and Fishing
• Performing Organization:
  University of Iowa, Iowa City
• Peer Reviewed:
  False
• Start Date:
  20010930
• Source Full Name:
  48th Annual Society for Epidemiologic Research (SER) Meeting, June 16-19, 2015, Denver, Colorado
• End Date:
  20270929
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:f5ae848efb1db08f9b02c1a61a8db0124a52d5e0639e5402f961dd2eb220f165cf1b6cc96012064c08fce18bcd591ca524bf6436dc6374b453ded344e84bcdd5
• Download URL:
  https://stacks.cdc.gov/view/cdc/215790/cdc_215790_DS1.pdf
• File Type:
  [PDF - 183.21 KB ]