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Frequency and severity of injuries to operators during overturns of farm tractors.

Authors
Cole-HP; Myers-ML; Westneat-SC
Source
J Agric Saf Health 2006 May; 12(2):127-138
NIOSHTIC No.
20030231
Abstract
Previous estimates of operator death from farm tractor overturn events range from 0.03 to 0.68. This study provided population-based estimates of the denominator of total farm tractor overturns and the frequency of six classes of overturn injury outcomes for tractors with and without rollover protective structures (ROPS). A 40-item telephone survey collected information from a random sample of 6,063 (8.0%) Kentucky farms about each farm's most recent overturn. A total of 551 (9.1%) farms reported overturns, and 5,512 (90.1%) reported no overturns. Injury outcomes for 443 overturns of non-ROPS tractors and 89 ROPS tractors were distributed as follows: no or minor injury (non-ROPS: 70.43%; ROPS: 82.02%), outpatient treatment (non-ROPS: 21.90%; ROPS: 9.00%), hospital admission (non-ROPS: 15.35%; ROPS: 3.37%), temporary disability (non-ROPS: 13.54%; ROPS: 14.61%), permanent disability (non-ROPS: 3.16%; ROPS: 0.00%), and death (non-ROPS: 5.42%; ROPS: 1.12%). (Percents total to more than 100 because some operators treated as outpatients were subsequently hospitalized, disabled, or died.) The observed 0.054 probability of death from overturn of non-ROPS tractors in this sample was corrected for the proportion of farms that went out of business prior to the survey and thus were excluded from the sampling frame. The adjusted 0.08 probability of death from overturn of a non-ROPS tractor is five times smaller than the NIOSH estimate of 0.40. The discrepancy lies in the much larger denominator of all non-fatal and fatal overturns than assumed previously.
Keywords
Injuries; Farmers; Tractors; Agriculture; Agricultural-workers; Agricultural-machinery; Agricultural-industry; Occupational-hazards; Traumatic-injuries; Mortality-rates; Mortality-data; Sampling; Occupational-health; Author Keywords: Injury outcomes; Injury severity; Overturns; Rollover protective structures; Rollovers; ROPS; Tractors
CODEN
JASHFD
Publication Date
20060501
Document Type
Journal Article
Email Address
hcole@uky.edu
Funding Type
Agriculture; Cooperative Agreement
Fiscal Year
2006
NTIS Accession No.
NTIS Price
Identifying No.
Cooperative-Agreement-Number-U50-OH-007547; Grant-Number-R25-OH-008542
Issue of Publication
2
ISSN
1074-7583
Source Name
Journal of Agricultural Safety and Health
State
KY
Performing Organization
University of Kentucky
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