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Cost Analysis of a PTO Driveline Shielding Program: Are Effective Programs Cost-Effective?
Pamela J Tinc1, Julie A Sorensen1, Paul L Jenkins1
1Northeast Center for Occupational Health and Safety: Agriculture, Forestry, and Fishing, Bassett Healthcare Network Research Institute, Cooperstown, New York, USA.
Journal of Agricultural Safety and Health
|November 3, 2021
Summary
Implementing power take-off (PTO) driveline shielding on farms is a crucial occupational safety intervention. This study assesses the cost-effectiveness of PTO shielding, finding it can be financially viable when integrated with other farm services.
Area of Science:
- Agricultural Safety and Health
- Occupational Safety Interventions
- Cost-Benefit Analysis
Background:
- Power take-off (PTO) entanglements are a significant cause of severe injuries and fatalities on U.S. farms, impacting both adults and children.
- User-friendly PTO shielding, promoted by safety specialists, is a key strategy for preventing these hazardous incidents.
- Understanding the economic implications of PTO shielding interventions is essential for widespread adoption and effective risk management.
Purpose of the Study:
- To evaluate the cost-effectiveness of implementing PTO driveline shielding as an occupational safety intervention on farms.
- To determine the cost per entanglement prevented under various scenarios, considering shield lifespan and implementation costs.
- To explore strategies for improving the financial viability of PTO shielding programs.
Main Methods:
- Calculated cost-effectiveness based on program expenses, PTO shield costs, shield lifespan, and the number needed to prevent an entanglement (NNT).
- Adjusted all cost estimates to 2019 dollars for inflation.
- Analyzed multiple cost-estimate scenarios to establish a range of costs per entanglement prevented.
Main Results:
- The cost per entanglement prevented varied widely, ranging from $921,544 (10-year shield lifespan, NNT of 12,487) to $18,583,492 (3-year shield lifespan, NNT of 67,119).
- At the median PTO shield lifespan of five years and a median NNT of 39,802, the cost per entanglement prevented was $6,612,244.
- Cost-efficacy significantly improves when the cost of PTO shield introduction is combined with other on-farm services.
Conclusions:
- The cost-effectiveness of PTO shielding interventions is highly dependent on the lifespan of the shields and the number required to prevent an entanglement.
- Integrating PTO shield provision with other farm services can substantially enhance the financial viability of these safety measures.
- Effective occupational safety interventions require consideration of factors beyond direct injury reduction, including economic sustainability.
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