Heat Strain, Volume Depletion and Kidney Function in California Agricultural Workers

Details

• Personal Author:
  Armitage T ; Joseph JG ; Mitchell DC ; Moyce S ; Schenker MB ; Tancredi DJ
• Description:
  Background Agricultural work can expose workers to increased risk of heat strain and volume depletion due to repeated exposures to high ambient temperatures, arduous physical exertion and limited rehydration. These risk factors may result in acute kidney injury (AKI). Methods We estimated incident AKI in a convenience sample of 283 agricultural workers based on elevations of serum creatinine between pre-and post-shift blood samples. Heat strain was assessed based on changes in core body temperature and heart rate. Volume depletion was assessed using changes in body mass over the work shift. Logistic regression models were used to estimate the associations of AKI with traditional risk factors (age, diabetes, hypertension and history of kidney disease) as well as with occupational risk factors (years in farm work, method of payment and farm task). Results Thirty-five participants were characterised with incident AKI over the course of a work-shift (12.3 % 95% confidence interval [CI] 8.5% to 16.2%). Workers who experienced heat strain (PSI >/= 7.5) had increased adjusted odds of AKI (adjusted odds ratio [AOR] 1.34, 95% CI: 1.04-1.74). Workers who were paid by the piece had AKI AOR of 4.24 (95% CI: 1.56-11.52). Discussion Heat exposure and piece-rate work are associated with incident AKI after a single shift of agricultural work. Modifications to payment structures may help prevent AKI. [Description provided by NIOSH]
• Subjects:
  Agriculture Farmers Heat Stress Disorders Hot Temperature Occupational Health Safety
• Keywords:
  Agricultural Workers Farm Workers Heat Exposure Heat Stress Kidney Function Physiological Effects
• ISSN:
  1351-0711
• Document Type:
  Text
• Funding:
  Cooperative Agreement
• Genre:
  Abstract or Summary
• Place as Subject:
  California ; OSHA Region 9
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  73
• NIOSHTIC Number:
  nn:20062204
• Citation:
  Occup Environ Med 2016 Sep; 73(Suppl 1):A146
• CAS Registry Number:
  Creatinine (CAS RN 60-27-5)
• Federal Fiscal Year:
  2016
• NORA Priority Area:
  Agriculture, Forestry and Fishing
• Performing Organization:
  University of California - Davis
• Peer Reviewed:
  False
• Start Date:
  20010930
• Source Full Name:
  Occupational and Environmental Medicine. Occupational Health: Think Globally, Act Locally, EPICOH 2016, September 4-7, 2016, Barcelona, Spain
• Supplement:
  1
• End Date:
  20270929
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:9e1c40f590284f2acca1694513c53d7bfb500375709314b000fdb964a6dc3005343ead80145da56b645f9f2cea05752e5fc9fb401e86703c2fc025a9dfaa277d
• Download URL:
  https://stacks.cdc.gov/view/cdc/225500/cdc_225500_DS1.pdf
• File Type:
  [PDF - 65.51 KB ]