Heat strain, volume depletion and kidney function in California agricultural workers

Details

• Alternative Title:
  Occup Environ Med
• Personal Author:
  Moyce, Sally ; Mitchell, Diane ; Armitage, Tracey ; Tancredi, Daniel ; Joseph, Jill ; Schenker, Marc
• 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 AKI cumulative incidence in a convenience sample of 283 agricultural workers based on elevations of serum creatinine between preshift and postshift 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
  
  35 participants were characterised with incident AKI over the course of a work shift (12.3%). Workers who experienced heat strain had increased adjusted odds of AKI (1.34, 95% CI 1.04 to 1.74). Piece rate work was associated with 4.24 odds of AKI (95% CI 1.56 to 11.52). Females paid by the piece had 102.81 adjusted odds of AKI (95% CI 7.32 to 1443.20).
  
  Discussion
  
  Heat strain and piece rate work are associated with incident AKI after a single shift of agricultural work, though gender differences exist. Modifications to payment structures may help prevent AKI.
  
  
• Subjects:
  Acute Kidney Injury Adult Agricultural Workers' Diseases Agriculture Body Mass Index California Creatinine Farmers Female Glomerular Filtration Rate Heat Stress Disorders Hot Temperature Humans Logistic Models Male Mass Spectrometry Middle Aged Obesity Occupational Exposure Risk Factors Sex Distribution Surveys And Questionnaires Young Adult

  More +
• Source:
  Occup Environ Med. 74(6):402-409
• Pubmed ID:
  28093502
• Pubmed Central ID:
  PMC5771643
• Document Type:
  Journal Article
• Funding:
  R01 OH010243/OH/NIOSH CDC HHSUnited States/ ; R18 DK096429/DK/NIDDK NIH HHSUnited States/
• Volume:
  74
• Issue:
  6
• Collection(s):
  CDC Public Access
• Main Document Checksum:
  urn:sha256:748bb2278ee80c481cfda31a6c1fed055858864ddff233b82a5d875e194592b4
• Download URL:
  https://stacks.cdc.gov/view/cdc/51029/cdc_51029_DS1.pdf
• File Type:
  [PDF - 396.22 KB ]