Longitudinal Renal Function Degradation Among Florida Agricultural Workers.

OBJECTIVE: This longitudinal study evaluated renal function and acute kidney injury (AKI) over time in U.S. agricultural workers. METHODS: We followed Florida agricultural workers from January 2020 to August 2022, collecting blood and urine pre- and post-workday during 5 visits. RESULTS: Pre-workday eGFR function in all participants was lower in summers but relatively consistent over time. In participants who worked almost exclusively in fernery operations (piece-rate compensation), we observed a high incidence of post-workday AKI in 2020 (21%) that increased to 43% by the end of the study. In comparison, 11% of nursery workers (hourly compensation) had AKI, and this rate was fairly stable. CONCLUSION: AKI risk over time differs according to the type of agricultural work. Piece rate workers who are incentivized to forgo rest breaks and hydration to earn higher wages demonstrate steadily increasing rates of AKI.

Hydration Interventions Among Agricultural Workers: A Pilot Study.

OBJECTIVE: To estimate the impact of hydration interventions on postworkday hydration status and incidence of acute kidney injury (AKI). METHODS: Thirty agricultural workers were first monitored on a workday without any interventions. On the intervention workday, the same workers were randomized to one of two groups: 169 ounces (oz) (5 L) of plain water (n = 16) or 169 oz (5L) of water with electrolytes (n = 14). RESULTS: No participants in the electrolyte group had an estimate glomerular filtration rate (eGFR) at the end of the workday of less than 90 mL/min/1.73 m2 or met the criteria for AKI in comparison to the water group (eGFR < 90: 15%; AKI: 23%) or the control group (eGFR < 90: 28%; AKI: 18%). CONCLUSION: The study showed that drinking water with electrolytes may lower the risk for development of AKI among agricultural workers.