Renal Function Analysis of Crane Operators in a Container Terminal and its Related Factors

ABSTRACT
Objective. The objective of this study was to assess factors related to renal function in crane operators at a port
container terminal in Indonesia.
Methods. A cross-sectional study on crane operators in Medan Container Terminal, Indonesia, was conducted. Renal
function was measured through Glomerular Filtration Rate (GFR). Individual characteristics such as age, nutritional
status, fluid consumption, hydration status, and physical activity level were collected. Fluid consumption was
obtained from a 24-h food recall questionnaire. Physical activity was measured based on the Bouchard questionnaire.
Association was determined by calculating the odds ratio (OR) and its 95% confidence interval (CI).
Results. A total of 87 subjects were involved. All were male with the median age of 30.1 ± 2.4 years old. The prevalence
of decreased renal function was 49.4%. Inadequate fluid consumption (OR = 6.1, 95% CI 2.1 -17.7; p