Different Effect of Infused Water and Mineral Water on Urine Calcium Oxalate Crystal among Heat-Exposed Workers

Cici Wuni1), Ari Suwondo2), Nurjazuli2)


1)Masters Program in Health Promotion, Faculty of Public Health,

Universitas Diponegoro

2)Faculty of Public Health, Universitas Diponegoro



Background: The formation of calcium oxalate crystals can be caused by a hot working environment that affects the body’s fluid and electrolyte balance. One way to pre­vent calcium oxalate crystals is to consume lime. Lime contains active substances citrate, magnesium, and potassium which can inhibit the formation of calcium oxalate crys­tals. This study aimed to determine the different effect of infused water and mineral water on urine calcium oxalate crystal among heat-exposed workers.

Subjects and Method: This was a quasi-experiment study conducted at PT.X. A total sample of 64 production workers was selected for this study. The dependent variable was calcium oxalate crystal. The independent variable was types of water, either infused water or mineral water. The data on calcium oxalate crystal were obtained from the rou­­­tine urine examination of workers. The data were analyzed using Mann Whitney test.

Results: Scores in calcium oxalate crystal in the infused water group was lower than the mineral water group, and it was statistically significant.

Conclusion: Infused water is more effective in inhibiting the formation of calcium oxa­late crystal compared to mineral water.

Keywords: infused water, mineral water, calcium oxalate crystal

Correspondence: Cici Wuni. Masters Program in Health Promotion, Faculty of Public Health, Universitas Diponegoro, Jl. Prof. Soedarto, Tembalang, Semarang 50275, Central Java. Email: cici.wuni@gmail.com. Mobile: 085268201206.

DOI: https://doi.org/10.26911/theicph.2019.05.04


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