ABSTRAK
Kasus kristalisasi urin terdapat pada hampir semua bangsa, namun prevalensinyabelum tercatat karena kristalisasi urin merupakan indikator awal batu salurankemih. Desain studi penelitian ini adalah sequential exploratory yang bertujuanuntuk melihat hubungan faktor pekerjaan dan individu dengan kristalisasi urinpada pekerja welding. Analisis secara univariat dan bivariat dengan menggunakanuji statistik chi square dan T-test independent didapatkan faktor risiko yangberhubungan dengan kasus kristalisasi urin adalah berat badan (OR=1,38; 95%CI=1,09?1,92), keseimbangan cairan tubuh (OR=5,77; 95%CI=2,79?11,33), dankonsumsi makanan tinggi purin perbulan (P-value 0,04; SD: 237,1). Disarankanpeningkatan aktivitas fisik, penyediaan minum lebih layak, dan pengaturan polamakan.

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ABSTRACT
Crystalluria are found nearly in all nations but the exact number of cases areunrecorded because crystalluria is the early indicator for urolithiasis. Anobservational research and sequential exploratory design were used to analyzethe risk factors of crystalluria among welding workers. Univariate and bivariateanalysis were used by chi square and independent T-test. This research found thatthe significant risk factors to the occurrence of crystalluria were body weight (OR= 1,38; 95% CI = 1,09 to 1,92), the balance of body fluids (OR = 5,77; 95% CI =2,79 to 11,33), and high purine foods consumption (P-value of 0,04; SD: 237,1).So, the recommendation for controlling risk factors of crystalluria are increasingphysical activity, hydration, and dietary adjustments