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Table 2 Magnesium/creatinine and calcium/creatinine in urine (mmol/L) among subjects with an initial level less than 0.40 mmol/L magnesium before and after intervention with different waters.

From: Mineral water intake reduces blood pressure among subjects with low urinary magnesium and calcium levels

Water n Before After p
Magnesium     
A 18 0.25 (0.08) 0.26 (0.07)  
B 18 0.28 (0.06) 0.34 (0.09) 0.009
C 19 0.30 (0.07) 0.35 (0.09) 0.019
Calcium     
A 18 0.40 (0.22) 0.35 (0.40)  
B 18 0.33 (0.12) 0.35 (0.40)  
C 19 0.34 (0.13) 0.38 (0.16)