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Table 3 Correlation of grade of obstruction with grade of hydronephrosis, stone size, serum creatinine level, and stone location (Spearman rank correlation coefficient)

From: Functional aspects of silent ureteral stones investigated with MAG-3 renal scintigraphy

 

Grade of obstruction (MAG-3)

Grade of hydronephrosis

 

Correlation coefficient

0.06

P value

0.84

Stone size

 

Correlation coefficient

0.61

P value

0.02

Serum creatinine level

 

Correlation coefficient

0.38

P value

0.18

Stone location

 

Correlation coefficient

0.08

P value

0.79