From: Effect of calcium content of diet on crystal formation in urine of patients with calcium oxalate stones: a randomized crossover clinical trial
Group
Age
Sex distribution
pH
Specific gravity
Urinary calcium/creatinine ratio
Male
Female
Low-calcium meal
High-calcium meal
A
43.7
22
8
5.84
1.016
0.072
0.131
B
40.1
5.94
1.017
0.075
0.125
p value
0.342
1.000
0.194
0.843
0.232
0.084