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Table 5 Urinary lithogenic risk factors on a 24-hour urine collection in healthy women split into two groups based on the Index of Lean Mass (ILM)

From: Influence of lean and fat mass on bone mineral density and on urinary stone risk factors in healthy women

  Group A Group B P (*) p critical values (0.0038 < p < 0.003)
Low lean mass High lean mass
ILM < 1296 ILM > 1296
N. 39 N. 39
Volume, ml 1603 ± 698 1640 ± 835 0.832  
Creatinine, mg/24 h 991 ± 194 1138 ± 191 0.001 ###
Urea, mg/24 h 22 ± 6 23 ± 6 0.486  
Sodium, mEq/24 h 124 ± 49 143 ± 45 0.072  
Potassium, mEq/24 h 47 ± 13 60 ± 18 <0.001 ###
Calcium, mg/24 h 156 ± 62 188 ± 91 0.076  
Phosphorus, mg/24 h 520 ± 174 665 ± 186 <0.001 ###
Magnesium, mg/24 h 66 ± 20 85 ± 26 <0.001 ###
Chloride, mEq/24 h 131 ± 50 151 ± 49 0.074  
Uric acid, mg/24 h 456 ± 136 508 ± 116 0.077  
Citrate, mg/24 h 620 ± 178 807 ± 323 0.002 ###
Oxalate, mg/24 h 21 ± 7 27 ± 11 0.015  
Sulfate, mmol/24 h 16 ± 4 18 ± 5 0.085  
Ammonium, mmol/24 h 27 ± 11 30 ± 9 0.275  
pH 24 h 5.95 ± 0.51 5.96 ± 0.45 0.961  
  1. Data were reported as mean ± standard deviation (SD).
  2. *p value was calculated with independent Student’s t-test.
  3. ###Significant differences with p adjusted by Holm’s test.