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Table 8 Urinary lithogenic risk factors on a 24-hour urine collection in healthy women, split into two groups based on the Index of Fat Mass (IFM)

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

  Group C Group D p (*)
Low fat mass High fat mass
IFM < 3.28 IFM > 3.28
N. 39 N. 39
Volume, ml 1692 ± 793 1551 ± 740 0.418
Creatinine, mg/24 h 1034 ± 201 1095 ± 207 0.188
Urea, mg/24 h 22 ± 6 22 ± 6 0.807
Sodium, mEq/24 h 130 ± 45 137 ± 51 0.501
Potassium, mEq/24 h 55 ± 18 53 ± 17 0.677
Calcium, mg/24 h 178 ± 90 167 ± 67 0.537
Phosphorus, mg/24 h 574 ± 196 611 ± 192 0.402
Magnesium, mg/24 h 80 ± 28 71 ± 21 0.138
Chloride, mEq/24 h 138 ± 48 144 ± 53 0.622
Uric acid, mg/24 h 469 ± 120 495 ± 136 0.363
Citrate, mg/24 h 736 ± 292 691 ± 261 0.478
Oxalate, mg/24 h 23 ± 7 26 ± 12 0.162
Sulfate, mmol/24 h 17 ± 4 17 ± 5 0.526
Ammonium, mmol/24 h 28 ± 9 29 ± 12 0.881
pH 24 h 6.00 ± 0.43 5.92 ± 0.53 0.451
  1. Data were reported as mean ± standard deviation (SD).
  2. *p value was calculated with independent Student’s t-test.