Table 1.
Characteristics of patients and controls by presence of renal stones.
| Renal stone (n=59) | No renal stone (n=40) | P | |
|---|---|---|---|
| Age (years) 4 | 41.5 (14.9) | 39.2 (12.7) | NS |
| MAC (n and %) | 11 (18) | 1 (2.5) | .01 |
| Urine dypiridoline (nM/L) | 91.6 (63.8) | 101.7 (46.3) | NS |
| Dypiridoline/creatinine | 7.3 (1.3) | 6.8 (1.1) | NS |
| Urine creatinine (mg/dL) | 126.1 (71.1) | 153.3 (62.7) | .05 |
| Urine phosphorous (mg/dL) | 36.8 (24.9) | 60.1 (38.9) | <.001 |
| Urine magnesium (mg/dL) | 5.5 (3.5) | 11.3 (19.1) | .02 |
| Urine calcium (mg/dL) | 10.9 (9.6) | 14.3 (14.4) | NS |
| Urine sodium (mEq/L) | 120.9 (57.1) | 184.4 (69.5) | <.001 |
| Urine potassium (mEq/L) | 43.5 (22) | 68.6 (24.5) | <.001 |
| Urine chloride (mEq/L) | 166.7 (85.5) | 250.3 (95.1) | <.001 |
| Serum PTH (pg/mL) | 59 (51.3) | 45.9 (19.3) | NS |
| Cholesterol (mg/dL) | 168.1 (35.6) | 155.04 (25.4) | .04 |
| HDL-cholesterol (mg/dL) | 33.2 (7.3) | 37.1 (7.2) | .01 |
| LDL-cholesterol (mg/dL) | 100.2 (30.3) | 86 (19.9) | .01 |
| Triglyceride (mg/dL) | 173.1 (102.5) | 159.0 (102.9) | NS |
| Alkaline phosphatase (U/L) | 194.7 (54.8) | 166.2 (45.2) | .008 |
| Serum Creatinine (mg/dL) | 1.08 (05) | 1.02 (03) | NS |
| Serum phosphorous (mg/dL) | 3.1 (0.7) | 3.3 (0.5) | NS |
| Serum magnesium (mg/dL) | 2.1 (0.2) | 2.1 (0.2) | NS |
| Serum calcium (mg/dL) | 9.3 (0.5) | 9.1 (0.4) | .07 |
| Serum sodium (mg/dL) | 137.4 (4.5) | 136.4 (2.6) | NS |
| Serum potassium (mg/dL) | 4.2 (0.7) | 3.9 (0.2) | .01 |
| Serum chloride (mg/dL) | 101.7 (4.2) | 103.3 (2.2) | .03 |
| BMI | 27.2 (4.6) | 26.2 (5.8) | NS |
| T-score | -0.7 (1.3) | -0.4 (1.0) | NS |
MAC: mitral annular calcification, PTH: parathyroid hormone, LDL: low-density lipoprotein, HDL: high-density lipoprotein.