Skip to main content
. Author manuscript; available in PMC: 2014 Apr 1.
Published in final edited form as: Kidney Int. 2013 May 22;84(4):818–825. doi: 10.1038/ki.2013.189

Table 1.

Patient information and urinary values by stone type

CaOx
(N = 37)
CaOx-MAL
(N = 8)
CaPO4
(N = 12)
Struvite
(N = 9)
UricAcid
(N = 4)
Other
(N = 8)
p value
Age 0.0047
 Mean (SD) 62.5 (9.7) 61.1 (9.8) 44.6 (14.2) 59.2 (16.4) 53.3 (8.4) 45.7 (20.2)
Gender 0.71
 Male 11 (29.7%) 2 (25.0%) 5 (41.7%) 5 (55.6%) 1 (25.0%) 3 (37.5%)
Stones on CT 0.53
 Median 1.5 2.0 4.0 1.0 1.0 3.0
Plaque, average % 0.87
 Mean (SD) 3.6 (4.2) 3.1 (2.3) 2.8 (2.6) 2.1 (2.0) 1.7 (1.5) 2.3 (1.5)
 Median 1.8 2.5 1.9 1.7 1.1 1.7
Plug, average % 0.18
 Mean (SD) 0.3 (0.7) 1.1 (2.6) 3.4 (7.7) 0.5 (1.3) 0.2 (0.3) 0.8 (1.1)
 Median 0.0 0.1 1.1 0.0 0.1 0.4
Plug, > 1% 0.013
 Yes 4 (10.8%) 2 (25.0%) 7 (58.3%) 1 (11.1%) 0 (0.0%) 2 (25.0%)
Current
Medications
Thiazides 5 1 0 0 0 2
Citrate 1 2 1 1 0 1
Allopurinol 1 2 0 0 2 3
Urine Labs: Mean(SD)
Cr mg/24hr 1207 (439) 951 (355) 1174 (340) 1016 (338) 1419 (385) 1130 (421) 0.45
Na mmol/24hr 145 (63) 104 (81) 137 (53) 121 (44) 120 (76) 167 (124) 0.88
Phos mg/24hr 775 (407) 644 (267) 899 (248) 752 (418) 798 (268) 846 (381) 0.44
K mmol/24hr 58 (21) 44 (37) 82 (80) 58 (24) 56 (25) 65 (34) 0.17
UA mg/24hr 522 (199) 352 (155) 510 (110) 500 (163) 504 (229) 406 (172) 0.29
Cl mmol/24hr 133 (58) 111 (65) 136 (81) 110 (37) 122 (78) 157 (136) 0.82
Ca mg/24hr 210 (101) 133 (66) 228 (55) 212 (66) 130 (88) 140 (114) 0.036
Mg mg/24hr 95 (38) 110 (67) 103 (42) 106 (32) 94 (78) 112 (43) 0.82
Oxalate mmol/24hr 0.3 (0.2) 0.4 (0.3) 0.3 (0.1) 0.3 (0.2) 0.3 (0.2) 0.6 (0.3) 0.17
Osm 466 (155) 426 (158) 563 (193) 465 (216) 701 (112) 379 (79) 0.031
pH 6.2 (0.5) 5.9 (0.5) 6.5 (0.5) 6.4 (0.6) 5.3 (0.3) 6.2 (0.5) 0.0088
Citrate mg/24hr 618 (304) 214 (239) 459 (220) 378 (202) 738 (298) 292 (400) 0.0007
Sulfate mmol/24hr 17 (8) 11 (4) 17 (4) 16 (6) 21 (7) 14 (7) 0.12
Volume mL 2046 (802) 1798 (878) 1797 (738) 2040 (929) 1294 (488) 2393 (914) 0.33
CaOx SS (DG) 1.4 (0.8) 1.6 (0.7) 1.9 (0.4) 1.8 (0.3) 0.9 (1.6) 1.4 (0.8) 0.59
Brushite SS (DG) −0.3 (1.3) −1.1 (1.2) 1.0 (0.8) 0.6 (1.0) −2.3 (0.8) −0.9 (1.2) 0.0002
Apatite SS (DG) 4.1 (2.2) 2.8 (2.1) 6.2 (1.4) 5.2 (2.0) 0.2 (1.2) 3.7 (2.8) 0.0005
Uric Acid SS (DG) −1.4 (2.8) −0.7 (3.2) −2.7 (3.0) −2.3 (3.5) 3.7 (1.0) −2.8 (3.8) 0.045
Sodium Urate SS (DG) 0.6 (1.2) −0.4 (1.3) 1.1 (0.9) 0.6 (1.3) 1.0 (3.0) 0.1 (0.8) 0.12