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Table 4 Preoperative laboratory patient data

From: Kidney stone formers have more renal parenchymal crystals than non-stone formers, particularly in the papilla region

Parameter Total, mean (SD) P-value* Men, mean (SD) P-value* Women, mean (SD) P-value*
SFs NSFs   SFs NSFs SFs NSFs  
WBC (× 103/μL) 5.7 (1.4) 6.4 (1.8) 0.1172 5.9 (1.4) 6.7 (1.8) 0.0870 5.1 (0.9) 5.0 (1.2) 0.8366
Neutrophil (%) 62.1 (8.6) 62.4 (6.5) 0.8800 62.4 (8.9) 62.8 (6.0) 0.8742 59.3 (7.4) 61.1 (9.3) 0.8125
Eosinophil (%) 3.3 (3.3) 3.0 (2.3) 0.7481 3.6 (3.4) 3.1 (2.4) 0.5742 1.4 (0.80) 2.7 (1.9) 0.2588
Basophil (%) 0.4 (0.3) 0.5 (0.4) 0.3021 0.5 (0.3) 0.5 (0.4) 0.5532 0.2 (0.20) 0.5 (0.1) 0.0656
Monocyte (%) 5.2 (1.6) 5.5 (1.7) 0.5208 5.4 (1.4) 5.6 (1.2) 0.7515 3.6 (1.90) 4.9 (3.3) 0.5034
Lymphocyte (%) 27.6 (6.0) 28.7 (6.2) 0.5075 27.4 6.0) 28.3 (6.3) 0.6122 29.1 (6.9) 30.8 (5.1) 0.6899
RBC (×106/μL) 4.3 (0.6) 4.6 (0.6) 0.0290 4.3 (0.5) 4.7 (0.6) 0.0592 4.1 (0.40) 4.5 (0.3) 0.8366
Hemoglobin (g/dL) 13.0 (1.9) 14.0 (1.8) 0.0360 13.2 (1.8) 14.3 (1.7) 0.0393 11.8 (1.8) 12.4 (1.0) 0.4845
Hematocrit (%) 39.5 (4.7) 42.3 (4.8) 0.0268 40.1 (4.6) 43.2 (4.7) 0.0248 36.9 (4.4) 38.2 (2.7) 0.6088
Platelets (×103/μL) 216.0 (56.5) 211.7 (46.1) 0.7496 215.4 (61.9) 212.5 (46.4) 0.8554 218.9 (18.6) 207.4 (49.7) 0.6434
APTT (%) 97.1 (13.4) 96.3 (12.9) 0.8171 96.2 (12.1) 96.0 (13.7) 0.9551 101.4 (19.7) 97.9 (8.2) 0.7198
PT (%) 96.6 (13.2) 102.2 (14.5) 0.1611 86.1 (11.3) 102.7 (17.3) 0.1310 98.4 (21.8) 99.5 (12.8) 0.9303
PT/INR 1.04 (0.10) 1.01 (0.10) 0.2293 1.04 (0.09) 1.00 (0.11) 0.2641 1.04 (0.10) 1.01 (0.08) 0.6996
Fibrinogen (mg/dL) 327.8 (93.5) 319.6 (70.4) 0.7069 336.6 (98.2) 319.0 (74.1) 0.4818 285.4 (54.4) 322.8 (54.5) 0.3090
TP (g/dL) 7.3 (0.4) 7.33 (0.4) 0.6528 7.2 (0.4) 7.3 (0.5) 0.6805 7.5 (0.50) 7.6 (0.2) 0.8124
Albumin (g/dL) 4.3 (0.5) 4.33 (0.4) 0.9494 4.3 (0.60) 4.3 (0.4) 0.9010 4.6 (0.21) 4.4 (0.2) 0.3126
GOT (U/L) 20.8 (5.7) 23.3 (9.8) 0.2365 21.3 (5.9) 22.2 (8.0) 0.6390 18.4 (4.5) 28.6 (16.4) 0.2170
GPT (U/L) 20.9 (10.4) 26.2 (19.2) 0.1947 21.7 (10.3) 24.2 (11.6) 0.4303 16.8 (11.0) 36.0 (41.6) 0.3476
LDH (U/L) 198.1 (33.2) 185.8 (29.9) 0.1619 196.2 (34.9) 181.2 (24.6) 0.0975 212.3 (11.2) 213.5 (46.8) 0.9686
ALP (U/L) 233.6 (63.0) 241.3 (64.5) 0.6470 236.7 (57.9) 237.0 (62.2) 0.9828 219.0 (90.4) 262.4 (35.4) 0.4428
γ-GTP (U/L) 51.6 (63.2) 28.1 (10.2) 0.5916 60.5 (67.4) 29.0 (10.8) 0.1430 14.0 (0.1) 25.3 (0.1) 0.0771
Creatinine (mg/dL) 0.9 (0.2) 0.82 (0.2) 0.4937 0.9 (0.2) 0.9 (0.2) 0.4700 0.7 (0.2) 0.6 (0.0) 0.8480
Uric acid (mg/dL) 6.0 (1.7) 6.14 (1.6) 0.6891 6.1 (1.7) 6.5 (1.4) 0.4115 5.1 (1.3) 4.2 (1.2) 0.4009
BUN (mg/dL) 15.9 (4.9) 15.3 (3.3) 0.5500 15.9 (4.6) 15.5 (3.4) 0.7763 16.2 (6.6) 15.0 (2.6) 0.5092
Glucose (mg/dL) 122.5 (31.8) 129.2 (47.2) 0.5253 121.0 (33.4) 132.0 (49.6) 0.3690 130.0 (23.6) 115.4 (30.9) 0.4252
Calcium (mg/dL) 9.8 (0.3) 9.71 (0.4) 0.5741 9.8 (0.3) 9.7 (0.4) 0.3148 9.7 (0.3) 9.9 (0.1) 0.2483
e-GFR 71.4 (20.7) 74.9 (18.3) 0.4961 71.0 (20.8) 72.7 (14.0) 0.7287 73.4 (22.5) 85.2 (32.5) 0.5226
Urinary specific gravity 1.016 (0.006) 1.016 (0.006) 0.8782 1.016 (0.006) 1.016 (0.006) 0.9044 1.013 (0.006) 1.016 (0.009) 0.6434
Urinary pH 6.0 (0.7) 6.32 (0.8) 0.0899 5.9 (0.6) 6.3 (0.8) 0.0604 6.3 (1.2) 6.4 (0.8) 0.8783
Urinary RBC (/μL) 68.3 (37.8) 11.9 (5.5) 0.0343 80.1 (45.8) 5.7 (1.4) 0.0108 14.0 (9.1) 43.1 (30.9) 0.4647
Urinary WBC (/μL) 56.7 (38.7) 11.5 (7.4) 0.0117 54.5 (46.5) 3.6 (0.8) 0.0036 66.5 (40.5) 50.9 (43.4) 0.7540
Urinary epithelium (/μL) 4.0 (1.1) 2.66 (1.0) 0.1073 2.9 (1.0) 1.3 (0.2) 0.1428 9.4 (3.4) 9.7 (4.8) 0.6761
Urinary casts (/μL) 0.4 (0.1) 0.2 (0.1) 0.2339 0.5 (0.1) 0.1 (0.0) 0.1217 0.2 (0.2) 0.5 (0.4) 0.8345
Urinary bacteria (×103/μL) 5.4 (3.0) 1.12 (0.2) 0.0014 2.4 (0.6) 0.9 (0.1) 0.0010 19.2 (16.8) 2.3 (0.9) 0.4647
Urinary volume (L/day) 1.4 (0.5) 1.6 (0.6) 0.1511 1.4 (0.5) 1.6 (0.3) 0.3038 0.9 (0.4) 1.5 (0.7) 0.2225
  1. SD standard deviation, SFs stone formers, NSFs non-stone formers, WBC white blood cell, RBC red blood cell, APTT activated partial thromboplastin time, PT prothrombin time, PT/INR prothrombin time international normalized ratio, TP total protein, GOT glutamic oxaloacetic transaminase, GPT glutamic pyruvic transaminase, LDH lactate dehydrogenase, ALP alkaline phosphatase, γ-GTP γ-glutamyl transpeptidase, BUN blood urea nitrogen, e-GFR estimated glomerular filtration rate
  2. The bold numbers indicate statistically significant differences (*P < 0.05) by Student’s t-test or the Mann–Whitney U-test