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Table 1 Pre and post-operative measurements

From: Measurement of glomerular filtration rate in patients undergoing obesity surgery

  Pre-op (n = 9) Post-op (n = 9) P value
Age (year) 62.0 (50.5–63.0)   
Male (%,n) 55.56%, 5   
Weight (kg) 127.0 (116.5–144.8) 100.2 (83.6–110.9) 0.004
BMI (kg/m2) 45.5 (42.2–47.8) 34.3 (29.3–38.3) 0.008
BSA (m2) 2.28 (2.18–2.45) 2.08 (1.97–2.14) 0.004
Creatinine (μmol/L) 122.5 (96.8–149.5) 110.0 (88.0–116.0) 0.01
Cystatin C(mg/L) 1.6 (1.3–2.1) 1.7 (1.4–1.8) 0.64
EDTA GFR 58.0 (48.5–91.0) 59.0 (48.9–72.5) 0.38
EDTA GFR corrected for BSA (ml/min/1.73 m2) 43.6 (37.0–65.0) 45.8 (41.7–63.2) 0.30
MDRD eGFR (mL/min/1.73m2) 51.0 (38.3–60.3) 53.5 (42.3–65.3) 0.08
CKD Epi (mL/min/1.73m2) 54.0 (42.0–65.0) 61.0 (48.5–71.0) 0.008
CKD Epi cystatin (mL/min/1.73m2) 39.0 (27.0–49.0) 40.0 (34.5–49.8) 1.0
CKD Epi cystatin creatinine (mL/min/1.73m2) 43.0 (`33.0–56.0) 47.5 (42.0–54.8) 0.34
Cockcroft Gauld Creatinine clearance, adjusted (mL/min/1.73 m2) 77.2 (61.6–89.0) 75.0 (64.1–92.3) 0.93
  1. Abbreviations: BMI body mass index, BSA body surface area, CKD Epi chronic kidney disease epidemiology collaboration, EDTA ethylenediamine tetraacetic acid, eGFR estimated glomerular filtration rate, MDRD modification of diet in renal disease