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Table 4 Correlation between BMI and operation outcome (univariate and multivariate analysis)

From: Impact of weight on stone-free rate during percutaneous nephrolithotomy

  BMI P values
Mean operative time (min) .156 0.085
Mean fluoroscopy time (minutes) .391 0.000
Mean hospitalization duration (days) .291 0.001
Mean hemoglobin drop (g/dl) .141 0.121
Postoperative complications .036 0.696