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Table 5 Multiple linear regression analysis model for hematoma volume (logarithmic converted)

From: Association between serum calcium levels and prognosis, hematoma volume, and onset of cerebral hemorrhage in patients undergoing hemodialysis

  Model 1 Model 2
β Standard Error P value β Standard Error P value
Age (year) 0.011 0.008 0.2 0.007 0.008 0.4
Female −0.031 0.086 0.7 −0.013 0.089 0.9
sBP pre-HD proximate the onset(/mmHg) 0.007 0.003 0.08 0.006 0.003 0.09
Corrected serum calcium (mg/dL) 0.381 0.093 0.02 0.378 0.101 < 0.001
Antiplatelet use     0.24 0.089 0.005
R2   0.17    0.26  
  1. dBP pre-HD diastolic pressure pre-hemodialysis, iPTH intact parathyroid hormone, sBP pre-HD systolic blood pressure pre-hemodialysis
  2. Model 1: including age, sex, sBP pre-HD proximate the onset, corrected serum calcium
  3. Model 2: in addition to the model 1’s parameter, antiplatelet use was selected by stepwise method (mixed method)