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Table 3 The combined linear regression of patient variables with bupivacaine dose for loss of pinprick discrimination at T12 and T10

From: Abdominal girth and vertebral column length can adjust spinal anesthesia for lower limb surgery, a prospective, observational study

Patient characteristics

0.5 % plain bupivacaine volume for loss of pinprick discrimination at T12

0.5 % plain bupivacaine volume for loss of pinprick discrimination at T10

b

p value

95 % CI

b

p value

95 % CI

   

lower limit

upper limit

  

lower limit

upper limit

Age

0.016

0.667

−0.140

0.226

0.027

0.725

−0.100

0.232

Height

0.020

0.717

−0.122

0.267

0.084

0.164

−0.098

0.245

Weight

−0.062

0.422

−0.331

0.107

0.090

0.200

−0.119

0.231

Abdominal girth

−0.044

<0.001

−0.777

−0.563

−0.046

<0.001

−0.861

−0.713

Vertebral column length

0.045

<0.001

0.431

0.726

0.047

<0.001

0.399

0.648

  1. b: regression coefficient; 95 % CI: 95 % confidence interval for the partial correlation coefficients