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

Table 2 The relationship of patient variables with the bupivacaine dose for loss of pinprick discrimination at T₁₂ and T₁₀

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
Patient characteristics	r	p value	r	p value
Age	−0.335	<0.001	−0.362	<0.001
Height	0.367	<0.001	0.195	0.0324
Weight	−0.494	<0.001	−0.460	<0.001
Vertebral column length	0.383	<0.001	0.203	0.0257
Abdominal girth	−0.827	<0.001	−0.806	<0.001

ISSN: 1471-2253