. Author manuscript; available in PMC: 2015 Mar 1.

Published in final edited form as: Reg Anesth Pain Med. 2014 Mar-Apr;39(2):89–96. doi: 10.1097/AAP.0000000000000035

Table 1.

Population data and procedural information

Perineural Infusion:	Ropivacaine (n=30)	Placebo (n=30)
Age (yr)	48 (40–54)	49 (40–57)
Height (cm)	165 (161–170)	166 (163–170)
Weight (kg)	62 (56–72)	61 (54–69)
Body mass index (kg/m²)	23 (20–26)	24 (20–26)
Unilateral mastectomy
With lymph node dissection	8	10
Without lymph node dissection	3	3
Bilateral mastectomy
With lymph node dissection	14	12
Without lymph node dissection	5	5
Surgical duration (min)	190 (125–205)	184 (132–229)
Worst pain during catheter insertion (NRS)	5.0 (2.5–6.0)	2.5 (1.3–4.5)
Midazolam for catheter insertion(s) (mg)	2 (2–3)	2 (2–4)
Fentanyl for catheter insertion(s) (μg)	100 (50–100)	100 (75–100)

Values are reported as median (interquartile) or number of subjects, as indicated

NRS: Numeric Rating Scale