Table 4.

Treatment Group Differences/Trends in the Daily Incidence of Any Moderate Pain and Any Severe Pain as measured by the QoR-40

	Day 1	Day 2	Day 3	Day 4
Any Moderate Pain Overall	179/223 (80%)	185/223 (83%)	170/224 (76%)	156/215 (73%)
SbSi	64/73 (88%)	62/74 (84%)	57/73 (78%)	56/70 (80%)
LbSi	62/77 (80%)	64/77 (83%)	59/78 (76%)	55/75 (73%)
LbLi	53/73 (73%)	59/72 (82%)	54/73 (74%)	45/70 (64%)
P values	SbSi > LbLi, P=0.023	NS	NS	SbSi > LbLi, P=0.038
Any Severe Pain Overall	68/223 (30%)	845/225 (37%)	74/224 (33%)	60/215 (28%)
SbSi	30/73 (41%)	33/74 (45%)	28/73 (38%)	24/70 (34%)
LbSi	24/77 (31%)	32/78 (41%)	28/78 (36%)	17/75 (23%)
LbLi	14/73 (19%)	19/73 (26%)	18/73 (25%)	19/70 (27%)
P value	SbSi > LbLi, P=0.004 (LbSi > LbLi, P=0.09)	LbSi > LbLi, P=0.05 SbSi > LbLi, P=0.019	NS (SbSi > LbLi, P=0.075)	NS

QoR-40: Quality of Recovery 40-item scale

There were no significant demographic differences between respondents and non-respondents.

SbSi: placebo perineural femoral catheter treatment group that received saline bolus and infusion.

LbSi: perineural femoral catheter treatment group that received levobupivacaine bolus and saline infusion.

LbLi: perineural femoral catheter treatment group that received levobupivacaine bolus and levobupivacaine infusion.