Table 1.

Average NRS pain scores depending on the variables tested in subgroup analysis

	Mean NRS pain score	n (day 1)	p-value
Gender: male	2.22	83	> 0.05
Gender: female	2.19	68
LN: ISKD	2.00	16	> 0.05
LN: phenix	1.09	7
LN: fitbone TAA	2.39	90
LN: fitbone SAA	2.39	25
LN: precice	2.01	28
Femur: antegrade	2.36	106	> 0.05
Femur: retrograde	2.35	61
Bone: femur	2.35	113	> 0.05
Bone: tibia	2.17	54
Age 0–20	2.10	67	> 0.05
Age 21–40	2.47	65
Age 41–60	2.31	35
Age 61–80	1.00	1
Left leg	2.23	91	> 0.05
Right leg	2.36	76