Gender-specific sarcopenia screening in hemodialysis: insights from lower limb strength and physiological indicators

Table 3 Lower limb strength indicators ranked by the average ranking of feature importance and absolute feature weight of Lasso regression about males and females

Feature	IRF	RIFI	AFWL	RAFWL	AR	P
Male
Ankle joint flexion force of left leg	0.2147	1	1.0255	2	1.5	< 0.001
Hip joint extension force of right leg	0.1761	3	1.2222	1	2	0.005
Knee joint extension force of right leg	0.1831	2	0.7934	4	3	0.003
Hip joint extension force of left leg	0.1363	5	0.7948	3	4	0.008
Ankle joint flexion force of right leg	0.1607	4	0.2726	5	4.5	0.004
Knee joint extension force of left leg	0.1292	6	0.2166	6	6	0.011
Female
Hip joint extension force of left leg	0.2054	1	0.8752	1	1	< 0.001
Ankle joint flexion force of left leg	0.1592	4	0.5104	2	3	0.001
Ankle joint flexion force of right leg	0.1937	2	0	5	3.5	0.008
Hip joint extension force of right leg	0.1878	3	0	5	4	< 0.001
Knee joint extension force of left leg	0.1283	5	0.1332	3	4	0.018
Knee joint extension force of right leg	0.1257	6	0.1188	4	5	0.073

IRF: importance value calculated by random forest, RIRF: ranking of importance value calculated by random forest, AFWL: absolute feature weight of lasso regression, RAFWL: ranking of absolute feature weight of lasso regression, AR: average ranking

ISSN: 1471-2369