Table 1 Comparison of baseline characteristics and clinical outcomes between the sarcopenia, dynapenia and normal groups.

From: Impact of Sarcopenia on Clinical Outcomes of Minimally Invasive Lumbar Decompression Surgery

Variables

Sarcopenia group

Dynapenia group

Normal group

P value

Numbers (%)

26 (20.0)

41 (31.5)

57 (43.8)

 

Age (years)

80.9 (5.7)

77.5 (6.3)

74.6 (5.8)

<0.001

Men/women

10/16

15/26

43/14

<0.001

BMI (Kg/m2)

19.9 (1.6)

23.8 (3.5)

24.6 (2.5)

<0.001

Follow up period (days)

1196.1 (977.8)

1330.3 (1216.3)

1093.8 (935.5)

0.573

SMI (kg/m2)

5.88 (0.66)

7.11 (1.12)

7.80 (1.07)

<0.001

Handgrip strength (kg)

20.3 (8.0)

22.1 (8.8)

23.2 (9.0)

0.374

Gait speed (m/s)

0.88 (0.23)

0.90 (0.27)

0.97 (0.29)

0.263

JOA score

before surgery

at the final F/U

12.8 (4.6)

24.0 (4.6)

12.8 (4.9)

24.0 (3.9)

12.2 (3.7)

24.4 (3.0)

0.737

0.826

Improvement ratio of JOA score (%)

66.8 (23.5)

68.9 (22.1)

72.9 (17.4)

0.447

Low back pain

before surgery

at the final F/U

43.5 (29.0)

29.8 (25.5)

44.2 (28.0)

19.6 (24.7)

48.2 (30.4)

19.1 20.8)

0.742

0.125

Leg pain

before surgery

at the final F/U

59.7 (27.9)

23.1 (29.0)

58.5 (29.7)

18.9 (29.6)

63.6 (27.0)

23.3 (27.4)

0.681

0.729

Leg numbness

before surgery

at the final F/U

56.1 (27.1)

26.5 (27.1)

56.8 (31.4)

39.3 (33.7)

60.0 (30.0)

27.4 (29.8)

0.474

0.126