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Table 5 Comparisons of categorical data according to fat infiltration

From: The relationship between the degeneration and asymmetry of the lumbar multifidus and erector spinae muscles in patients with lumbar disc herniation with and without root compression

 

Hernia level

Radiculopathy side

Segment

Sex

 

L3-L4

L4-L5

L5-S1

Bilateral

Right

Left

L3-L4

L4-L5

L5-S1

Male

Female

Right MF

           

 < 10%

23 (41.1)

40 (44)

39 (51.3)

6 (54.5)

8 (47.1)

13 (56.5)

52 (48.6)a

20 (18.7)b

11 (10.3)b

44 (48.9)a

39 (16.9)b

10%-50%

29 (51.8)

47 (51.6)

33 (43.4)

4 (36.4)

8 (47.1)

10 (43.5)

51 (47.7)a

79 (73.8)b

78 (72.9)b

45 (50)a

163 (70.6)b

 > 50%

4 (7.1)

4 (4.4)

4 (5.3)

1 (9.1)

1 (5.9)

0 (0)

4 (3.7)a

8 (7.5)ab

18 (16.8)b

1 (1.1)a

29 (12.6)b

Left MF

           

 < 10%

24 (42.9)

43 (47.3)

39 (51.3)

4 (36.4)

8 (47.1)

13 (56.5)

55 (51.4)a

21 (19.6)b

9 (8.4)b

44 (48.9)a

41 (17.7)b

10%-50%

27 (48.2)

43 (47.3)

33 (43.4)

6 (54.5)

7 (41.2)

10 (43.5)

47 (43.9)a

79 (73.8)b

83 (77.6)b

45 (50)a

164 (71)b

 > 50%

5 (8.9)

5 (5.5)

4 (5.3)

1 (9.1)

2 (11.8)

0 (0)

5 (4.7)

7 (6.5)

15 (14)

1 (1.1)a

26 (11.3)b

Right ES

           

 < 10%

17 (30.4)

34 (37.4)

32 (42.1)

3 (27.3)

5 (29.4)

11 (47.8)

47 (43.9)a

18 (16.8)b

6 (5.6)c

33 (36.7)a

38 (16.5)b

10%-50%

38 (67.9)

56 (61.5)

43 (56.6)

8 (72.7)

12 (70.6)

12 (52.2)

59 (55.1)a

83 (77.6)b

77 (72)b

56 (62.2)a

163 (70.6)a

 > 50%

1 (1.8)

1 (1.1)

1 (1.3)

   

1 (0.9)a

6 (5.6)a

24 (22.4)b

1 (1.1)a

30 (13)b

Left ES

           

 < 10%

19 (33.9)

37 (40.7)

33 (43.4)

3 (27.3)

5 (29.4)

11 (47.8)

50 (46.7)a

19 (17.8)b

5 (4.7)c

38 (42.2)a

36 (15.6)b

10%-50%

37 (66.1)

54 (59.3)

43 (56.6)

8 (72.7)

12 (70.6)

12 (52.2)

57 (53.3)a

84 (78.5)b

82 (76.6)b

49 (54.4)a

174 (75.3)b

 > 50%

0 (0)

0 (0)

0 (0)

   

0 (0)a

4 (3.7)a

20 (18.7)b

3 (3.3)a

21 (9.1)b

  1. a−a, b−bNo difference between groups with the same letter, a−b−cA difference was found between groups with different letters