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Table 1 Demographic characteristics of participants, MRI findings, and prevalence of surgery following MRI

From: Predictors of long-term pain and disability in patients with low back pain investigated by magnetic resonance imaging: A longitudinal study

   

Surgery following MRI

Characteristics/abnormalities

No. (%) of participants

Before baseline questionnaire

After baseline questionnaire

Any time following MRI

   

n

%

n

%

n

%

Sex

        

   Male

111

(46)

21

19

21

19

38

34

   Female

129

(54)

24

19

20

16

36

28

Age at MRI (years)

        

   20-39

80

(33)

12

15

9

11

21

26

   40-49

71

(30)

21

30

18

25

31

44

   50-64

89

(37)

12

14

14

16

22

25

Disc degeneration

        

   Absent

130

(54)

26

21

19

15

39

30

   Present

110

(46)

19

18

22

20

35

32

Disc herniation

        

   Absent

79

(33)

6

8

7

9

12

15

   Present

161

(67)

39

25

34

21

62

39

Nerve root displacement/compression

        

   Absent

131

(55)

10

8

16

12

24

18

   Present

109

(45)

35

33

25

23

50

46

High intensity zone

        

   Absent

90

(38)

20

23

15

17

30

33

   Present

150

(62)

25

17

26

17

44

29

Number of MRI abnormalities

        

   0

32

(13)

1

3

2

6

3

9

   1

35

(15)

5

16

4

11

7

20

   2

67

(28)

15

22

14

21

26

39

   3

63

(26)

13

21

9

14

20

32

   4

43

(18)

11

26

12

28

18

42

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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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