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Table 1 Demographic characteristics of the 140 participants with and without lumbar instability

From: A diagnostic tool for people with lumbar instability: a criterion-related validity study

 

Without lumbar instability (n = 122)

Lumbar instability (n = 18)

P- value

n(%)

Mean ± SD

n(%)

Mean ± SD

Age (years)

 

35.80 ± 12.35

 

37.00 ± 12.32

0.70

Sex

 • Male

49(40.16)

 

5(27.78)

 

0.31

 • Female

73(59.84)

 

13(72.22)

  

BMI

 

22.29 ± 2.37

 

21.97 ± 3.12

0.61

RMDQ score

 

6.08 ± 4.90

 

8.67 ± 5.41

0.04*

Pain duration (months)

 

25.71 ± 25.25

 

38.33 ± 48.65

0.09

Pain episode

 • First

63(51.64)

 

13(72.22)

 

0.10

 • Recurrent

59(48.36)

 

5(27.78)

  

Pain radiation

 • Yes

64(52.46)

 

11(61.11)

 

0.49

 • No

58(47.54)

 

7(38.89)

  

Pain score (NRS)

 

4.52 ± 1.46

 

4.94 ± 1.35

0.24

  1. Abbreviations: SD Standard deviation, BMI Body Mass Index, RMDQ Roland-Morris Disability Questionnaire, NRS Numerical Rating Scale, n number
  2. *P-value < 0.05