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Table 1 FO and FT for chronic LBP at three levels using univariate analysis

From: Facet joint parameters which may act as risk factors for chronic low back pain

Variable

Non-LBP Group

(n = 100)

LBP Group

(n =442)

P

Age (ys)

35.88±7.45

35.55±7.89

0.421

Gender (male:female)

47:53

190:252

0.465

BMI

22.63(17.11~32.69)

23.43(17.11~33.59)

0.008

Current smoking

21(21.00%)

100(22.62%)

0.725

Alcohol

5(5.00%)

31(7.01%)

0.465

Diabetes mellitus

11(11.00%)

56(12.67%)

0.647

Occupational lifting

31(31.00%)

143(32.35%)

0.794

Occupational driving

33(33.00%)

144(32.58%)

0.935

Sports activity

29(29.00%)

128(28.96%)

0.994

L3-L4

   

 FO(°)

33.83(13.50~58.60)

36.83(4.60~60.30)

0.046

 FT(°)

2.85(0.00~35.80)

4.45(0.00~26.00)

<.001

L4-L5

   

 FO(°)

43.90(16.50~65.70)

45.40(5.50~91.35)

0.229

 FT(°)

2.70 (0.00~17.30)

4.70(0.00~47.10)

<001

L5-S1

   

 FO(°)

49.23(27.00~78.35)

52.50(18.20~86.60)

0.007

 FT(°)

3.40(0.10~27.30)

5.60(0.00~53.40)

<.001

  1. LBP: low back pain; BMI: body mass index; FO: facet orientation; FT: facet tropism