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Table 1 Baseline characteristics of the cohort separated according to signs of depression

From: Brief screening questions for depression in chiropractic patients with low back pain: identification of potentially useful questions and test of their predictive capacity

 

Total cohort n = 925

No depression n = 843

Mild to severe depression n = 82

p-value*

Females

45%

43%

61%

<0.01

Age, mean (sd)

43 (12)

44 (12)

40 (12)

<0.01

Duration of LBP

   

<0.01

0-2 weeks

62%

65%

39%

 

2-4 weeks

13%

13%

21%

 

1-3 months

11%

11%

10%

 

>3 months

14%

12%

30%

 

>3 previous LBP episodes

49%

48%

57%

0.10

LBP intensity, median (IQR)

7 (5–8)

7 (5–8)

8 (6–8)

<0.01

Leg pain >0

56%

54%

72%

<0.01

RMDQ, mean (sd)

51 (24)

50 (24)

65 (20)

<0.01

  1. *p-value for test of no difference between ‘no depression’ and ‘mild to severe depression’ the duration of LBP categories for non-depressed sum to 101% due to rounding of figures.