We use cookies to enhance your experience on our website. By continuing to use our website, you are agreeing to our use of cookies. You can change your cookie settings at any time. Find out more A Comparison of Five Low Back Disability Questionnaires: Reliability and Responsiveness | Oxford Academic Skip to Main Content
Table 3.

Sample Characteristics of “Unchanged” and “Improved” Groups

Variable “Unchanged” (n=47) “Improved” (n=52) 
No. No. 
Age (y) 
 18–30 8.5 11.5 
 31–40 12.8 12 23.1 
 41–50 14 29.8 10 19.2 
 51–60 8.5 11 21.2 
 61–70 19.1 9.6 
 ≥71 10 21.3 15.4 
Sex 
 Male 17 36.2 14 26.9 
 Female 30 63.8 38 73.1 
Work situation 
 Employed 14 29.8 24 46.1 
 Unemployed 10.6 5.8 
 Not in the labor force 28 59.6 25 48.1 
Receiving compensation 
 Yes 4.3 13.5 
 No 45 95.7 45 86.5 
Duration of current episode 
 <1 wk 4.2 17.3 
 1–6 wk 10 21.3 22 42.2 
 6 wk to 6 mo 11 23.4 10 19.2 
 >6 mo 24 51.1 17.3 
 Missing   4.0 
Pain location 
 Back only 17.0 20 38.5 
 Buttock, groin, or thigh 20 42.6 20 38.5 
 Below knee 19 40.4 12 23.0 
Previous episodes 
 None 6.4 9.6 
 1–5 19.2 20 38.5 
 >5 22 46.8 21 40.4 
 Continuous pain 13 27.6 9.6 
 Missing   1.9 
Variable “Unchanged” (n=47) “Improved” (n=52) 
No. No. 
Age (y) 
 18–30 8.5 11.5 
 31–40 12.8 12 23.1 
 41–50 14 29.8 10 19.2 
 51–60 8.5 11 21.2 
 61–70 19.1 9.6 
 ≥71 10 21.3 15.4 
Sex 
 Male 17 36.2 14 26.9 
 Female 30 63.8 38 73.1 
Work situation 
 Employed 14 29.8 24 46.1 
 Unemployed 10.6 5.8 
 Not in the labor force 28 59.6 25 48.1 
Receiving compensation 
 Yes 4.3 13.5 
 No 45 95.7 45 86.5 
Duration of current episode 
 <1 wk 4.2 17.3 
 1–6 wk 10 21.3 22 42.2 
 6 wk to 6 mo 11 23.4 10 19.2 
 >6 mo 24 51.1 17.3 
 Missing   4.0 
Pain location 
 Back only 17.0 20 38.5 
 Buttock, groin, or thigh 20 42.6 20 38.5 
 Below knee 19 40.4 12 23.0 
Previous episodes 
 None 6.4 9.6 
 1–5 19.2 20 38.5 
 >5 22 46.8 21 40.4 
 Continuous pain 13 27.6 9.6 
 Missing   1.9 
Table 3.

Sample Characteristics of “Unchanged” and “Improved” Groups

Variable “Unchanged” (n=47) “Improved” (n=52) 
No. No. 
Age (y) 
 18–30 8.5 11.5 
 31–40 12.8 12 23.1 
 41–50 14 29.8 10 19.2 
 51–60 8.5 11 21.2 
 61–70 19.1 9.6 
 ≥71 10 21.3 15.4 
Sex 
 Male 17 36.2 14 26.9 
 Female 30 63.8 38 73.1 
Work situation 
 Employed 14 29.8 24 46.1 
 Unemployed 10.6 5.8 
 Not in the labor force 28 59.6 25 48.1 
Receiving compensation 
 Yes 4.3 13.5 
 No 45 95.7 45 86.5 
Duration of current episode 
 <1 wk 4.2 17.3 
 1–6 wk 10 21.3 22 42.2 
 6 wk to 6 mo 11 23.4 10 19.2 
 >6 mo 24 51.1 17.3 
 Missing   4.0 
Pain location 
 Back only 17.0 20 38.5 
 Buttock, groin, or thigh 20 42.6 20 38.5 
 Below knee 19 40.4 12 23.0 
Previous episodes 
 None 6.4 9.6 
 1–5 19.2 20 38.5 
 >5 22 46.8 21 40.4 
 Continuous pain 13 27.6 9.6 
 Missing   1.9 
Variable “Unchanged” (n=47) “Improved” (n=52) 
No. No. 
Age (y) 
 18–30 8.5 11.5 
 31–40 12.8 12 23.1 
 41–50 14 29.8 10 19.2 
 51–60 8.5 11 21.2 
 61–70 19.1 9.6 
 ≥71 10 21.3 15.4 
Sex 
 Male 17 36.2 14 26.9 
 Female 30 63.8 38 73.1 
Work situation 
 Employed 14 29.8 24 46.1 
 Unemployed 10.6 5.8 
 Not in the labor force 28 59.6 25 48.1 
Receiving compensation 
 Yes 4.3 13.5 
 No 45 95.7 45 86.5 
Duration of current episode 
 <1 wk 4.2 17.3 
 1–6 wk 10 21.3 22 42.2 
 6 wk to 6 mo 11 23.4 10 19.2 
 >6 mo 24 51.1 17.3 
 Missing   4.0 
Pain location 
 Back only 17.0 20 38.5 
 Buttock, groin, or thigh 20 42.6 20 38.5 
 Below knee 19 40.4 12 23.0 
Previous episodes 
 None 6.4 9.6 
 1–5 19.2 20 38.5 
 >5 22 46.8 21 40.4 
 Continuous pain 13 27.6 9.6 
 Missing   1.9 
Close
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close

This PDF is available to Subscribers Only

View Article Abstract & Purchase Options

For full access to this pdf, sign in to an existing account, or purchase an annual subscription.

Close