Table 3 Odds ratios for scoring in the medium or high-risk STarT Back subgroups based on select explanatory variables^a

 Average pain in past 2 weeks

1.8^c

(1.4, 2.3)

 Most severe pain in past 2 weeks

1.3^c

(1.0, 1.6)

 Low back pain^b

–

–

 Neck pain

1.0

(0.5, 2.1)

 Mid-back

0.2^c

(0.1, 0.7)

  > 1 area of complaint

0.4

(0.1, 1.1)

 Other

0.3

(0.1, 1.3)

 Full-time^b

–

–

 Part-time

0.2^c

(0.1, 0.5)

 Full-time student

0.3^c

(0.1, 0.7)

 Unemployed

0.0^c

(0.1, 0.7)