Table 7

Predictor variables were tested against outcome at the 4th visit. The predictor variables were: overweight or obese, leg pain, and not better at 2nd visit.

Number of predictor variables present in the patient
OR (95% CI) in relation to not being definitely improved at the 4th visit*

0 (index)
1

1
1.8 (1.1–2.9)

2
3.4 (2.1–5.6)

3
10.2 (5.8–18.1)

* The Hosmer-Lemeshow test for goodness-of-fit revealed that this model had a perfect (100%) fit.

Malmqvist et al. Chiropractic & Osteopathy 2008 16:13   doi:10.1186/1746-1340-16-13