Table 4 Results of the final multiple logistic regression model on dependent variable dizziness at 12 months, using backward stepwise procedure- Nagelkerke pseudo R² was 0.5 in the final model

Predictors, measured as change score at 12 months

Constant

−4.356

.013

.001

Neck Disability Index (0–100%)

−.056

.946

.910–.983

.005

NME, flexion (seconds)

−.013

.987

.972–1.002

.085

Covariates at baseline

Female

−.375

.687

.240–1.965

.687

Age

.050

1.051

1.009–1.096

.016

WAD-level 3

.550

1.734

.707–4.251

.229

Neck-specific exercise

.262

1.299

.461–3.663

.620

Dizziness

2.255

9.532

3.133–29.001

<.001

Neck Disability Index (0–100%)

.058

1.059

1.014–1.107

.010

NME, flexion (seconds)

−.003

.997

.984–1.009

.612