Table 5 Analysis of time, in weeks, from study start to the first occurrence of two consecutive weeks with missing SMS for the Weekly studies. A Cox proportional hazard model was used and the outcome parameter was the Hazard Ratio (HR) and HR = 1.0 indicated no effect
From: Frequently repeated measurements -our experience of collecting data with SMS
Variables in the model | Hazard Ratio, HR (95% CI) p-value |
|---|---|
Age ≥ 50 years (reference age < 50 years) | 0.80 (0.55–1.15) |
Sex (reference males) | p = 0.234 |
1.06 (0.74–1.52) | |
Pain 6–7 (reference pain 0–5) | p = 0.747 |
1.00 (0.77–1.99) | |
Pain 8–10 (reference pain 0–5) | p = 0.981 |
1.24 (0.77–1.99) | |
Study Work-Up (reference MC Chiro) | p = 0.377 |
4.65 (2.67–8.09) | |
Study PARA (reference MC Chiro) | p < 0.001 |
6.17 (3.38–11.28) | |
p < 0.001 |