Table 1.
Percentage missing data in the FREE trial overall
| Follow-up (time after randomisation) | |||||||
|---|---|---|---|---|---|---|---|
| Measure | Baseline | 1 month | 3 months | 6 months | 12 months | 24 months | Mean |
| SF-36 PCS | 2.7 | 13.0 | 19.7 | 21.0 | 25.0 | 27.3 | 18.1 |
| EQ-5D | 2.3 | 13.0 | 19.3 | 20.7 | 24.7 | 25.3 | 17.6 |
| RMD score | 1.7 | 15.7 | 25.0 | 26.7 | 32.0 | 36.0 | 22.8 |
| Back pain | 0.7 | 12.0 | 18.0 | 19.7 | 24.7 | 24.3 | 16.6 |
| Restricted activity | 4.0 | 18.0 | 22.3 | 22.0 | 26.0 | 28.3 | 20.1 |
| Days in bed | 3.3 | 15.3 | 20.7 | 20.7 | 24.7 | 27.0 | 18.6 |
Values shown are percentages
EQ-5D, EuroQol 5-dimension; RMD, Roland-Morris Disability; SF-36 PCS, short form-36 physical component summary