Table 2.
TPB scores at 0 and 12 months and their relation with the intervention group
| Intervention | Number | Mean [SD] | Model 1a | Model 2a | Model 3a | Model 4a | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 month (baseline) |
12 months (endpoint) |
Estimation | P-value | Estimation | P-value | Estimation | P-value | Estimation | P-value | |||
| ITT (LOCF) | Self-monitoring | 91 | 180.9 [38.6] | 192.3 [30.1] | 1.7 | 0.776 | 1.7 | 0.738 | 2.4 | 0.650 | 2.4 | 0.650 |
| Supervisory visit | 105 | 182.5 [37.7] | 192.3 [28.4] | |||||||||
| PPS (CDS) | Self-monitoring | 66 | 183.2 [39.6] | 193.2 [29.1] | 3.4 | 0.628 | 3.4 | 0.559 | 3.7 | 0.539 | 3.7 | 0.538 |
| Supervisory visit | 84 | 186.3 [35.1] | 192.9 [24.4] | |||||||||
Model 1: crude mixed-effects model
Model 2: mixed-effects model adjusted for baseline TPB
Model 3: mixed-effects model adjusted for baseline TPB, gender, age, baseline skill and knowledge
Model 4: mixed-effects model adjusted for baseline, gender, age, baseline skill and knowledge, ethnicity, position, job title, and years of experience
SD Standard deviation, ITT Intention to treat, LOCF Last observation carried forward, PPS Per-protocol set, CDS Complete data set
aTest for the effect of intervention over time