| Covariates* | Estimate ± SE, d | t | p value |
|---|---|---|---|
| (Intercept) | 334.7 ± 30.3 | 64.32 | 0.0000 |
| Substance use | 139.4 ± 73.8 | 2.27 | 0.02‡ |
| Age | –0.034 ± 0.54 | –0.08 | 0.9 |
| BMI, kg/m2 | |||
| 40–49 | –11.93 ± 19.40 | –0.60 | 0.5 |
| 50–59 | –2.10 ± 21.7 | –0.10 | 0.9 |
| 60+ | –1.64 ± 26.48 | –0.06 | 0.9 |
| Male | 22.23 ± 15.69 | 1.47 | 0.1 |
| Log, distance | 3.668 ± 4.142 | 0.89 | 0.4 |
| Operational period 2† | 75.25 ± 16.73 | 5.44 | < 0.001‡ |
Note: BMI = body mass index. *Baseline covariate values: female, no substance use, 19 years of age, BMI between 35 and 39 kg/m2, lived within a few kilometres of the bariatric centre, and referred or attended orientation in Period 1. †Binary variable indicating if a patient attended orientation in Period 2. ‡p < 0.05 was considered statistically significant.