Random effects probit model results
| Attributes | Coefficient | 95% CI |
|---|---|---|
| No of observations = 959; no of groups = 129; observations per group (min/average/max) = 8/8/8; χ2=117.77 (p<0.001); *significant at 5% level. | ||
| TIME* | 0.1370 | 0.0509 to 0.2230 |
| RELIEVE* | 0.3973 | 0.2758 to 0.5188 |
| EFFECT | −0.0015 | −0.0155 to 0.0126 |
| TREAT* | 0.1471 | 0.0371 to 0.2571 |
| WHOLE* | 0.2289 | 0.1010 to 0.3569 |
| TRAVEL* | −0.0116 | −0.0166 to 0.0067 |