Table 2.
Results of multilevel modelling of the difference in score between DCS and PDPAI
| Empty model | Women‐level model | Final model | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Fixed effects | |||||||||
| Woman level | |||||||||
| Intercept | −0.013 (0.062) | 0.141 (0.136) | 0.157 (0.178) | ||||||
| Age (centred to 55 years) | 0.004 (0.007) | 0.005 (0.007) | |||||||
| Number of years since the last menstrual period (centred to 6 years) | −0.011 (0.007) | −0.009 (0.007) | |||||||
| University degree | 0.152 (0.090) | 0.151 (0.087) | |||||||
| MenQoL vasomotor | 0.156 (0.104) | 0.160 (0.103) | |||||||
| Doctor does not give control over treatment | 0.282 (0.080)** | 0.286 (0.078)** | |||||||
| Myself and my doctor made the decision | −0.245 (0.095)* | −0.256 (0.096)** | |||||||
| Undecided about the best choice for me after counselling session with doctor | 0.275 (0.099)** | 0.257 (0.098)** | |||||||
| Doctor's undecided about the quality of the decision the woman made | −0.210 (0.097)* | −0.198 (0.098)* | |||||||
| Visit's length <30 min | −0.132 (0.092) | −0.186 (0.083)* | |||||||
| Visit's length >30 min | 0.009 (0.106) | −0.016 (0.097) | |||||||
| Doctor level | |||||||||
| Age (centred to 45 years) | 0.015 (0.006)* | ||||||||
| Certified by CFPC | 0.158 (0.129) | ||||||||
| Intervention decision aid | −0.116 (0.107) | ||||||||
| Usual prescribing pattern of HT | −0.194 (0.125) | ||||||||
| Random effects | |||||||||
| Variation | Est. | d.f. | χ 2 | Est. | d.f. | χ 2 | Est. | d.f. | χ 2 |
| Between doctors parameter variance | 0.088 | 39 | 92.6 | 0.084 | 39 | 94.2 | 0.075 | 35 | 79.0 |
| Within doctors parameter variance | 0.265 | 0.227 | 0.228 | ||||||
| Total | 0.354 | 0.311 | 0.304 | ||||||
| Reliability | 0.561 | 0.585 | 0.560 | ||||||
CFPC, College of Family Doctors of Canada; DCS, Decisional Conflict Scale; Est., estimate; HT, hormone therapy; MenQoL, measure quality of life at menopause; PDPAI, Provider Decision Process Assessment Instrument.
*P < 0.05; **P < 0.01.