Table 3.
Multiple regression analyses of baseline and difference in scores on continuous outcome measures evaluating success of educational intervention at seven month follow up. Models include gender, age group, language other than English, type of practice, average hours worked per week, and college exams taken. Difference scores are also adjusted for baseline score and training obtained from elsewhere over 7 month period. Robust standard errors allowed for cluster randomisation. All scores out of 100
| Scores | No* | Baseline
|
Difference at 7 month follow up
|
P value | ||||
|---|---|---|---|---|---|---|---|---|
| Mean (95% CI) | Mean (95% CI) | Effect size | ||||||
| Skills | ||||||||
| Standardised patients' rapport and satisfaction: | ||||||||
| Control | 50 | 67.9 (61.4 to 74.5) | −0.5 (−6.1 to 5.0) | −0.02 | 0.12 | |||
| Intervention | 54 | 67.9 (64.9 to 70.9) | 6.0 (2.6 to 9.5) | 0.54 | ||||
| Standardised patients' confidentiality: | ||||||||
| Control | 50 | 35.2 (29.3 to 41.1) | 4.0 (−10.3 to 18.3) | 0.19 | <0.01 | |||
| Intervention | 54 | 42.2 (31.0 to 53.4) | 53.5 (49.3 to 57.8) | 1.28 | ||||
| Observer competence: | ||||||||
| Control | 50 | 51.8 (45.9 to 57.6) | 2.6 (−3.0 to 8.1) | 0.12 | 0.01 | |||
| Intervention | 54 | 48.8 (46.2 to 51.4) | 15.3 (11.1 to 19.5) | 1.55 | ||||
| Observer risk assessment: | ||||||||
| Control | 50 | 53.3 (49.4 to 57.2) | 0.5 (−3.0 to 4.1) | 0.04 | 0.03 | |||
| Intervention | 53 | 50.7 (44.2 to 57.2) | 9.9 (5.8 to 14.0) | 0.41 | ||||
| Self perceived competency | ||||||||
| Comfort (process): | ||||||||
| Control | 49 | 71.1 (66.4 to 75.8) | 0.2 (−3.5 to 4.0) | 0.01 | 0.03 | |||
| Intervention | 54 | 71.8 (69.7 to 73.9) | 7.1 (4.7 to 9.4) | 0.89 | ||||
| Comfort (substantive): | ||||||||
| Control | 50 | 58.1 (52.3 to 63.9) | 0.3 (−5.1 to 5.6) | 0.01 | <0.01 | |||
| Intervention | 54 | 60.5 (56.1 to 64.8) | 15.8 (13.8 to 17.8) | 0.97 | ||||
| Knowledge and skill (process): | ||||||||
| Control | 50 | 65.9 (60.4 to 71.5) | 0.7 (−4.0 to 5.3) | 0.03 | <0.01 | |||
| Intervention | 53 | 66.3 (63.6 to 69.1) | 15.6 (12.1 to 19.2) | 1.54 | ||||
| Knowledge and skill (substantive): | ||||||||
| Control | 50 | 52.1 (44.5 to 59.7) | 2.8 (−2.0 to 7.6) | 0.10 | <0.01 | |||
| Intervention | 54 | 57.5 (53.8 to 61.2) | 20.6 (18.2 to 22.9) | 1.50 | ||||
| Doctors' self rating on taped consultation | ||||||||
| Control | 49 | 56.6 (52.7 to 60.5) | 3.1 (0.6 to 5.6) | 0.22 | <0.01 | |||
| Intervention | 54 | 56.9 (55.7 to 58.1) | 17.8 (15.9 to 19.7) | 4.01 | ||||
| Knowledge test | ||||||||
| Control | 49 | 33.3 (31.6 to 35.0) | 3.1 (0.6 to 5.6) | 0.51 | <0.01 | |||
| Intervention | 54 | 32.8 (31.6 to 34.0) | 14.6 (13.0 to 16.2) | 3.31 | ||||
*
Variations due to missing values in rating forms of some participants.