Table 3.
Multivariate linear regression analysis of the final medical history-taking test scores (n=80).
| Model and variables | Ba (95% CI) | SE | β b | t test (df) | P value | VIFc value | |||
| Model 1 (without adjusting for covariates)d | |||||||||
|
|
Constant | 83.738 (81.318 to 86.157) | 1.215 | N/Ae | 68.898 (78) | <.001 | N/A | ||
|
|
Group A (reference group=group B) | 3.975 (0.553 to 7.397) | 1.719 | 0.253 | 2.313 (78) | .02 | N/A | ||
| Model 2 (adjusted for covariates)f | |||||||||
|
|
Constant | 84.919 (77.770-92.068) | 3.585 | N/A | 23.686 (71) | <.001 | N/A | ||
|
|
Group A (reference group=group B) | 3.924 (1.904 to 5.944) | 1.013 | 0.250 | 3.873 (71) | <.001 | 1.007 | ||
|
|
Baseline test scores (points) | 0.012 (–0.089 to 0.114) | 0.051 | 0.016 | 0.245 (71) | .81 | 1.039 | ||
|
|
Female (reference group=male) | 3.481 (1.200 to 5.761) | 1.144 | 0.208 | 3.043 (71) | .003 | 1.065 | ||
|
|
Academic major ( reference g roup= stomatology ) | 1.040 | |||||||
|
|
|
Clinical medicine | 2.911 (0.233 to 5.589) | 1.343 | 0.163 | 2.168 (71) | .03 |
|
|
|
|
|
Anesthesiology | –0.528 (–5.196 to 4.140) | 2.341 | –0.016 | –0.226 (71) | .82 |
|
|
|
|
Final test case (reference group = pneumonia ) | 1.041 | |||||||
|
|
|
CHDg | –15.854 (–18.765 to –12.942) | 1.460 | –0.860 | –10.856 (71) | <.001 |
|
|
|
|
|
Hyperthyroidism | –4.289 (–7.174 to –1.405) | 1.447 | –0.233 | –2.965 (71) | .004 |
|
|
|
|
|
UTIh | –6.745 (–9.552 to –3.938) | 1.408 | –0.366 | –4.792 (71) | <.001 |
|
|
aUnstandardized coefficient.
bStandardized coefficient.
cVIF: variance inflation factor.
dModel parameters: R2=0.064; Radj2=0.052; F1, 78=5.348; P=.02.
eN/A: not applicable.
fModel parameters: R2=0.708; Radj2=0.675; F8,71=21.552; P<.001.
gCHD: coronary heart disease.
hUTI: urinary tract infection.