Table 4

Multivariate regression analysis of factors associated with Knowledge Test %Correct and Confidence Scale Score, and logistic regression analysis or factors associated with the Communications Practices Scale Score.


Variables in the Final Model for Knowledge Test (%Correct) N = 1268(Score range 0–100)

Variables in the Final Model for Confidence ScaleN = 1201(Scale Range 19–95)

Variables in the Final Model for Communications Practices ScaleN = 852 *(Scale Range 0–10)



Coefficient(95% CI)
P value
Coefficient(95% CI)
P value
Odds Ratio(95% CI)
P value

Constant
58.4 (56.6, 60.2)
<.001
60.0 (57.8, 62.2)
<.001
Type of Health Professional‡
.013
Professional Group [Students are reference group]






     Physician/PA (yes = 1, no = 0)
6.1 (4.8, 7.5)
<.001
3.6 (1.6, 5.7)
.001
2.6 (1.3, 5.1)
.007
     Nurse (yes = 1, no = 0)

NS

NS

NS
     Nutritionist: (yes = 1, no = 0)
3.8 (2.1, 5.5)
<.001
5.3 (2.4, 8.1)
<.001
3.2 (1.5, 4.4)
.003
     Pharmacist (yes = 1, no = 0)
6.6 (4.0, 9.1)
<.001











Had seen patients in past 30 days (yes = 1, no = 0)
2.8 (1.6, 3.9)
<.001


[subjects selected on this basis]

Enrollment period (spring = 1, fall = 0)
-2.7 (-3.9, -1.4)
<.001
-18.3 (-20.4, -16.3)
<.001


Gender (Female = 1, Male = 0)
1.5 (0.24, 2.8)
.002




Training Status (Faculty/In practice = 1, In Training = 0)






Number of HDS Used in a Typical Week
0.46 (0.38, 0.54)
<.001
0.43 (0.29, 0.58)
<.001
1.11 (1.08, 1.14)
<.001
Age [age ≤ 30; represented by 0 in all other categories]





.015
     Age 31–40 years (yes = 1, no = 0)
3.8 (2.3, 5.3)
<.001


2.4 (1.3, 4.4)
.006
     Age 41–50 years (yes = 1, no = 0)
2.4 (1.1, 3.7)
<.001
4.8 (2.6, 5.7)
<.001
1.9 (1.0, 3.4)
.048
     Age >50 years (yes = 1, no = 0)


2.4 (0.15, 4.7)
.037









R-square for the final model
.251

.267

.155


* This analysis was performed for enrollees who had seen patients in the past 30 days.

† Models were determined using backward conditional multiple regression, with P≤ .05 required for variable retention.

Kemper et al. BMC Complementary and Alternative Medicine 2006 6:15   doi:10.1186/1472-6882-6-15