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Table 1 Characteristics of and dietary supplement use among 569 health professionals at baseline (winter) and following course (spring)

From: Changes in use of herbs and dietary supplements (HDS) among clinicians enrolled in an online curriculum

Characteristic N (%)* No. Products Used at Baseline (median) P Change in No. Products Used at Baseline (median) P
Age, yrs (mean ± SD) 41.8 ± 12.9 6.2 ± 6.2 -- -0.44 ± 4.2 .006‡
Age    < .001§   .09§
Age < 30 yrs 163 (29) 4.5 ± 5.1 (3)   -0.94 ± 4.0 (0)  
Age 31–40 yrs 78 (14) 5.0 ± 5.0 (3)   -0.04 ± 5.2 (0)  
Age 41–50 yrs 167 (29) 7.1 ± 7.0 (5)   -0.44 ± 4.0 (0)  
Age > 50 yrs 161 (28) 7.4 ± 6.3 (6)   -0.14 ± 3.9 (0)  
Gender    .003†   .70†
Male 141 (25) 5.1 ± 5.7 (3)   -0.31 ± 3.6 (0)  
Female 428 (75) 6.5 ± 6.3 (5)   -0.49 ± 4.3 (0)  
Race/Ethnicity    .27†   .39†
Caucasian 480 (84) 6.3 ± 6.3 (4)   -0.40 ± 4.3 (0)  
Other 89 (16) 5.4 ± 5.2 (5)   -0.69 ± 3.5 (0)  
Profession    < .001§   .30§
Physician/PA 170 (30) 6.2 ± 5.7 (5)   -0.31 ± 4.0 (0)  
Dietician 65 (11) 4.7 ± 5.4 (3)   -0.72 ± 4.2 (0)  
Nurse 153 (27) 8.0 ± 7.0 (6)   -0.18 ± 3.8 (0)  
Pharmacist 19 (3) 5.3 ± 5.6 (3)   +0.58 ± 7.0 (0)  
Student 162 (28) 5.0 ± 5.7 (3)   -0.84 ± 4.2 (-.5)  
Practice status    < .001†   .024†
Faculty/In practice 349 (61) 6.9 ± 6.5 (5)   -0.26 ± 4.2 (0)  
Trainee 220 (39) 4.9 ± 5.4 (3)   -0.75 ± 4.0 (0)  
Saw Patients in 30 days prior to questionnaire    .14†   .12†
Yes 425 (75) 6.3 ± 6.0 (5)   -0.36 ± 4.2 (0)  
No 144 (25) 5.8 ± 6.5 (3)   -0.69 ± 4.0 (0)  
Knowledge Scores (%Correct) N = 561A Correlation coefficient**   Correlation coefficient**  
Baseline 66.2 ± 10.3 .30 < .001 -.03 .45
Outcome 90.0 ± 8.7 .03 .51 .04 .39
Change 23.8 ± 12.5 -.20 < .001 .03 .47
Confidence Scale Score (possible range, 19–95) N = 525B     
Baseline 49.0 ± 16.7 .38 < .001 -.06 .16
Outcome 70.9 ± 10.5 .25 < .001 .02 .58
Change 21.9 ± 14.1 -.27 < .001 .07 .13
Communications Practices Scale Score (possible range, 0–10) N = 386C     
Baseline 2.43 ± 2.05 .26 < .001 -.03 .52
Outcome 2.67 ± 2.30 .22 < .001 -.01 .82
Change 0.24 ± 1.79 .08 .14 -.04 .40
  1. A For knowledge assessments, 561 of the enrollees completed baseline and outcomes assessments. P < .001 for change (Wilcoxon signed ranks test). Mean age was 41.8 yrs.
  2. B For confidence assessments, 525 of the enrollees completed baseline and outcomes assessments. P < .001 for change (Wilcoxon signed ranks test). Mean age was 41.7 yrs.
  3. C For communications practices, 386 of the enrollees completed baseline and outcomes assessments. Enrollees had to have seen patients in the 30 days prior to complete this section of the assessment. P = .005 for change (Wilcoxon signed ranks test). Mean age was 43.9 yrs.
  4. *Unless specified otherwise.
  5. † Mann-Whitney test.
  6. ‡ Wilcoxon signed rank test.
  7. §Kruskal-Wallis test.
  8. ** Spearman rank correlation coefficient.