Table 2. Comparison of mean knowledge scores and overall mean confidence scores between the control group and the app group
Variable                               Control Group                        App Group Mean change-in-score for app group compared to control
Baseline (n=30) Follow-up (n=26) p value Baseline (n=32) Follow-up (n=27) p value
Knowledge scores (Mean, Standard Deviation) 7.1 (1.7) 7.5 (2.0) p=0.2a 6.2 (2.1) 8.1 (2.2) p<0.01b   Unadjusted 1.5 (95% CI: 0.46, 2.48) p=0.006
                   Adjusted* 1.1 (95% CI: 0.10, 2.1) p=0.04
Confidence in prescribing     p<0.01a     p<0.01b               Unadjusted 0.18 (p=0.34)
                                    Adjusted** -0.03 (p=0.86)
Very confident (5) 0% 4%   3% 0%        
Confident (4) 13% 15.0%   9% 11%        
Neutral (3) 60% 62.0%   31% 56%        
Not very confident (2) 27% 20.0%   34% 30%        
Not at all confident (1) 0% 0.0%   22% 4%        

aComparing baseline to follow-up within the control group

bComparing baseline to follow-up within the app group

*adjusted multivariable linear regression analysis: comparing the change-in scores adjusted for baseline knowledge and sex

**adjusted multivariable linear regression analysis: comparing the change-in scores adjusted for baseline confidence and sex

Int J Med Educ. 2017; 8:416-420; doi: 10.5116/ijme.5a11.8422