Results
DISEASE, DISEASES
In total, 22, 22, and 20 students were assigned to the CDSS, Google, and control groups, respectively. One resident did not consent to participate; thus, 13 residents were included. The median age of the three student groups was 23.6–24.1 years. The residents’ median age was 26.1 years. By gender, there were 45 men overall (70%), with 17 (77%), 11 (50%), 17 (85%), and eight (62%) men in the CDSS, Google, control, and residents’ groups, respectively (Table Participants’ characteristicsComparing the three medical student groups, the scores for first position in each group were normally distributed, with a mean of 12.0 ± 1.3, 11.9 ± 1.1, and 9.5 ± 1.7 for the CDSS, Google, and control groups, respectively (Table Mean scores of the three groups of medical studentsStatistical method: One-way analysis of varianceComparison of mean scores among the three medical student groupsStatistical method: Tukey’s honestly significant difference testThe scores of the top three lists in each group were normally distributed, and the means were 14.6 ± 1.0, 14.4 ± 0.9, and 10.6 ± 1.6 for the CDSS, Google, and control groups, respectively. There was a difference between the three medical student groups (Upon comparing the CDSS, Google, and residents’ groups, there was a significant difference in the first and first three positions in each group (Regarding the 10 common disease cases, the mean scores for first position in the differential diagnosis were 7.4 ± 0.7, 7.1 ± 0.7, and 8.2 ± 0.7 for the CDSS, Google, and residents’ groups, respectively. There was no significant difference in the mean scores (Comparison of mean scores for common, emergent, easy, and difficult disease casesStatistical method: †Kruskal–Wallis test, ‡One-way analysis of varianceFor the 10 emergent cases, the mean scores were significantly higher in the residents’ group than in the CDSS and Google groups (Evaluation of 10 emergent cases between the CDSS, Google, and residents’ groupsStatistical method: †Tukey’s honestly significant difference test, ‡Dunn–Bonferroni post hoc testFor the mean scores for the first three positions in the differential diagnosis, the mean score for the residents’ group was significantly higher than the scores for the CDSS and Google groups (both In the evaluation of easy case questions, the mean scores for the diseases placed in the first three positions in the CDSS, Google, and residents’ groups showed no significant difference (Evaluation of scores by difficulty level between the CDSS, Google, and residents’ groupsStatistical method: Dunn–Bonferroni post hoc testThe total time taken to answer all case questions was 5,253, 5,587, 3,652, and 3,956 s for the CDSS, Google, control, and residents’ groups, respectively. The CDSS and Google groups showed significantly longer answering times than the control group (