Kaizen-Internal Medicine use stratified by postgraduate year (PGY1–3) of training and round of the competition (1–3)
| Total | PGY1 | PGY2 | PGY3 | p Value* | |
|---|---|---|---|---|---|
| Round 1 | Median (IQR) | Median (IQR) | Median (IQR) | Median (IQR) | |
| 107 questions | (N=92) | (N=36) | (N=33) | (N=23) | |
| Questions answered† | 97.0 (42.0 to 107.0) | 97.5 (54.5 to 107.0) | 97.0 (23.0 to 107.0) | 87.0 (57.0 to 107.0) | 0.443 |
| Per cent correct | 71.8 (61.7 to 78.9) | 70.2 (58.7 to 76.7) | 67.3 (61.0 to 75.6) | 78.7 (73.8 to 86.0) | 0.001 |
| Days to answer | 4.3 (1.5 to 8.3) | 3.1 (1.1 to 8.2) | 4.0 (1.7 to 6.1) | 6.4 (3.1 to 12.2) | 0.810 |
| Play duration‡ | 42.0 (19.5 to 50.0) | 43.5 (26.0 to 50.0) | 39.0 (8.0 to 50.0) | 41.0 (30.0 to 51.0) | 0.210 |
| Days between sessions‡ | 3.1 (1.7 to 7.0) | 2.2 (1.5 to 3.8) | 4.0 (2.5 to 7.0) | 6.0 (3.0 to 10.0) | <0.001 |
| Questions per day† | 7.2 (4.0 to 11.9) | 4.6 (3.2 to 8.0) | 8.0 (5.4 to 13.4) | 8.8 (3.8 to 13.7) | 0.083 |
| ≥1 question answered‡ | 9.0 (4.0 to 20.5) | 15.0 (6.5 to 26.5) | 7.0 (3.0 to 15.0) | 8.0 (4.0 to 12.0) | 0.080 |
| Badges earned† | 2.0 (1.0 to 3.0) | 2.0 (1.5 to 4.0) | 2.0 (0.0 to 3.0) | 3.0 (2.0 to 4.0) | 0.105 |
| Devices used† | 2.0 (1.0 to 3.0) | 2 .0 (1.0 to 3.0) | 2.0 (1.0 to 3.0) | 2.0 (1.0 to 3.0) | 0.811 |
| Round 2§ | Median (IQR) | Median (IQR) | Median (IQR) | Median (IQR) | |
| 84 questions | (N=90) | (N=42) | (N=32) | (N=16) | |
| Questions answered† | 65.5 (36.0 to 84.0) | 57.0 (36.0 to 84.0) | 69.0 (29.5 to 84.0) | 83.0 (54.0 to 84.0) | 0.482 |
| Per cent correct | 66.7 (57.7 to 73.8) | 68.6 (65.0 to 74.2) | 63.1 (54.4 to 66.7) | 66.1 (58.9 to 82.1) | 0.025 |
| Days to answer | 5.8 (1.7 to 11.4) | 5.9 (1.7 to 13.5) | 6.1 (1.8 to 14.6) | 3.8 (1.0 to 8.1) | 0.429 |
| Play duration‡ | 34.0 (18.0 to 40.0) | 35.0 (18.0 to 40.0) | 32.0 (15.0 to 39.5) | 33.0 (23.5 to 40.5) | 0.752 |
| Days between sessions‡ | 3.7 (1.8 to 7.0) | 4.4 (2.2 to 7.8) | 3.7 (1.7 to 7.1) | 3.0 (1.8 to 4.4) | 0.281 |
| Questions per session* | 6.5 (3.7 to 10.5) | 7.6 (4.0 to 11.3) | 6.1 (3.3 to 9.8) | 5.6 (3.7 to 10.1) | 0.564 |
| ≥1 question answered‡ | 8.5 (3.0 to 18.0) | 7.5 (3.0 to 18.0) | 8.0 (2.5 to 17.0) | 10.5 (5.5 to 20.0) | 0.919 |
| Badges earned† | 2.0 (1.0 to 2.0) | 1.0 (1.0 to 2.0) | 1.0 (0.0 to 2.0) | 2.0 (1.5 to 3.0) | 0.124 |
| Devices used† | 2.0 (1.0 to 2.0) | 2.0 (1.0 to 2.0) | 1.5 (1.0 to 3.0) | 1.5 (1.0 to 2.5) | 0.873 |
| Round 3 | Median (IQR) | Median (IQR) | Median (IQR) | Median (IQR) | |
| 117 questions | (N=55) | (N=25) | (N=22) | (N=8) | |
| Questions answered† | 108.0 (31.0 to 117.0) | 117.0 (72.0 to 117.0) | 58.0 (8.0 to 117.0) | 73.0 (38.0 to 114.0) | 0.049 |
| Per cent correct | 60.3 (50.4 to 71.4) | 62.9 (54.2 to 72.7) | 55.0 (50.0 to 71.4) | 62.3 (57.0 to 65.6) | 0.471 |
| Days to answer | 5.0 (1.2 to 17.2) | 4.5 (1.1 to 17.2) | 7.7 (2.3 to 18.9) | 2.3 (0.5 to 10.2) | 0.335 |
| Play duration‡ | 30.0 (5.0 to 38.0) | 34.0 (18.0 to 37.0) | 16.0 (4.0 to 33.0) | 35.5 (3.5 to 40.0) | 0.187 |
| Days between sessions‡ | 2.6 (1.5 to 4.7) | 2.4 (1.6 to 4.4) | 3.3 (1.6 to 5.7) | 2.2 (1.3 to 3.8) | 0.589 |
| Questions per day† | 7.3 (4.4 to 13.3) | 10.3 (5.1 to 14.6) | 6.7 (3.5 to 9.8) | 7.5 (4.5 to 14.7) | 0.451 |
| ≥1 question answered‡ | 6.0 (2.0 to 16.0) | 8.0 (3.0 to 17.0) | 4.0 (2.0 to 13.0) | 7.0 (2.5 to 20.5) | 0.544 |
| Badges earned† | 2.0 (0.0 to 4.0) | 3.0 (2.0 to 4.0) | 1.0 (0.0 to 2.0) | 1.5 (0.5 to 2.5) | 0.037 |
| Devices used† | 1.0 (1.0 to 2.0) | 1.0 (1.0 to 2.0) | 1.0 (1.0 to 2.0) | 1.0 (1.0 to 1.5) | 0.402 |
*Type 3 p values from separate Poisson regression models modelling the count by trainee level.
†Per participant.
‡Unit is days.
§A total of 26 new players were added in round 2.