Table 3.
Overall and round-specific retention of knowledge among participants who answered the questions initially (rounds 1 or 2) and on retest (round 3)
| Number of players (answer pairs) | Initial per cent correctMean (SD) | Subsequent per cent correctMean (SD) | Mean change (95% CI) | p Value* | |
|---|---|---|---|---|---|
| Overall | 50 (1046) | 40.5 (20.1) | 52.3 (23.1) | 11.9 (6.7 to 17.0) | <0.001 |
| PGY1 | 25 (567) | 49.6 (18.5) | 59 (21.6) | 9.5 (2.3 to 16.7) | 0.012 |
| PGY2 | 18 (309) | 26 (14.7) | 41.8 (22.4) | 15.8 (6.4 to 25.2) | 0.002 |
| PGY3 | 7 (170) | 45.2 (17.7) | 55.4 (23.0) | 10.2 (−7.0 to 27.3) | 0.197 |
| Round 1; 20 August 2012–13 October 2012 | |||||
| Overall | 39 (546) | 37.8 (18.1) | 47.9 (21.9) | 10.2 (4.5 to 15.8) | <0.001 |
| PGY1 | 18 (271) | 44.1 (15.3) | 50 (20.2) | 5.9 (−1.8 to 13.6) | 0.123 |
| PGY2 | 14 (165) | 25.8 (16.3) | 40.9 (23.4) | 15.1 (4.1 to 26.1) | 0.011 |
| PGY3 | 7 (110) | 45.5 (17.8) | 56.7 (21.6) | 11.2 (−6.4 to 28.8) | 0.170 |
| Round 2; 14 January 2013–26 February 2013 | |||||
| Overall | 32 (500) | 46.2 (19.5) | 63.6 (22.0) | 17.4 (11.1 to 23.7) | <0.001 |
| PGY1 | 19 (296) | 52.2 (18.7) | 69.3 (20.3) | 17.1 (7.4 to 26.8) | 0.002 |
| PGY2 | 9 (144) | 32.9 (14.8) | 52.8 (20.4) | 19.9 (8.4 to 31.3) | 0.004 |
| PGY3 | 4 (60) | 47.9 (22.4) | 61.3 (29.6) | 13.4 (−1.3 to 28.0) | 0.062 |
*Paired t test.
PGY, postgraduate year.