Testing variables | Grouping variable; study year (mean ± SD) | ANOVA test (p value) | |||
---|---|---|---|---|---|
1st year (n = 73) | 2nd year (n = 92) | 3rd year (n = 74) | 4th year (n = 55) | ||
Knowledge of NIs | 67.4 ± 14.7 | 67.8 ± 17.3 | 65.7 ± 17.7 | 67.6 ± 17.8 | 0.856 |
Knowledge of standard precautions | 84.9 ± 14.3 | 80.7 ± 16.9 | 84.6 ± 15.3 | 89.7 ± 6.8 | 0.004* |
Knowledge of hand hygiene | 66.8 ± 13.9 | 64.8 ± 17.3 | 67.7 ± 15.5 | 66.8 ± 14.1 | 0.657 |
Total knowledge | 75.6 ± 9.5 | 73.0 ± 11.2 | 75.4 ± 10.2 | 77.9 ± 7.5 | 0.035* |