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Comparison between nurses’ level of knowledge and performance about blood and blood transfusion before and after the educational intervention
| Variable | Mean + SD | Min | max | P-value | |
|---|---|---|---|---|---|
| Knowledge score | Before intervention | 7.66 + 2.18 | 4 | 12 | 0.001 |
| After intervention | 11.56 + 1.84 | 7 | 14 | ||
| Performance score | Before intervention | 34.92 + 2.94 | 26 | 40 | 0.001 |
| After intervention | 38.38 + 1.48 | 34 | 40 |
