Intervention (N = 175) | Control (N = 240) | Comparison of change between intervention and control groups | |||||
---|---|---|---|---|---|---|---|

Paired T test | Paired T test | T test | |||||

Variables | Pre- | Post- | P-value | Pre- | Post- | P-value | P-value |

Score of knowledge about biospecimen, mean (SD) | 2.2 (1.9) | 3.0 (2.0) | <0.0001 | 2.0 (1.8) | 2.2 (1.8) | 0.0513 | <0.0001 |

Score of knowledge about biospecimen research, mean (SD) | 1.4 (1.7) | 2.7 (2.0) | <0.0001 | 1.4 (1.5) | 1.6 (1.6) | 0.0541 | <0.0001 |

Willingness to donate blood, mean (SD) | 6.9 (2.7) | 7.3 (2.7) | 0.0466 | 6.4 (2.7) | 6.4 (2.6) | 0.9130 | 0.0921 |