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The impact of using grading and assessment of predictive tools on participants’ decisions (n=194).
| Criteria | No GRASPa | GRASP | Change (%) | P value |
| Score (0 to 100%) | 53.7 | 88.1 | 64 | <.001 |
| Guessing (1 to 5) | 2.48 | 1.98 | −20 | <.001 |
| Subjective (1 to 5) | 3.55 | 3.27 | −8 | .003 |
| Objective (1 to 5) | 3.11 | 4.10 | 32 | <.001 |
| Confidence (1 to 5) | 3.55 | 3.96 | 11 | <.001 |
| Satisfaction (1 to 5) | 3.54 | 3.99 | 13 | <.001 |
| Time in min (90th percentile) | 12.4 | 6.4 | −48 | .38 |
aGRASP: grading and assessment of predictive tools.
