Table 1
Comparison of understanding pictorial and verbal representations of probability by medical inpatients (% correct responses)
| Pictorial | Verbal (%) | Verbal (fractional) | ||||
|---|---|---|---|---|---|---|
| 24–65 | >75 | 24–65 | >75 | 24–65 | >75 | |
| 1 in 5 (20%) | 90 | 74 | 93 | 74 | 48 | 38 |
| 1 in 2 (50%) | 98 | 92 | 98 | 98 | 60 | 50 |
| 3 in 4 (75%) | 93 | 90 | 88 | 63 | 55 | 48 |
| 1 in 10 (10%) | 95 | 82 | 93 | 77 | 81 | 79 |
| 1 in 100 (1%) | 100 | 99 | 93 | 71 | 95 | 78 |
| 1 in 20 (5%) | 90 | 70 | 86 | 51 | 52 | 39 |
