Table 7.
Participants with cancer (n = 116) responses (mean, SD), according to combined vs. numerical formats
| Format | anova F‐value (P) | |||||
|---|---|---|---|---|---|---|
| Combined verbal and numerical expression | Numerical term only | Relative risk estimate increase: verbal + numerical > numerical only | ||||
| M (SD) | n | M (SD) | n | |||
| Side‐effect risk estimates (actual %) | ||||||
| Chance of aching joints & muscles (60%) | 28.4 (29.2) | 52 | 12.5 (16.1) | 41 | +127.2% | 9.86 (0.002) |
| Chance of severe anaemia (6%) | 16.9 (19.3) | 52 | 12.1 (13.9) | 43 | +39.7% | 1.87 (0.175) |
| Chance of serious allergic reaction (0.1–1%) | 6.4 (12.7) | 48 | 2.3 (7.6) | 43 | +178.3% | 3.44 (0.07) |
| Chance of itching (0.01–0.1%) | 9.9 (22.6) | 53 | 1.1 (5.0) | 39 | +800.0% | 5.64 (0.02) |
| Chance of dizziness or fits (<0.01%) | 7.0 (16.8) | 49 | 1.5 (9.5) | 40 | +366.7% | 3.39 (0.07) |
| Chance of ANY side‐effect | 38.0 (33.9) | 49 | 17.6 (19.7) | 41 | +115.9% | 11.55 (0.001) |
| Likert scale items | ||||||
| Satisfaction with side‐effect information | 4.4 (1.3) | 62 | 4.5 (1.3) | 54 | 0.65 (0.80) | |
| How bad overall are Taxol side‐effects | 3.5 (0.9) | 62 | 3.4 (1.2) | 54 | 0.26 (0.61) | |
| Likelihood of having a side‐effect | 4.0 (1.3) | 62 | 3.7 (1.6) | 54 | 1.40 (0.24) | |
| General risk to health from Taxol | 3.2 (0.9) | 62 | 3.2 (1.1) | 54 | 0.14 (0.91) | |
| Impact of information on decision to take Taxol | 2.8 (1.6) | 62 | 2.4 (1.3) | 53 | 2.35 (0.13) | |
Bold text indicates statistical significance (p <.05).