Outcome measure | Inadequate HL | Adequate HL | Difference | P value |
Primary outcomes | ||||
Self-efficacy to ask questions and be involved in healthcare decision-making (0–100) | 84.87 (84.19, 85.55) | 84.59 (83.96, 85.20) | −0.29 (−1.22, 0.63) | 0.54 |
Intention to engage in shared decision-making (0–6) | 4.96 (4.91, 5.02) | 5.01 (4.96, 5.06) | 0.05 (−0.03, 0.12) | 0.19 |
Secondary outcomes | ||||
Intention to follow treatment plan without further questioning (0–10) | 7.46 (7.32, 7.60) | 6.94 (6.80, 7.07) | −0.53 (−0.72 to −0.33) | <0.001 |
Accurate knowledge of patient’s shared decision-making rights (proportion) | 0.821 (0.800, 0.843) | 0.890 (0.869, 0.910) | 0.068 (0.039, 0.098) | <0.001 |
Positive attitude towards shared decision-making (proportion) | 0.483 (0.445, 0.521) | 0.581 (0.547, 0.616) | 0.098 (0.047, 0.150) | <0.001 |
Questions aligned with Choosing Wisely (count) | 0.74 (0.66, 0.81) | 1.29 (1.20, 1.39) | 0.56 (0.44, 0.68) | <0.001 |
Values are collapsed across intervention arms.
HL, health literacy.