Table 6

Descriptive statistics for outcome measures (displayed as estimated marginal means (unless otherwise indicated) with 95% CIs) immediately post intervention, stratified by health literacy

Outcome measureInadequate HLAdequate HLDifferenceP 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.