| Control group | Podcast group | Adjusted odds ratioa | Adjusted differencea |
---|---|---|---|---|
One year after listening to the podcast | ||||
 Mean score | ||||
  Primary analysis | Mean score 52.6% (SD 20.4%) | Mean score 58.9% (SD 20.6%) |  | Mean difference: 6.7% (95% CI 3.3% to 10.1%) p < 0.0001 |
  Lee bounds |  |  |  | 6.2% to 6.7% (95% CI 1.8% to 9.3%) |
Initially after listening to the podcast | ||||
 Mean score | ||||
  Primary analysis | Mean score 52.4% (SD 17.6%) | Mean score 67.8% (SD 19.6%) |  | Mean difference: 15.5% (95% CI 12.5% to 18.6%) |
  Excluding participants lost to 1-year follow up | Mean score 53.0% (SD 17.9%) | Mean score 67.6% (SD 19.7%) |  | Mean difference: 14.9% (95% CI 11.7% to 18.1%) |
 Passing score | ||||
  Primary analysis | 37.7% of parents (n = 103/ 273) | 70.5% of parents (n = 203/288) | 4.2 (95% CI 2.9 to 6.0) p < 0.0001 | 34.0% more parents (95% CI 26.2% to 40.7%) |
  Excluding participants lost to 1-year follow-up | 39.6% of parents (n = 101/ 255) | 69.8% of parents (n = 187/268) | 3.8 (95% CI 2.6 to 5.5) p < 0.0001 | 31.5% more parents (95% CI 23.4% to 38.6%) |