Table 3 Assessment score means and post hoc analysis
Untrained laypersons, mean (95% CI) | Trained laypersons, mean (95% CI) | Lifeguards, mean (95% CI) | One-way-ANOVA | Post hoc analysis (t-test with Bonferroni corrected p-value*) | |||
|---|---|---|---|---|---|---|---|
Untrained laypersons vs. Trained laypersons | Untrained laypersons vs. lifeguards | Trained laypersons vs. lifeguards | |||||
PBLS | 47.08 (38.41–55.76) | 78.63 (72.06–85.19) | 89.62 (85.85–93.38) | F(2,29) = 64.011, p < 0.001) | t(18) = −5.21, p < 0.001 | t(20) = −11.38, p < 0.001 | t(21) = −3.42, p = 0.02 |
FBAOM | 46.50 (38.54–54.46) | 75.00 (65.54–84.46) | 62.25 (52.92–71.58) | F(2,27) = 13.038, p < 0.001 | t(17) = −6.72, p < 0.001 | t(18) = −2.91, p = 0.03 | t(18) = 2.17, p = 0.09 |