Overall, adjusted and bias-adjusted intervention effect
| Intervention effect | Swimming lesson effect | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Approach | n | Point estimate | Lower 95% CI | Upper 95% CI | Approach | n | Point estimate | Lower 95% CI | Upper 95% CI |
| Unadjusted | 149 | 12.3 | 10.7 | 14.1 | Analysis of variance with Tukey HSD | 127 | 10.8 | 6.9 | 14.7 |
| Adjusted (sex, age, swimming lesson) | 149 | 6.8 | 1.6 | 12.0 | Propensity matching without replacement | 104 | 8.2 | 4.8 | 11.8 |
HSD, honest significant differences.