Table 4 Estimation of the effect of helmet wear on Injury Severity Scale (ISS) score and length of stay (LOS) for each latent class with 95% confidence intervals
Latent class | ISS effect (points) | LOS effect (days) |
|---|---|---|
Polytrauma | − 1.25 (− 4.87 to 2.69) | − 0.52 (− 3.20 to 2.91) |
Brain | 0.36 (− 1.70 to 2.64) | 0.23 (− 0.84 to 1.35) |
Abdomen | 0.64 (− 0.39 to 1.75) | − 0.03 (− 1.16 to 1.32) |
Upper limb | 0.14 (− 0.02 to 0.30) | 0.02 (− 0.11 to 0.15) |
Lower limb | 0.40 (− 0.42 to 1.28) | − 0.34 (− 0.71 to 0.04) |
Head | − 0.05 (− 0.42 to 0.33) | − 0.03 (− 0.16 to 0.11) |