Table 4.
Independent association of predictors to sports-related concussion occurrence in multivariable models.
| Predictor | Odds ratio | Standard error | 95% CI | p-value |
|---|---|---|---|---|
| Primary model | ||||
| High SRC prevalence sport participationa | 3.240 | 1.671 | 1.193, 9.156 | 0.022 |
| Insomnia Severity Index score ≥15 | 3.047 | 1.782 | 0.929, 9.222 | 0.054 |
| Daytime sleepiness 2 + times per month | 4.789 | 2.190 | 1.251, 31.623 | 0.046 |
| Secondary model 1 (Total score model) | ||||
| High SRC prevalence sport participationa | 3.291 | 1.667 | 1.218, 9.266 | 0.020 |
| Insomnia Severity Index total score | 1.083 | 1.048 | 0.988, 1.189 | 0.088 |
| Daytime sleepiness 2 + times per month | 4.357 | 2.200 | 1.122, 28.923 | 0.062 |
| Secondary model 2 (Individual item model) | ||||
| High SRC prevalence sport participationa | 3.012 | 1.691 | 1.081, 8.696 | 0.036 |
| Daytime sleepiness 2 + times per month | 3.541 | 2.234 | 0.873, 23.956 | 0.116 |
| PSQI Item 9: Daytime motivation | 2.409 | 1.381 | 1.305, 4.696 | 0.007 |