Estimated relative mean square error of annualized estimates of the number of injury episodes by cumulative weeks since injury, under a linear regression model for the expected values of the annualized estimates, with weeks 1–2 as the reference period for estimating bias, NHIS, 1997–99
| Weeks since injury | Average 1997–99 | |||
|---|---|---|---|---|
| Annualized estimate (thousands) | Relative squared bias per 10000 | Relative variance* per 10000 | Relative MSE per 10000 | |
| *Variance estimates reflect the variability due to imputation via the multiple imputation analysis. | ||||
| All episodes | ||||
| 1 | 33733 | 0.4 | 60.1 | 60.5 |
| 1–2 | 34089 | 0.0 | 28.0 | 28.0 |
| 1–3 | 35096 | 0.4 | 20.3 | 20.7 |
| 1–4 | 33978 | 1.7 | 15.7 | 17.4 |
| 1–5 | 34217 | 3.7 | 12.1 | 15.9 |
| 1–6 | 33836 | 6.6 | 10.5 | 17.2 |
| 1–7 | 33338 | 10.4 | 9.1 | 19.5 |
| 1–8 | 32781 | 14.9 | 8.1 | 23.0 |
| 1–9 | 32667 | 20.3 | 7.3 | 27.6 |
| 1–10 | 32235 | 26.5 | 6.6 | 33.1 |
| 1–11 | 31903 | 33.6 | 6.0 | 39.5 |
| 1–12 | 31967 | 41.4 | 5.8 | 47.2 |
| 1–13 | 32508 | 50.1 | 5.7 | 55.8 |
| Contusions/superficial injuries | ||||
| 1 | 6140 | 6.9 | 307.7 | 314.6 |
| 1–2 | 5869 | 0.0 | 151.8 | 151.8 |
| 1–3 | 5765 | 6.9 | 102.4 | 109.3 |
| 1–4 | 5292 | 27.5 | 69.5 | 97.0 |
| 1–5 | 5181 | 61.8 | 55.1 | 116.8 |
| 1–6 | 4971 | 109.8 | 48.6 | 158.4 |
| 1–7 | 4781 | 171.6 | 41.2 | 212.8 |
| 1–8 | 4647 | 247.1 | 34.3 | 281.4 |
| 1–9 | 4583 | 336.3 | 30.8 | 367.2 |
| 1–10 | 4508 | 439.3 | 26.5 | 465.8 |
| 1–11 | 4420 | 556.0 | 23.9 | 579.9 |
| 1–12 | 4357 | 686.4 | 22.0 | 708.4 |
| 1–13 | 4429 | 830.6 | 20.0 | 850.5 |
| Fractures | ||||
| 1 | 5101 | 0.3 | 297.7 | 298.1 |
| 1–2 | 5232 | 0.0 | 160.4 | 160.4 |
| 1–3 | 5457 | 0.3 | 118.0 | 118.4 |
| 1–4 | 5306 | 1.4 | 83.1 | 84.5 |
| 1–5 | 5490 | 3.1 | 68.1 | 71.2 |
| 1–6 | 5618 | 5.5 | 59.0 | 64.5 |
| 1–7 | 5571 | 8.6 | 48.1 | 56.7 |
| 1–8 | 5548 | 12.4 | 41.9 | 54.2 |
| 1–9 | 5611 | 16.9 | 38.1 | 55.0 |
| 1–10 | 5576 | 22.0 | 36.4 | 58.4 |
| 1–11 | 5557 | 27.9 | 33.5 | 61.4 |
| 1–12 | 5513 | 34.4 | 31.2 | 65.6 |
| 1–13 | 5567 | 41.6 | 28.4 | 70.0 |