Table 2.
Contingency table of sample populations for 2008–2014.
| TBI+ | TBI– | |||
|---|---|---|---|---|
| Year | Endo+ | Endo– | Endo+ | Endo– |
| 2008 | 144 | 15,238 | 1,334 | 568,645 |
| 2009 | 154 | 16,919 | 1,585 | 646,008 |
| 2010 | 191 | 20,389 | 1,945 | 606,738 |
| 2011 | 220 | 20,906 | 2,024 | 622,756 |
| 2012 | 221 | 22,597 | 2,168 | 629,391 |
| 2013 | 223 | 22,153 | 2,237 | 616,052 |
| 2014 | 232 | 22,353 | 2,137 | 657,512 |
Contingency table of the sample populations used in this study. The table shows the database population for each year included in the analysis. TBI+, traumatic brain injury diagnosis present; TBI–, TBI diagnosis absent; Endo+, central endocrine diagnosis present; Endo–, central endocrine diagnosis absent.