Table 1.
Description of Sample and Self-Reported Characteristics
| Frequency | Percent | |
|---|---|---|
| Sex | ||
| Male | 979 | 47.8 |
| Female | 1068 | 52.2 |
| Total | 2047 | 100.0 |
| Grade in school | ||
| Freshman | 664 | 32.4 |
| Sophomore | 493 | 24.1 |
| Junior | 452 | 22.1 |
| Senior | 438 | 21.4 |
| Total | 2047 | 100.0 |
| Primary sport | ||
| Soccer | 286 | 14.0 |
| Lacrosse | 208 | 10.2 |
| Tennis | 192 | 9.4 |
| Basketball | 159 | 7.8 |
| Hockey | 122 | 6.0 |
| Crew | 122 | 6.0 |
| Cross Country | 101 | 4.9 |
| Squash | 98 | 4.8 |
| Volleyball | 104 | 5.1 |
| Baseball | 79 | 3.9 |
| Other | 576 | 28.1 |
| Level of sports played* | ||
| School sport only† | 1352 | 88.0 |
| Premier/elite only | 125 | 8.1 |
| Recreation only | 59 | 3.8 |
| How many seasons of school sports played‡ | ||
| One season | 346 | 26.0 |
| Two seasons | 493 | 37.0 |
| Three seasons | 494 | 37.1 |
| Ever experienced a concussion | ||
| Yes | 676 | 33.0 |
| No | 1371 | 67.0 |
| Age of first concussion (years)§,||,¶ | ||
| 0–4 | 43 | 6.7 |
| 247 | 38.2 | |
| 10–15 | 356 | 55.1 |
| Number of concussions that were sports-related||,#,** | ||
| None | 149 | 24.9 |
| 1 | 259 | 43.3 |
| 2or more | 190 | 31.8 |
| Number of sports-related concussions sustained while playing for school††,‡‡,§§,¶¶ | ||
| None | 96 | 32.8 |
| 1 | 139 | 47.4 |
| 2or more | 58 | 19.8 |
Excludes students who indicated they played more than one level of sports, eg, those who played both school and elite/premier sports.
Includes students who gave multiple responses to the question “how many seasons of school sports played” as the inability to interpret number of seasons did not affect the ability to determine they participated only in school sports.
Students who gave multiple responses to the question were excluded because we were unable to interpret their responses to the question.
Question wording: How old were you when you think you sustained your first concussion?
Only includes students who answered “yes” to “have you ever had a concussion?”
30 students who answered yes to “have you ever had a concussion?” did not answer this question.
Question wording: How many of your concussions were related to organized sports (ie, team sports)?
78 students (11.5%) who answered yes to “have you ever had a concussion?” did not answer this question.
Question wording: of your sports-related concussions, how many did you receive while playing for your school?
Only includes students who indicated they had received at least one sports-related concussion in the “how many of your concussions were related to organized sports (ie, sports teams)?” question.
17 students (5.5%) who answered affirmed that they had at least one sports-related question did not answer this question.
Limited to students who reported playing only school sports (any number of seasons).