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Table 1.

Dates and Results of ImPACT Tests, and Dates of fMRI Assessments for All Players Enrolled in the Study

AssessmentImPACT test datesImPACT memory composite (verbal)ImPACT memory composite (visual)fMRI session dates
Player 1001
Pre-season5 Augusta85931 August
In-season29 Augustb75†,‡57†,‡29 August
Post-season29 Novemberb9368†,‡29 November
Player 101
Pre-season5 Augusta93811 August
Player 102
Pre-season5 Augusta93592 August
In-season19 September
1 Octobera
7 Octoberb		96
97
83†,‡		56†
75
79		19 September

7 October
Post-season23 Novemberb91†,‡7923 November
Player 103
Pre-season5 Augusta98702 August
In-season6 Septemberb82†,‡766 September
 7 Octoberb78†,‡61†,‡7 OctoberA
Post-season29 Novemberb84†,‡8429 November
Player 1042
Pre-season5 Augusta77862 August
Player 105
Pre-season5 Augusta87672 August
In-season18 Octoberb997818 October
Post-season21 Novemberb957221 November
Player 106
Pre-season5 Augusta90812 August
Player 107
Pre-season5 Augusta94752 August
In-season20 Septemberb998320 September
Player 108
Pre-season5 Augusta63802 August
Player 1092
Pre-season5 Augusta80592 August
Player 1103
Pre-season———2 August
Player 111
Pre-season5 Augusta84702 August
Player 112
Pre-season5 Augusta92782 August
In-season6 Septemberb97806 September
Post-season5 Januarya,c867718 November
Player 1131,2
Pre-season14 Augusta67852 August
Player 114
Pre-season7 Augusta,d61492 August
Player 115
Pre-season5 Augusta94733 August
In-season5 Septemberb9466†5 September
Post-season18 Novemberb10065†18 November
Player 116
Pre-season6 Augusta98953 August
Player 117
Pre-season5 Augusta84664 August
Player 1181
Pre-season5 Augusta91754 August
In-season18 Octoberb88†,‡61†18 October
Post-season23 Novemberb968423 November
Player 119
Pre-season5 Augusta100785 August
Player 120
Pre-season5 Augusta88965 August
In-season29 Augustb
10 Octoberb		98
100		76†,‡
73†,‡		29 August
10 October
Post-season19 Novemberb9375†,‡19 November
Player 121
Pre-season5 Augusta77916 August
In-season26 Septemberb
25 Octoberb		76
88		79†
70†,‡		26 September
25 October
Post-season23 Novemberb9375†,‡23 November
Player 122
Pre-season6 Augusta78527 August
In-season16 Septemberb916816 September
Post-season23 Januaryb898123 January
Player 123
Pre-season11 Augusta935910 August

Player footnotes

1Injured during season, did not return to play.
2Quit participation in football prior to or during season.
3Injured prior to practice, ImPACT not administered; HIT System monitored after return to play.

ImPACT assessment footnotes

aTest administered at high school.
bTest administered at Purdue MRI Facility.
cScores for test administered on day of fMRI session not saved due to known on-line bug.
dTest flagged by ImPACT as possibly invalid.

ImPACT score footnotes

†Score outside 99% confidence interval.
‡Score outside 99% confidence interval and flagged by ImPACT as significantly decreased.

fMRI assessment footnote

AComputer network failure precluded completion of fMRI assessment; not included in the analyses.

fMRI, functional magnetic resonance imaging.