Table 1 Constituent sub-tests in the HIA01 off-field screening tool

Maddock’s questions

Orientation

•What venue are we at today?

•Which half is it now?

•Who scored last in this match?

•What team did you play last week/game?

•Did your team win the last game?

0–5

< 5

Immediate memory

Cognition

Remembering a list of 5 words in 3 trials

0–15

< 12 or less than baseline

Digits backwards

Cognition

Repeating word strings (increasing from 3- to 6-word lengths) in reverse order

0–4

< 3 or less than baseline

Tandem gait

Balance

6 m line heel-to-toe gait along a straight line

Continuous

> 14 s

Symptom checklist

Symptoms

•Do you have a headache?

•Do you have any dizziness?

•Do you have any ‘pressure in your head’?

•Do you feel nauseated or do you feel like vomiting?

•Do you have any blurred vision?

•Does the light or noise worry you?

•Do you feel as though you are slowing down?

•Do you feel like you are ‘in a fog’?

•Do you feel unwell?

0–9

> 0

Delayed Recall

Cognition

Remembering previous list of 5 words in any order

0–5

< 3 or less than baseline

Clinical signs

Subjective signs of a possible concussion

•Emotional - sad, anxious, nervous, irritable

•Drowsy

•Difficulty concentrating

•Doctor suspects possible concussion for other reasons.

0–1

> 0