Table 2

CT and skull x-rays performed on children who did not fit CHALICE rule*

Case number	Age (years)	Injury cause/symptoms	Result	Neurosurgery?
1	15	Persistent headache a week later	Normal
2	15	GCS=15 on arrival but GCS=13 in ambulance, brief LOC, 2 discrete vomits	Normal
3	14	GCS=14 on arrival, brief LOC, fell off ride-on-mower	Normal
4	11	Fell 2 m, had brief LOC	Normal
5	9	Fell 1.25 m from tree to concrete with brief LOC	Normal
6	7	Fell off bike, brief LOC, bruise on head	Normal
7	7	Previously had a tumour, has missing bone flap, hit it when fell over	Normal
8	6	Vomit <3 times, headache, fell off trampoline	Normal
9	2	Headache, lump on head	Normal
10	14	GCS=15 on arrival, LOC of 4 min, fell off horse	normal
11	14	GCS=15 on arrival, LOC for 3 min, agitated, fell playing football	Normal
12	10	Headache, drowsy, dizzy, fell off shoulders	Normal
13	11	Vomit <3 times, fell from tree <3 m	Normal
14	11	Fell 2 m, brief LOC	Skull fracture	No
15	9	GCS=15, vomited once, mild headache, fell and hit head on concrete	Small left occipital contusion	No
16	15	Playing AFL, vomited once, brief LOC, headache, nausea	Orbital and maxillary fractures	No
17	3	Fell 1 m onto tiles, had headache, boggy swelling	Skull fracture and contusion	No
18	10	GCS=15 on arrival, previously GCS=14 in ambulance, brief LOC	Subdural haematoma	No
19	7	Fell off bike wearing helmet, lump on head	Skull fracture, small haematoma	No
20	7	On admission GCS=15, previously 13, irritable, fell off bike, no helmet	Small subgaleal haemorrhage and parietal haemorrhagic contusion	Yes, repair of anterior fossa and dura tear
21	2	Lump on head	Haematoma parietal	No

↵* See box 1 for definition.
AFL, Australian Football League; CHALICE, children's head injury algorithm for the prediction of important clinical events; GCS, Glasgow Coma Scale; LOC, loss of consciousness