Table 8.

Summary of descriptive epidemiological studies of injuries conducted in youth rugby union players from England

Study	Study length	Sample level	Number of players	Number of exposure hours	Number of injuries	Results
Match injury—greater than 24-h time-loss
Haseler et al. [120]	1 playing season (9 months)	U9 to U17 Club	210	1636 player-match hours	39	Overall match injury incidence—24/1000 player-match hours Mean severity—32 days By injury location: head/neck—26%; upper limb—31%; trunk—10%; lower limb—33%
Palmer-Green et al. [119]	2 playing seasons	U18 elite schoolboy	222	3843 player-match hours	134	Overall match injury incidence—35/1000 player-match hours Mean severity—27 days By injury location: head/neck—18%; upper limb—24%; trunk—10%; lower limb—47%
	2 playing seasons	U18 academy	250	2343 player-match hours	109	Overall match injury incidence—47/1000 player-match hours Mean severity—33 days By injury location: head/neck—14%; upper limb—28%; trunk—3%; lower limb—55%
Barden and Stokes [121]	3 playing seasons	U18 elite schoolboy	132	595 player-match hours	46	Overall match injury incidence—77/1000 player-match hours Mean severity—20 days By injury location: head/neck—32%; upper limb—32%; trunk—10%; lower limb—25%
		U18 sub-elite schoolboy		1698 player-match hours	57	Overall match injury incidence—34/1000 player-match hours Mean severity—19 days By injury location: head/neck—15%; upper limb—26%; trunk—6%; lower limb—53%
Training injury—greater than 24-h time-loss
Palmer-Green et al. [45]	2 playing seasons	U18 elite schoolboy	222	15,877 player-training hours	34	Overall training injury incidence—2.1/1000 player-training hours Mean severity—27 days By injury location: head/neck—9%; upper limb—15%; trunk—32%; lower limb—44%
	2 playing seasons	U18 academy	250	47,431 player-training hours	64	Overall training injury incidence—1.4/1000 player-training hours Mean severity—17 days By injury location: head/neck—9%; upper limb—13%; trunk—13%; lower limb—65%