Table 1

Average weekly prevalence (percentage of athletes affected) of all health problems and substantial problems reported, as well as the prevalence of the subcategories illness, injury, overuse injury and acute injury in the whole group and each of the four subgroups of athletes

	Team	Endurance	Tactical/technical	Paralympic	Total cohort
	n=30	n=53	n=36	n=26	n=142
Health problems reported
All	45 (42–48)^,^,***	30 (27–32)^,**	25 (21–28)^,*	29 (26–33)*	36 (34–38)
Illness	6 (5–8)^,^,***	16 (13–18)^,**	10 (9–12)^,^,***	16 (14–19)^,**	13 (12–14)
Injury	42 (39–45)^,^,***	17 (16–19)*	18 (14–22)*	19 (17–21)*	25 (24–27)
Overuse injury	31 (29–33)^,^,***	15 (13–17)*	16 (13–18)*	13 (12–14)^,*	20 (18–21)
Acute injury	10 (8–12)^,^,***	2 (1–2)*	3 (2–4)*	2 (1–3)*	4 (3–5)
Substantial problems
All	16 (14–17)***	14 (13–16)***	11 (9–13)^,^,***	16 (14–19)***	15 (14–16)
Illness	2 (1–3)^,^,***	8 (6–10)*	6 (5–8)*	8 (6–10)*	6 (6–7)
Injury	14 (13–16)^,^,***	7 (6–7)*	5 (4–7)^,^,***	11 (9–12)^,^,**	9 (9–10)
Overuse injury	9 (8–11)^,*	6 (5–6)*	4 (3–5)^,^,***	10 (8–11)^,*	7 (6–8)
Acute injury	5 (4–6)^,^,***	1 (0–1)*	2 (1–2)*	1 (0–2)*	2 (2–3)

p<0.05 vs *team group, **endurance group, ***tactical/technical group, ****paralympic group.
All data are mean values with 95% CI in parenthesis. Substantial problem: causing moderate/severe reductions in training volume or sports performance, or complete inability to participate in training or competition.