Table 3 Number, average severity (days absence), incidence (number of injuries/1000 player-hours and per 1000 events) and risk (number of days lost/1000 player-hours and per 1000 events) of time-loss injuries as a function of the type of contact event
Event typeNumber of injuriesIncidence of injurySeverity of injuryRisk of injury
Injuries/1000 player-hours (95% CI)Injuries/1000 events (95% CI)Days (95% CI)Days lost/1000 player-hours (95% CI)Days lost/1000 events (95% CI)
Collision363.9 (2.8–5.4)10.5 (7.6–14.6)19.0 (6.6–31.4)74.1 (53.5–102.7)199.8 (144.1–277.0)
Lineout80.9 (0.5–1.8)1.1 (0.6–2.2)41.9 (8.6–75.2)36.3 (18.2–72.6)46.5 (23.3–93.0)
Maul212.3 (1.5–3.5)4.9 (3.2–7.5)9.6 (3.6–15.6)21.8 (14.2–33.4)47.2 (30.8–72.4)
    Not collapsed91.0 (0.5–1.9)6.4 (3.3–12.3)10.8 (0–23.3)10.5 (5.5–20.2)69.0 (35.9–132.6)
    collapsed121.3 (0.7–2.3)4.2 (2.4–7.4)8.7 (3.5–13.9)11.3 (6.4–19.9)36.7 (20.8–64.6)
Ruck657.0 (5.5–8.9)2.0 (1.6–2.6)12.7 (8.6–16.8)89.2 (70.0–113.8)25.0 (19.6–31.9)
Scrum545.8 (4.4–7.6)8.1 (6.2–10.6)26.4 (17.1–35.7)154.2 (118.1–201.3)213.2 (163.2–278.2)
    Not collapsed505.4 (4.1–7.1)9.0 (6.8–11.9)27.9 (18.0–37.8)150.9 (114.4–199.1)251.6 (190.7–332.0)
    collapsed40.4 (0.2–1.1)3.5 (1.3–9.3)7.5 (5.4–9.6)3.2 (1.2–8.5)26.0 (9.8–69.3)
Tackle31333.9 (30.3–37.9)6.1 (5.5–6.8)20.7 (16.7–24.7)701.6 (628.0–783.8)127.0 (113.7–141.9)
All events49753.8 (49.3–58.7)4.7 (4.3–5.1)20.0 (17.0–23.0)1077.2 (986.5–1176.2)94.3 (86.4–103.0)