Table 2 Distributions for the location, type, and onset of medical-attention injury as a function of playing position by sex for U.S. Rugby-7s U19 players
Proportion; % (95% CI) | ||||||
|---|---|---|---|---|---|---|
| Â | Males | Females | ||||
Nature of injury | Backs (n = 39) | Forwards (n = 33) | All players1 (n = 83) | Backs (n = 8) | Forwards (n = 7) | All players1 (n = 21) |
Location | Â | |||||
 Head/neck | 33.3 (19.9–50.1) | 24.2 (12.1–42.6) | 30.1 (21.1–41.0) | 37.5 (8.7–79.2) | 28.6 (4.2–78.5) | 23.8 (9.5–48.3) |
 Upper extremity | 28.2 (15.9–44.9) | 30.3 (16.6–48.8) | 28.9 (20.0–39.8) | 12.5 (0.9–68.1) | 14.3 (1.0–74.3) | 28.6 (12.5–52.9) |
 Trunk | 2.6 (0.3–17.4) | 0 (–) | 1.2 (0.2–8.4) | 0 (–) | 14.3 (1.0–74.3) | 4.8 (0.6–30.9) |
 Lower extremity | 33.3 (19.9–50.1) | 42.4 (26.2–60.4) | 37.3 (27.5–48.4) | 37.5 (8.7–79.2) | 42.9 (9.1–85) | 38.1 (19.1–61.7) |
 Other | 2.6 (0.3–17.4) | 3.0 (0.4–20.3) | 2.4 (0.6–9.4) | 12.5 (0.9–68.1) | 0 (–) | 4.8 (0.6–30.9) |
Type | Â | |||||
 Bone | 2.6 (0.3–17.4) | 3.0 (0.4–20.3) | 3.6 (1.1–10.8) | 0 (–) | 0 (–) | 4.8 (0.6–30.9) |
 Joint (non-bone)/ligament | 35.9 (22–52.6) | 48.5 (31.4–65.9) | 41.0 (30.7–52.0) | 37.5 (8.7–79.2) | 42.9 (9.1–85) | 42.9 (22.6–65.8) |
 Muscle/tendon | 28.2 (15.9–44.9) | 27.3 (14.3–45.7) | 25.3 (17.0–36.0) | 12.5 (0.9–68.1) | 14.3 (1.0–74.3) | 19 (6.7–43.6) |
 Skin | 23.1 (12.1–39.5) | 12.1 (4.4–29.4) | 18.1 (11.1–28.1) | 12.5 (0.9–68.1) | 28.6 (4.2–78.5) | 14.3 (4.2–38.7) |
 Concussions | 7.7 (2.4–22.2) | 6.1 (1.4–22.6) | 9.6 (4.8–18.3) | 25.0 (4.1–72.4) | 14.3 (1–74.3) | 14.3 (4.2–38.7) |
 Other injuries | 2.6 (0.3–17.4) | 3.0 (0.4–20.3) | 2.4 (0.6–9.4) | 12.5 (0.9–68.1) | 0 (–) | 4.8 (0.6–30.9) |
Onset | Â | |||||
 Acute | 92.3 (77.8–97.6) | 100 (–) | 95.2 (87.6–98.2) | 100 (–) | 85.7 (25.7–99.0) | 90.5 (66.0–97.9) |
 Gradual | 7.7 (2.4–22.2) | 0 (–) | 4.8 (1.8–12.4) | 0 (–) | 14.3 (1.0–74.3) | 9.5 (2.1–34) |