Table 3 Distributions for the location, type and onset of time-loss injury as a function of playing position by sex for U.S. Rugby-7s U19 players (N = 69; 51 males, 18 females)
Males | ||||||
|---|---|---|---|---|---|---|
| Â | Proportion; % (95% CI) | Injury severity; mean days absent (95% CI) | ||||
Nature of injury (N = 51) | Backs (n = 37) | Forwards (n = 8) | All Players1 (n = 51) | Backs (n = 37) | Forwards (n = 8) | All Players1 (n = 51) |
Location | Â | |||||
 Head/neck | 13.5 (5.5–29.4) | 50 (17.9–82.1) | 21.6 (12.1–35.4) | 30.6 (0–81.6) | 51.3 (0–137.4) | 45.3 (16.6–73.9) |
 Upper extremity | 32.4 (19–49.6) | 12.5 (1.4–58.8) | 31.4 (19.9–45.7) | 51.3 (26.1–76.5) | 36.0 (–) | 46.9 (28.2–65.5) |
 Trunk | 5.4 (1.3–20.2) | 0 (–) | 3.9 (0.9–15.0) | 26.0 (26.0–26.0) | (–) | 26.0 (26.0–26.0) |
 Lower extremity | 48.6 (32.6–65) | 37.5 (11.1–74.3) | 41.2 (28.2–55.5) | 31.8 (0–64.6) | 14 (0–44.1) | 29.2 (1.3–57.1) |
 Other | – | – | 2.0 (0.3–13.4) | (–) | (–) | 3.0 (–) |
Type | Â | |||||
 Bone | 13.5 (5.5–29.4) | 12.5 (1.4–58.8) | 15.7 (7.9–28.9) | 48.4 (25.3–71.5) | 130.0 (–) | 55.0 (26.4–83.6) |
 Joint (non-bone)/ligament | 43.2 (27.9–60) | 37.5 (11.1–74.3) | 25.5 (15.1–39.6) | 35.6 (0–72.6) | 22.0 (0–64.4) | 33.5 (2.8–64.2) |
 Muscle/tendon | 27.0 (14.8–44.1) | 12.5 (1.4–58.8) | 2.0 (0.3–13.4) | 40.7 (7–74.4) | 12 (–) | 40.7 (14.5–66.8) |
 Skin | 2.7 (0.3–18.1) | 0 (–) | 2.0 (0.3–13.4) | 21 (–) | (–) | 21.0 (–) |
 Concussion | 13.5 (5.5–29.4) | 37.5 (11.1–74.3) | 17.6 (9.2–31.1) | 30.6 (0–81.6) | 25 (0–65.0) | 32.0 (7.4–56.6) |
 Other injuries | (–) | (–) | 2.0 (0.3–13.4) | (–) | (–) | 3.0 (–) |
Onset | Â | |||||
 Acute | 100 (–) | 100 (–) | 100 (–) | 37.6 (19.9–55.4) | 35.4 (1.5–69.2) | 37.6 (24.0–51.2) |
Females | ||||||
| Â | Proportion; % (95% CI) | Injury severity; mean days absent (95% CI) | ||||
Nature of injury (N = 18) | Backs (n = 8) | Forwards (n = 8) | All players1 (n = 18) | Backs (n = 8) | Forwards (n = 8) | All players1 (n = 18) |
Location | Â | |||||
 Head/neck | 37.5 (10.2–76) | 25 (4.9-68.2) | 27.8 (10.9–54.7) | 41.3 (21.3–61.4) | 51.0 (0.0–394.1) | 45.2 (19.6–70.8) |
 Upper extremity | 50 (16.6–83.4) | 12.5 (1.2-62) | 33.3 (14.4–59.7) | 28.5 (0.0–62.4) | 32.0 (–) | 25.0 (4.5–45.5) |
 Trunk | 0.0 (–) | 0.0 (-) | 0.0 (–) | 0.0 (–) | 0.0 (–) | 0.0 (–) |
 Lower extremity | 12.5 (1.2–62) | 62.5 (24-89.8) | 38.9 (18.2–64.5) | 31.0 (–) | 9.8 (0.0–21.3) | 22.4 (0.0–46.9) |
Type | Â | |||||
 Bone | 12.5 (1.2–62.0) | 0.0 (-) | 11.1 (2.4–38.9) | 56.0 (–) | 0.0 (–) | 66.5 (0.0–199.9) |
 Joint (non-bone)/ligament | 37.5 (10.2–76) | 50 (16.6–83.4) | 38.9 (18.2–64.5) | 19.3 (0.0–52.4) | 16.0 (0.0–38.8) | 17.4 (5.6–29.3) |
 Muscle/tendon | 12.5 (1.2–62) | 37.5 (10.2–76) | 27.8 (10.9–54.7) | 31.0 (–) | 31.7 (0.0–132.3) | 26.7 (0.0–56.0) |
 Skin | 0.0 (–) | 0.0 (–) | 0.0 (–) | 0.0 (–) | 0.0 (–) | 0.0 (–) |
 Concussions | 37.5 (10.2–76) | 12.5 (1.2–62) | 22.2 (7.7–49.5) | 41.3 (21.3–61.4) | 24.0 (–) | 37.0 (19.7–54.3) |
 Other injuries | 0.0 (–) | 0.0 (–) | 0.0 (–) | 0.0 (–) | 0.0 (–) | 0.0 (–) |
Onset | Â | |||||
 Acute | 100 (–) | 100 (–) | 100 (–) | 33.6 (20.3–47.0) | 22.9 (2.1–43.6) | 29.6 (18.6–40.7) |