Descriptive epidemiology of injuries in Japanese collegiate men’s basketball: 2013/2014 to 2019/2020

Table 6 Comparison of common injuries in Japanese collegiate and NCAA men’s basketball

Injury	Japan		NCAA		Japan versus NCAA
Injury	n	IR and 95% CI (per 1000 AEs)	n	IR and 95% CI (per 1000 AEs)	IRR and 95% CI
Ankle sprain	163	1.67 (1.41–1.93)	230	0.80 (0.69–0.90)	2.10 (1.72–2.57) *
Hand/wrist sprain	7	0.07 (0.02–0.13)	30	0.10 (0.07–0.14)	0.69 (0.30–1.58)
Concussion	9	0.09 (0.03–0.15)	97	0.34 (0.27–0.40)	0.28 (0.14–0.55)^†
Hip/groin strain	5	0.05 (0.01–0.10)	30	0.10 (0.07–0.14)	0.49 (0.19–1.27)
Knee internal derangement	23	0.24 (0.14–0.33)	59	0.20 (0.15–0.26)	1.16 (0.71–1.87)

AEs; athlete exposure(s): Overall in Japan = 97,515, CI; confidence interval, IR; injury rate, IRR; injury rate ratio
* Japan versus the NCAA data reported by Zuckerman et al. (2018) injury rate ratio > 1.00 and does not include 1.00 in the 95% CI
^†The NCAA data reported by Zuckerman et al. (2018) versus Japan injury rate ratio > 1.00 and does not include 1.00 in the 95% CI

ISSN: 2197-1714