Table 2. Incidence rates of injury in mixed martial arts matches by competition characteristics,
September 2001 through December 2004, Nevada
.

 

Competitors #(%)

Injured Competitors #(%)

Injury Rate per 100 Competitors

Rounds fought
#(%)

Injury Rate per 100 Fought Rounds

Age Groups (years)*

 

 

 

 

 

<25

76 (22.3)

13 (16.9)

17.1

132 (21.2)

9.8

25-29

144 (41.5)

29 (37.7)

20.6

260 (41.8)

11.2

30+

124 (36.4)

35 (45.5)

28.2

230 (37.0)

15.2

 

 

 

χ2=3.9, p=0.14

 

χ2=2.2, p=0.33

Weight Class

 

 

 

 

 

Fly, bantam, feather, or light

32 (9.4)

5 (6.4)

15.23

53 (8.5)

9.4

Welter or Middle

150 (43.8)

35 (44.9)

23.33

300 (48.1)

11.7

Light heavy, heavy, or super heavy

160 (46.8)

38 (48.7)

23.75

271 (43.4)

14.0

 

 

 

χ2=1.04, p=0.59

 

χ2=0.95, p=0.62

Match Outcome

 

 

 

 

 

Win

169 (49.4)

27 (34.6)

16.0

306 (49.0)

8.8

Loss

169 (49.4)

51 (65.4)

30.2

306 (49.0)

16.7

Draw

4 (1.2)

0 (0)

0.0

12 (1.9)

0.0

 

 

 

χ2=9.6, p<0.001

 

χ2=8.2, p=0.02

Type of Outcome

 

 

 

 

 

TKO or KO

158 (46.2)

42 (54.0)

26.6

240 (38.5)

17.5

Other

184 (53.8)

36 (46.2)

19.6

384 (61.5)

9.4

 

 

 

χ2=2.38, p=0.12

 

χ2=6.8, p=0.009

Rounds fought

 

 

 

 

 

1

176 (51.5)

32 (41.0)

18.2

176 (28.2)

18.2

2

76 (22.2)

19 (24.4)

25.0

152 (24.4)

12.5

3 - 5

90 (26.3)

27 (34.7)

30.0

296 (47.4)

9.12

 

 

 

χ2=5,
p=0.08

 

χ2=6.3, p=0.04