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Table 1 Demographic characteristics and sport activities of 205 study athletes.

From: Variable number of tandem repeat polymorphisms of the interleukin-1 receptor antagonist gene IL-1RN: a novel association with the athlete status

Characteristics

n = 205

Age (years), mean ± SD

25.5 ± 6.68

Body mass index (kg/m2), mean ± SD

22.3 ± 3.20

High-grade professional athletes, n (%)

53 (25.9)

Females, n (%)

139 (67.8)a

Males, n (%)

66 (32.2)b

Volleyball, n (%)

82 (40.0)

Soccer, n (%)

34 (16.6)c

Rugby, n (%)

26 (12.7)d

Triathlon, n (%)

21 (10.2)e

Basketball, n (%)

8 (3.9)

Martial arts, n (%)

6 (2.9)

Track-and field sports, n (%)

6 (2.9)

Running, n (%)

3 (1.5)

Handball, n (%)

3 (1.5)

Swimming, n (%)

3 (1.5)

Others, n (%)

13 (6.3)

  1. a4 were professional athletes
  2. b48 were professional athletes
  3. c22 were professional athletes
  4. d23 were professional athletes
  5. e8 were professional athletes