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Table 1 Socio-demographic characteristics of the participants and distribution of athletes who reported use/not use of supplements in the last year

From: Prevalence and patterns of dietary supplement use in elite Spanish athletes

  Total Frequency % (n)
Yes No P value
Gender
 Male* 346 67% (232) 33% (114) 0.04
 Female* 181 58% (105) 42% (76)
 Total 527 64% (337) 36% (190)
Age Range
  < 15–20 years* 111 30% (33) 70% (78) < 0.01
 21–25 years 123 65% (80) 35% (43)
 26–30 years* 106 77% (82) 23% (24)
 31–35 years 58 74% (43) 26% (15)
 36–40 years* 62 79% (49) 21% (13)
  > 41 years 66 74% (49) 26% (17)
Sport
 Body Building* 38 95% (36) 5% (2) < 0.01
 Cycling 36 86% (31) 14% (5)
 Athletics 238 77% (184) 23% (54)
 Triathlon 75 77% (58) 23% (17)
 Aquatics 31 77% (24) 23% (7)
 Weightlifting 16 75% (12) 25% (4)
 Football 8 75% (6) 25% (2)
 Volleyball 8 75% (6) 25% (2)
 Others 112 74% (83) 26% (29)
 Canoe/Kayaking 11 73% (8) 27% (3)
 Field Hockey 11 64% (7) 36% (4)
 American Football* 68 57% (39) 43% (29)
 Golf* 29 55% (16) 45% (13)
 Gymnastics* 17 53% (9) 47% (8)
 Basque pelota (jai alai)* 15 53% (8) 47% (7)
Level of competition
 National* 262 71% (262) 29% (77) < 0.01
 International* 265 57% (265) 43% (113)
Professional
 Yes* 85 75% (64) 25% (21) 0.02
 No* 438 61% (269) 39% (169)
  1. (*)The distribution was different from the value expected at p < 0.05