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Table 1 Sample characteristics of gym-goers (n = 1969)

From: Illicit Drug Use Among Gym-Goers: a Cross-sectional Study of Gym-Goers in Sweden

Sexa
 Male 63.5% (1251)
 Female 35.8% (705)
Ageb
 16–19 years 9.3% (184)
 20–29 years 41.2% (811)
 30–39 years 19.0% (375)
 40–49 years 14.3% (281)
 50–59 years 9.9% (194)
 60 years and older 5.8% (114)
Occupationc
 Employed 71.4% (1406)
 Unemployed 3.1% (62)
 Studying 19.2% (378)
 Retired 2.5% (49)
 Sick leave 0.8% (16)
 Other 2.1% (42)
Highest educational attainmentc
 Primary education 8.2% (162)
 Secondary education 42.7% (841)
 Tertiary education 31.4% (619)
Weight training frequencyc
 Never 1.1% (22)
 Less than once a week 3.8% (75)
 Once or twice a week 23.9% (470)
 Three to four times a week 47.6% (937)
 Five or more times a week 23.5% (463)
Lifetime use of doping substances
 Has ever used a doping substance 2.0% (40)
  1. aMissing information for 13 individuals
  2. bMissing information for 10 individuals
  3. cMissing information for 16 individuals