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Table 1 Sample characteristics and associations between non-players, team sports and soccer players and potential confounders (N= 9,886)

From: Heavy episodic drinking and soccer practice among high school students in Brazil: the contextual aspects of this relationship

   Non-players(n= 4,783) wgt% (95% CI) Team Sportsa(n= 1,788) wgt% (95% CI) Soccer(n= 3,315) wgt% (95% CI) p value
  n (total)     
Age (years)      
14 1016 8.0 (6.6–9.6) 14.3 (11.1–18.2) 11.1 (8.9–13.7) <0,001
15 2753 25.5 (22.7–28.4) 30.4 (26.3–35.0) 29.9 (26.8–33.1)
16 3028 30.1 (27.3–33.0) 31.1 (27.0–35.5) 29.3 (26.4–32.3)
17 2275 26.4 (23.9–29.2) 18.6 (15.5–22.2) 20.9 (18.4–23.6)
18 814 10.0 (8.6–11.6) 5.5 (4.2–7.2) 8.9 (7.3–10.8)
Gender      
Female 5687 79.0 (77.2–80.7) 73.1 (69.5–76.4) 18.4 (16.3–20.7) <0,001
Male 4177 21.0 (19.3–22.8) 26.9 (23.6–30.5) 81.6 (79.3–83.7)
Type of school      
Public 6347 84.5 (81.6–87.0) 75.0 (69.3–79.8) 81.5 (77.8–84.7) <0,001
Private 3539 15.5 (13.0–18.4) 25.1 (20.2–30.7) 18.5 (15.3–22.2)
Frequency of practice (per month)      
1 to 5 days 2614 ---- 65.6 (62.5–68.7) 45.8 (43.0–48.6) <0,001
6 to 19 days 1284 ---- 21.4 (18.7–24.4) 25.2 (22.9–27.6)
20 or more days 1103 ---- 12.9 (10.6–15.7) 29.0 (26.7–31.4)
Motivation for practice      
Pleasure 2715 ---- 80.9 (76.8–84.4) 76.3 (73.4–79.0) <0,001
Keep fit or health reasons 558 ---- 15.6 (12.8–18.8) 14.7 (12.7–17.0)
Profession 214 ---- 3.5 (2.0–6.1) 9.0 (6.8–11.7)
Heavy episodic drinking last month      
No 8232 83.3 (81.1–85.3) 86.1 (82.9–88.8) 79.1 (76.5–81.4) <0,001
Yes 1654 16.7 (14.7–18.8) 13.9 (11.2–17.1) 21.0 (18.6–23.6)
Frequency of heavy episodic drinking last month     
1 to 2 times 1008 60.0 (54.6–65.2) 71.8 (61.7–80.1) 54.8 (49.5–59.9) 0,041
3 to 5 times 404 24.7 (20.4–29.6) 17.3 (11.2–25.6) 25.9 (22.2–30.0)
6 or more times 242 15.3 (12.2–19.2) 11.0 (6.3–18.4) 19.3 (14.8–24.8)
Type of drink b      
Beer 2031 69.4 (65.7–72.8) 61.4 (55.1–67.4) 69.4 (65.3–73.3) 0,021
Vodka 456 11.4 (9.6–13.5) 17.3 (12.9–22.8) 15.4 (12.2–19.3)
Other beverages 516 19.3 (16.3–22.6) 21.3 (16.2–27.5) 15.2 (11.9–19.1)
Where they drink b      
At home or relatives houses 780 33.3 (29.4–37.5) 30.4 (24.2–37.3) 27.0 (22.7–31.7) 0,120
Nightclub or bars 1223 44.4 (40.2–48.6) 46.3 (39.3–53.5) 51.5 (47.2–55.8)
Friend’s houses 646 22.3 (19.0–26.0) 23.3 (18.4–29.1) 21.6 (18.5–25.0)
With whom they drink b      
Alone 100 2.9 (1.9–4.5) 3.3 (1.7–6.4) 4.3 (2.7–6.7) 0,006
Relatives 1257 46.7 (42.9–50.6) 46.9 (40.0–53.8) 37.1 (32.9–41.6)
Friends 1604 50.4 (46.5–54.2) 49.8 (43.0–56.7) 58.6 (54.0–63.1)  
  1. wgt - weighted.
  2. a Basketball, volleyball or handball.
  3. b Multiple answers question.