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Table 1 Dietary supplement - nutrition factors and Kruskal-Wallis differences between studied groups

From: Dietary supplementation and doping-related factors in high-level sailing

 

A

C

KW

O

NO

KW

C1

C2

KW

f(%)

f(%)

(p)

f(%)

f(%)

(p)

f(%)

f(%)

(p)

Self-determined knowledge on nutrition and dietary supplements

I have no knowledge (1)

2(4.5)

0(0.0)

0.12 (0.73)

0(0.0)

2(15.4)

0.5 (0.48)

2(6.9)

0(0.0)

0.15 (0.69)

Poor (2)

9(20.5)

11(32.4)

7(22.6)

2(15.4)

6(20.7)

3(20.0)

Average (3)

22(50.0)

15(44.1)

16(51.6)

6(46.2)

12(41.4)

10(66.7)

Good (4)

10(22.7)

6(17.6)

7(22.6)

3(23.1)

8(27.6)

2(13.3)

Excellent (5)

1(2.3)

2(5.9)

1(3.2)

0(0.0)

1(3.4)

0(0.0)

Consumption of the DS*

No (1)

10(22.7)

8(23.5)

1.51 (0.22)

8(25.8)

2(15.4)

1.63 (0.20)

9(31.0)

1(6.7)

0.9 (0.34)

Yes. but not regularly (2)

17(38.6)

6(17.6)

13(41.9)

4(30.8)

9(31.0)

8(53.3)

Yes. regularly (3)

17(38.6)

20(58.8)

10(32.3)

7(53.8)

11(37.9)

6(40.0)

Trust in coaches regarding DS

Yes

26(59.1)

  

19(61.3)

4(30.8)

 

15(51.7)

11(73.3)

 

No

18(40.9)

12(38.7)

9(69.2)

14(48.3)

4(26.7)

Trust in physicians regarding DS

Yes

24(54.5)

  

19(61.3)

5(38.5)

 

15(51.7)

9(60.0)

 

No

20(45.5)

12(38.7)

8(61.5)

14(48.3)

6(40.0)

Primary source of information on DS

I have no knowledge on this problem

6(13.6)

7(20.6)

 

2(6.5)

4(30.8)

 

5(17.2)

1(6.7)

 

Coach

10(22.7)

8(23.5)

10(32.3)

0(0.0)

5(17.2)

5(33.3)

Formal education (school. professional seminars. etc.)

7(15.9)

4(11.8)

2(6.5)

5(38.5)

5(17.2)

2(13.3)

Self-education (Internet. literature. booklets. etc.)

21(47.7)

15(44.1)

17(54.8)

4(30.8)

14(48.3)

7(46.7)

  1. LEGEND: A – athletes; C – coaches; O – Olympic class athletes; NO – Non-Olympic class athletes; C1 – single crew; C2 – double crew; frequencies – f, percentage - %; KW - Kruskall-Wallis test; p – statistical significance for df = 1; number in parentheses presents ordinal values for each ordinal variable; * coaches were asked about DS usage of their athletes.