Table 1 Groups characteristics, n = 2635

Responses

CZ

Female

321 (69.93%)

Male

138 (30.07%)

All

459

PL

Female

182 (46.31%)

<0.001

Male

211 (53.69%)

CZ– PL

All

393

CZ– SK

SK

Female

826 (46.33%)

Male

957 (53.67%)

All

1783

Variable

Country

Sex

Mean (Standard Deviation)

Friedman test

Age

CZ

Female

22.5 (±3.8)

Male

22.4 (±4.0)

All

22.5 (±3.9)

PL

Female

21.7 (±2.9)

<0.001

Male

22.5 (±5.0)

SK– PL

All

22.1 (±4.2)

SK– CZ

SK

Female

21.5 (±5.0)

Male

20.6 (±4.2)

All

21.0 (±4.6)

Height (cm)

CZ

Female

168.5 (±6.1)

Male

182.9 (±6.2)

All

172.8 (±13.0)

< 0.001

PL

Female

167.5 (±6.3)

CZ– PL

Male

180.1 (±6.7)

CZ– SK

All

174.3 9 (±15.3)

PL– SK

SK

Female

167.6 (±6.3)

Male

180.7 (±7.0)

All

174.6 (±14.1)

Weight (kg)

CZ

Female

61.6 (±9.0)

Male

79.4 (±12.2)

All

66.9 (±13)

PL

Female

63.9 (±12.3)

<0.001

Male

80.2 (±13.5)

CZ– SK

All

72.7 (±15.3)

SK

Female

62.3 (±11.1)

Male

76.5 (±13.2)

All

69.9 (±14.1)

BMI

CZ

Female

21.7 (±2.9)

Male

23.7 (±3.3)

< 0.001

All

22.3 (±3.2)

CZ– PL

PL

Female

22.8 (±4.1)

PL– SK

Male

24.7 (±4.1)

<0.018

All

23.8 (±4.2)

CZ– SK

SK

Female

22.1 (±3.6)

Male

23.4 (±3.7)

All

22.8 (±3.7)