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Table 3 Population fraction (PF) and ratio (PFR) by sex and age in the KIDSCREEN national surveys and the reference population from Eurostata.

From: Methods and representativeness of a European survey in children and adolescents: the KIDSCREEN study

    

Children (8–11)

Adolescents (12–18)

Adolescent PFRd,e

Countriesb

Sample (n)c

Reference population (N) a

Sex

Sample (%)

Reference population (%) a

Population

Sample (%)

Reference population (%) a

Population

 
      

Fraction ‰

PFR d

  

Fraction ‰

PFR d

 

Phone & mail

            

   AT. Austria

1,475

1,044,588

Female

18.8g

18.0

1.47

1h

35.0i

31.0

1.59

1h

1.08

   

Male

16.3

18.6

1.24

0.84

29.9

32.3

1.31

0.82

1.05

   CH. Switzerland e

1,701

675,327

Female

17.9g

18.0

2.49

1h

35.7i

30.6

2.95

1h

1.18

   

Male

16.2

18.9

2.16

0.87

30.2

32.5

2.34

0.79

1.08

   DE. Germany

1,723

10,048,086

Female

17.7

16.9

0.18

1h

33.6i

31.8

0.18

1h

1.01

   

Male

17.7

17.8

0.17

0.95

31.0

33.5

0.16

0.87

0.93

   ES. Spain

876

4,722,467

Female

16.9

16.4

0.19

1h

32.2

32.1

0.19

1h

0.97

   

Male

19.7

17.5

0.21

1.10

31.2

33.9

0.17

0.92

0.81

   FR. France

1,049

8,335,092

Female

18.9

17.3

0.14

1h

33.0i

31.6

0.13

1h

0.95

   

Male

18.7

18.1

0.13

0.94

29.5

33.0

0.11

0.86

0.87

   NL. Netherlands

1,885

2,150,420

Female

17.7

18.4

0.85

1h

33.4i

30.4

0.96

1h

1.14

   

Male

18.2

19.2

0.83

0.98

30.6

31.9

0.84

0.87

1.01

Schools

            

   EL. Greece

1,174

903,105

Female

--

--

--

--

59.7i

48.6

1.60

1h

--

   

Male

--

--

--

--

40.3

51.4

1.02

0.64

--

   HU. Hungary

3,237

1,374,408

Female

23.5g

17.2

3.21

1h

34.9i

31.8

2.59

1h

0.81

   

Male

19.1

18.0

2.50

0.78

22.5

33.0

1.61

0.62

0.64

   IE. Ireland

1,240

643,835

Female

13.6

16.5

1.62

1h

46.1i

32.1

1.16

1h

0.87

   

Male

12.3

17.3

2.82

1.74

28.0

34

1.75

1.15

0.57

Other

            

   UK. United Kingdom (phone & mail, and schools)

1,877

8,433,968

Female

24.2

18.3

0.30

1h

24.2

30.4

0.18

1h

0.60

   

Male

27.0

19.2

0.31

1.06

24.6

32.1

0.17

0.96

0.55

   PL. Poland (schools and mail)

1,715

6,421,859

Female

17.6g

15.6

0.30

1h

37.2i

33.2

0.30

1h

1.00

   

Male

15.4

16.5

0.25

0.83

29.9

34.7

0.23

0.77

0.92

   CZ. Czech Republic (MPS)

1,592

1,426,558

Female

17.7

17.0

1.16

1h

31.8

31.5

1.13

1h

0.97

   

Male

17.3

18.0

1.07

0.92

33.2

33.5

1.11

0.93

1.04

  1. a Census data provided by Eurostat; b Countries ordered by sampling method and alphabetically; c Cases with sufficient data to be able to calculate KIDSCREEN reference values. dPFR: population fraction ratio (the 95%CI for the PFR were not included;as all of them were statistically different from the reference category); eReference category: children; fCensus data for Switzerland in the year 2000, in 19 out of 26 cantons where sampling was carried out; gStatistically significant differences by sex within children (p < 0.01) ; h Reference category: female; i Statistically significant differences by sex within adolescents (p < 0.01).