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Table 1 Sample description and variables included

From: Family composition and age at menarche: Findings from the international Health Behaviour in School-aged Children study

 

Sample

Size

Age

Age at menarche

Father at home

Mother at home

Step-Father at home

Step-Mother at home

Grand-Father at home

Grand-mother at home

Brothers at home

Sisters at home

Some-one else at home

Foster home

Psychosomatic complaints

Media consumption

Phsical Activity

Body Mass Index

Family Affluence

Unit

n

years

years

%

%

%

%

%

%

Mean

Mean

%

%

Perc.R.

Perc.R.

Perc.R.

BMI

Perc.R.

Armenia

517

15.49

 

92.1+

98.0

0.8

0.6

32.9+++

50.0+++

0.85

0.89

0.3

0.5

45.6

59.6

44.8

19.9

18.9

Austria

935

15.35

12.94

75.1

93.7

6.4

0.8

11.3

15.8

0.79

0.77

2.1

0.7

36.7

55.4

46.2

20.8

56.5

Belgium flemish)

546

15.45

12.85

70.4

88.3

13.1

5.4

5.4

7.3

0.87

0.80

1.4

0.6

40.9

53

48.1

20.4

54.5

Belgium (french)

672

15.46

12.84

68.5

92.3

13.2

3.4

2.7

3.2

1

0.99

1.4

0.9

52.8

54.4

44.9

20.3

56.4

Canada

2756

15.45

12.72

69.9

88.4

10.1

3.4

3.6

5.6

0.78

0.85

3.2

1.4

52.8

53.3

58

21.7

59.2

Switzerland

1108

15.35

12.95

77.9

95.5

7.6

2.6

4.8

7.0

0.87

0.87

1.2

0.8

48.4

40.6

47.3

20.4

55.6

Czech

775

15.45

12.95

68.7

95.1

14.7

1.4

12

17.3

0.77

0.35-

0.5

0.6

58.3

55.4

46.2

20.8

38.0

Germany

904

15.39

12.97

78.9

94.8

9.5

1.9

8.6

12.6

0.82

0.75

1.9

0.6

42.1

56.5

52.4

20.7

61.6

Denmark

649

15.65

12.93

68.5

87.7

9.9

3.4

0.7

1.1

0.91

0.88

1.5

0.8

38.6

60.8

49.2

20.4

61.5

Estonia

737

15.78+

13.14

64.0

93.8

14.6

1.6

7.6

14.9

0.7

0.71

4.3

0.4

48.8

60

41.4

20.8

48.0

England

624

15.59

12.81

64.8

89.5

9.8

1.9

3.0

5.7

1.65++

1.71+++

2.1

0.4

51.2

57

45.6

20.4

55.6

Estonia

1041

15.46

13.14

83.6

93.8

3.9

0.7

4.8

9.3

0.64

0.60

2.0

0.8

42.9

49.7

40.7

21.0

50.1

Finland

1102

15.68

12.81

75.5

92.8

10

3.4

1.3

2.2

0.96

0.92

1.8

1.1

52.0

45.3

51.3

21.0

61.2

France

1002

15.46

12.82

73.7

93.3

10.7

3.0

2.6

3.9

0.88

0.88

1.5

1.1

54.8

50.7

37

20.2

61.0

Greenland

208

15.46

12.71

57.5-

78.6---

8.6

2.3

4.7

5.8

1.38

1.27

0.0

9.5+++

39.4

38.5-

40.7

21.6

18.6

Greece

806

15.66

12.74

85.5

95.9

2.2

1.1

6.1

13.2

0.81

0.72

6.7

0.4

54.8

57.8

39.4

21.6

45.1

Croatia

1227

15.49

12.94

88.1

96.5

3.1

0.6

15.6

27.7

0.77

0.73

1.9

0.4

46.0

58.1

37.1

21.2

38.5

Hungary

934

15.48

12.91

73.1

93.2

8.8

1.4

6.1

12.9

0.79

0.78

2.3

0.8

56.4

58.8

42.8

20.8

34.9

Ireland

733

15.45

12.97

75.8

89.3

6.3

1.5

2.8

5.7

1.3

1.21

1.7

1.2

48.8

37.6-

48.7

20.7

51.9

Israel

671

15.68

13.01

87.7

95.9

2.8

1.3

2.7

5.2

1.56+

1.42+

1.0

1.9

69.5+

68.5

30.4

21.0

53.1

Iceland

1807

15.47

12.98

73.4

94.5

12.6

2.3

1.5

2.1

1.02

0.93

5.3

0.6

55.6

49.1

55

21.3

73.7

Italy

782

15.45

12.31---

82.5

93.7

2.5

0.4

7.6

13.3

0.75

0.69

1.2

0.9

64.1

50.1

33.3

21.0

49.0

Lithuania

847

15.67

 

69.6

94.9

9.2

0.6

10.2

22.5

0.68

0.65

0.0

1.8

50.4

  

20.5

30.8

Luxembourg

680

15.46

12.89

76.2

94.6

9.4

2.4

3.5

6.7

0.94

0.89

2.4

1.1

54.8

53.6

54.2

21.0

63.1

Latvia

709

15.58

13.19

61.1

93.3

14.4

1.9

7.8

21.2

0.75

0.63

2.3

0.5

48.4

55.5

47.2

20.3

35.8

Macedonia

722

15.46

13.06

88.5

92.2

0.8

0.4

26.7++

34.8+

1.2

1.24

0.7

1.7

39.7

69.3

41.2

20.7

27.3

Netherlands

727

15.45

13.00

83.2

96.5

5.3

1.9

0.6

1.2

1.43

1.37

0.7

0.1

34.8-

61.2

61.6+

20.1

62.0

Norway

628

15.51

12.94

73.2

91.0

11.7

4.1

3.2

4.2

0.99

0.97

5.4

1.3

46.8

58.9

53.8

21.0

77.8

Poland

725

15.68

13.01

83.3

96.1

4.2

0.9

11.4

22.1

0.91

0.83

3.8

0.6

54.0

64.1

40.7

20.8

34.6

Portugal

873

15.46

12.52-

79.5

93.7

6.4

1.9

6.1

10.4

0.71

0.72

8.6+

0.3

36.3

59.7

32.8

21.2

54.7

Romania

956

15.10---

13.00

79.7

95.3

4.5

0.5

12.7

20.6

0.63

0.59

2.8

1.9

57.1

69.7

34.3

20.7

24.0

Russia

928

15.42

       

0.79

0.77

  

44.4

62.1

39.2

20.0

28.7

Scotland

1335

15.54

12.72

70.0

92.2

9.4

1.6

3.0

4.1

0.88

0.86

2.2

0.4

50.0

60.5

50.3

20.7

57.3

Sweden

1031

15.49

12.79

78.0

92.0

5.6

11.1+++

1.0

1.4

1.07

1.08

0.7

1.1

56.0

58.9

50.1

20.6

67.8

Slovenia

901

15.6

12.87

83.6

95.7

5.4

1.3

16.9

25.5

0.75

0.73

4.8

0.4

33.0-

47.4

40.6

21.4

60.1

Slovakia

953

15.35

12.84

77.2

92.5

6.0

1.2

12.1

21.3

0.75

0.76

4.2

0.8

49.6

60.3

51.4

20.5

35.9

Turkey

902

15.79+

 

87.0

94.8

0.6

0.9

5.5

11.4

1.34

1.27

2.4

0.5

67.7+

53.4

27.2-

20.5

8.80-

Ukraine

1016

15.71

13.10

71.9

92.8

8.3

0.7

12.6

28.1

0.66

0.61

3.8

0.3

54.4

45.2

42.7

20.4

17.6

USA

924

15.46

12.63

61.4

87.6

13.6

4.2

4.7

8.3

1.08

1.03

8.6+

0.8

51.6

40.3

49.2

22.7+++

54.4

Wales

782

15.7

12.70

65.9

90.0

12.3

2.1

2.6

4.0

0.88

0.84

9.5++

1.0

46.0

58.3

46.6

21.4

54.3

Valid N

36,175

36.175

21.094

35.021

35.070

34.937

34.926

34.812

34.847

32.293

31.966

33.907

34.943

35.635

32.719

32.719

31.329

34.343

TOTALa

23,949

15.51

12.87

75.5

92.81

7.91

2.05

7.23

12.24

0.93

0.89

2.71

1.03

49.39

55.09

44.71

20.81

47.45

ICC

 

0.144

0.02

0.031

0.018

0.021

0.018

0.055

0.09

0.047

0.05

0.017

0.007

0.009

0.038

0.039

0.029

0.196

  1. Note. Cross-tabulation by region, Intra-class correlation (ICC), Significant differences (bold) +/− (p<,05) ++/−− (p<,01) +++/−−− (p<,001) (+ indicate above average, − below cross-regional average)
  2. aFor sample size the total is the sum of all cases, For all other variables total represents the cross-regional average (can deviate slightly from the individual average), Perc,R, represents percentiles calculated from the average standardized factor score