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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