SUPPLEMENTARY TABLE 1 Unstandardized additive genetic (A), shared environmental (C) and non-shared environmental (E) variance components, split by parental education and sex (99% CIs)
A / C / ESurvey / Sex / Lowa / High / Low / High / Low / High
Netherlands Twin Register
7 / Mb / 26.1(12.1;42.1) / 24.6(13.9;37.8) / 108.5(88.1;129.4) / 91.4(74.1;109.0) / 16.4(13.3;20.7) / 11.4(9.3;14.2)
F / 22.9(14.2;33.6) / 10.1(1.3;20.1) / 60.8(47.8;73.6) / 63.9(51.9;76.0) / 8.6(7.0;10.7) / 11.9(9.8;14.7)
10 / M / 214.8(154.9;298.0) / 183.1(132.1;250.4) / 135.7(49.7;207.2) / 144.6(76.0;206.6) / 38.0(31.3;47.0) / 35.9(29.4;44.7)
F / 91.9(64.0;128.7) / 42.8(15.4;75.9) / 129.8(88.5;166.9) / 154.4(117.6;189.9) / 22.9(19.1;27.9) / 32.5(26.6;40.3)
12 / M / 236.5(183.6;301.4) / 235.8(173.9;314.6) / 147.0(81.2;205.6) / 162.7(82.9;232.7) / 53.9(46.9;62.6) / 56.0(47.4;66.9)
F / 165.6(136.4;201.4) / 92.3(61.2;130.3) / 129.3(90.8;165.1) / 173.7(132.4;212.1) / 22.2(19.5;25.4) / 37.8(32.4;44.5)
14 / M / 364.0(.2;578.3) / 199.0(.0;431.0) / 155.2(13.0;521.8) / 148.9(.0;393.4) / 388.7(314.9;496.0) / 387.3(308.0;493.2)
F / 400.6(223.9;519.2) / 173.5(.0;310.5) / 72.8(.0;245.6) / 88.2(.2;255.1) / 150.5(126.2;182.5) / 258.2(210.6;324.4)
16 / M / 604.6(27.2;981.1) / 283.4(.01;550.5) / 161.1(.0;656.3) / 90.3(.0;428.7) / 412.8(305.1;601.8) / 571.0(426.1;799.4)
F / 344.8(200.7;424.5) / 5.1(.0;363.0) / 6.4(.0;120.7) / 340.0(7.3;434.0) / 218.0(177.1;273.3) / 239.9(189.1;300.6)
18 / M / 415.1(1.1;770.2) / 198.2(.0;616.8) / 111.8(.0;555.4) / 152.3(.0;550.8) / 272.2(176.0;477.2) / 381.1(233.1;673.3)
F / 221.3(37.2;312.2) / 332.4(.1;468.9) / 11.2(.0;160.7) / .02(.0;325.2) / 202.5(154.9;273.5) / 198.7(137.2;318.0)
FinnTwin12
12 / M / .72 (.30; 1.40) / .58 (.21; 1.06) / .63 (.03; 1.03) / .41 (.03; .75) / .65 (.51; .84) / .56 (.43; .75)
F / .35 (.00; .80) / .15 (.00; .63) / 1.12 (.69; 1.54) / 1.31 (.85; 1.72) / .65 (.52; .83) / .61 (.47; .79)
14 / M / .89 (.04; 1.85) / 1.21 (.64; 1.58) / .64 (.00; 1.37) / .03 (.00; .51) / .89 (.69; 1.17) / .86 (.65; 1.14)
F / 1.52 (.21; 1.88) / .00 (.00; .56) / .04 (.00; 1.23) / .99 (.40; 1.30) / .85 (.67; 1.08) / .98 (.77; 1.22)
17 / M / 1.74 (.65; 2.46) / 1.73 (.90; 2.30) / .31 (.00; 1.29) / .21 (.00; 1.00) / .92 (.71; 1.25) / .61 (.45; .84)
F / 1.48 (.28; 1.92) / .97 (.08; 1.59) / .06 (.00; 1.16) / .40 (.00; 1.17) / 1.06 (.84; 1.38) / .82 (.62; 1.10)
FinnTwin16
16 / M / .70 (.07; 1.29) / 2.06 (1.18; 2.57) / .96 (.48; 1.50) / .06 (.00; .88) / 1.17 (.93; 1.48) / .63 (.46; .89)
F / .91 (.38; 1.44) / .84 (.09; 1.62) / .77 (.30; 1.26) / .66 (.01; 1.36) / .79 (.64; .99) / .62 (.47; .85)
17 / M / .73 (.11; 1.34) / 1.72 (.67; 2.40) / .78 (.32; 1.34) / .25 (.00; 1.21) / 1.31 (1.04; 1.65) / .73 (.53; 1.05)
F / .61 (.10; 1.16) / 1.41 (.74; 1.82) / .92 (.41; 1.40) / .12 (.00; .78) / .74 (.60; .92) / .44 (.33; .59)
18 / M / 1.17 (.25; 1.90) / 1.47 (.56; 2.12) / .50 (.00; 1.27) / .29 (.00; 1.09) / 1.04 (.81; 1.37) / .77 (.56; 1.10)
F / 1.31 (.74; 1.59) / 1.61 (.99; 2.03) / .04 (.00; .55) / .07 (.00; .64) / .78 (.64; .97) / .54 (.40; .74)
aParental education.
bM=Males, F=Females.
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SUPPLEMENTARY TABLE 2 Standardized additive genetic (A), shared environmental (C) and non-shared environmental (E) variance components, split by parental education and sex ( 99% CIs)
A / C / ESurvey / Sex / Lowa / High / Low / High / Low / High
Netherlands Twin Register
7 / Mb / .17 (.08; .28) / .19 (.11; .29) / .72 (.62; .80) / .72 (.62; .79) / .11 (.09; .14) / .09 (.07; .11)
F / .25 (.16; .36) / .12 (.02; .23) / .66 (.55; .75) / .74 (.64; .83) / .09 (.07; .12) / .14 (.11; .17)
10 / M / .55 (.41; .73) / .50 (.37; .66) / .35 (.17; .49) / .40 (.24; .52) / .10 (.08; .12) / .10 (.08; .12)
F / .38 (.27; .52) / .19 (.07; .32) / .53 (.39; .64) / .67 (.55; .77) / .09 (.08; .12) / .14 (.11; .18)
12 / M / .54 (.43; .67) / .52 (.39; .67) / .34 (.21; .44) / .36 (.21; .48) / .12 (.11; .14) / .12 (.10; .15)
F / .52 (.43; .63) / .30 (.21; .42) / .41 (.30; .50) / .57 (.46; .66) / .07 (.06; .08) / .12 (.11; .15)
14 / M / .40 (.07; .58) / .27 (.00; .53) / .17 (.02; .46) / .20 (.00; .48) / .43 (.35; .52) / .53 (.43; .64)
F / .64 (.41; .78) / .33 (.01, .55) / .12 (.00; .33) / .17 (.00; .43) / .24 (.20; .29) / .50 (.41; .61)
16 / M / .51 (.19; .72) / .30 (.00; .50) / .14 (.00; .42) / .10 (.00; .36) / .35 (.26; .47) / .60 (.47; .77)
F / .61 (.43; .69) / .01 (.00; .38) / .01 (.00; .16) / .58 (.23; .66) / .38 (.31; .47) / .41 (.33; .50)
18 / M / .52 (.06; .77) / .27 (.00; .65) / .14 (.00; .52) / .21 (.00; .57) / .34 (.23; .52) / .52 (.34; .77)
F / .51 (.21; .64) / .63 (.13; .74) / .03 (.00; .27) / .00 (.00; .41) / .47 (.36; .60) / .37 (.26; .55)
FinnTwin12
12 / M / .36 (.15; .69) / .37 (.14; .66) / .31 (.01; .49) / .26 (.02; .46) / .33 (.25; .42) / .36 (.27; .49)
F / .16 (.00; .37) / .07 (.00; .30) / .53 (.34; .68) / .63 (.42; .75) / .31 (.24; .40) / .29 (.22; .38)
14 / M / .37 (.02; .72) / .58 (.31; .69) / .27 (.00; .55) / .02 (.00; .24) / .37 (.28; .49) / .41 (.31; .54)
F / .63 (.09; .72) / .00 (.00; .28) / .02 (.00; .50) / .50 (.25; .60) / .35 (.27; .45) / .50 (.39; .62)
17 / M / .59 (.22; .76) / .68 (.35; .82) / .10 (.00; .42) / .08 (.00; .38) / .31 (.23; .42) / .24 (.17; .34)
F / .57 (.11; .68) / .44 (.04; .68) / .02 (.00; .43) / .18 (.00; .52) / .41 (.32; .52) / .37 (.28; .51)
FinnTwin16
16 / M / .25 (.03; .45) / .75 (.43; .83) / .34 (.17; .51) / .02 (.00; .31) / .41 (.32; .53) / .23 (.16; .33)
F / .37 (.15; .58) / .40 (.04; .73) / .31 (.12; .49) / .31 (.00; .61) / .32 (.26; .40) / .29 (.22; .40)
17 / M / .26 (.04; .46) / .64 (.25; .80) / .28 (.11; .46) / .09 (.00; .43) / .46 (.36; .58) / .27 (.19; .39)
F / .27 (.05; .51) / .71 (.37; .83) / .40 (.19; .60) / .06 (.00; .38) / .33 (.26; .41) / .22 (.16; .31)
18 / M / .43 (.09; .67) / .58 (.22; .77) / .19 (.00; .46) / .11 (.00; .41) / .38 (.29; .51) / .31 (.21; .44)
F / .61 (.35; .70) / .73 (.45; .82) / .02 (.00; .25) / .03 (.00; .28) / .37 (.30; .46) / .24 (.18; .34)
aParental education.
bM=Males, F=Females.
SUPPLEMENTARY TABLE 3 Percentage of non-exercisers and the P-value of comparing the low and high parental education groups by means of a one-sided chi-square test, split by sex and parental education
Males / FemalesSurvey / Low parental education / High parental education / P-value / Low parental education / High parental education / P-value
Netherlands Twin Register
7 / 16.3% / 9.7% / .001 / 14.3% / 11.1% / .003
10 / 14.9% / 11.0% / .001 / 15.5% / 10.2% / .001
12 / 16.0% / 10.6% / .001 / 16.3% / 10.5% / .001
14 / 23.1% / 14.2% / .001 / 25.8% / 15.2% / .001
16 / 28.5% / 20.6% / .001 / 35.0% / 22.5% / .001
18 / 36.9% / 34.6% / .266 / 45.4% / 34.7% / .001
FinnTwin12
12 / 26.0% / 16.8% / .001 / 39.3% / 33.9% / .006
14 / 8.4% / 5.7% / .013 / 7.6% / 4.6% / .004
17 / 13.5% / 8.3% / .001 / 9.9% / 6.7% / .007
FinnTwin16
16 / 12.5% / 11.1% / .193 / 10.4% / 7.4% / .010
17 / 12.2% / 10.1% / .085 / 9.0% / 6.5% / .023
18 / 12.8% / 10.1% / .041 / 8.6% / 7.8% / .281
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