5% Population sample | All twins | DZSS | MZ | DZOS | UZ | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
N | Per cent* | Mean | SD | (n=48 887) | Mean | SD | (n=18 426) | (n=9636) | (n=16 710) | (n=3731) | ||||||
Sex | N | Per cent * | N | Per cent * | N | Per cent * | N | Per cent * | N | Per cent * | ||||||
Educational status† | ||||||||||||||||
Men | ||||||||||||||||
Primary | 23 550 | 32 | 8909 | 35 | 3553 | 36 | 1517 | 31 | 2882 | 34 | 957 | 43 | ||||
Secondary | 31 336 | 43 | 11 237 | 44 | 4309 | 44 | 2292 | 47 | 3834 | 45 | 802 | 36 | ||||
Tertiary | 13 722 | 19 | 4515 | 18 | 1685 | 17 | 963 | 20 | 1530 | 18 | 337 | 15 | ||||
Missing | 4072 | 6 | 800 | 3 | 310 | 3 | 128 | 3 | 208 | 2 | 154 | 7 | ||||
Total | 72 680 | 100 | 25 461 | 100 | 9857 | 100 | 4900 | 101 | 8454 | 99 | 2250 | 101 | ||||
Women | ||||||||||||||||
Primary | 31 215 | 43 | 10 182 | 44 | 3857 | 45 | 1903 | 40 | 3633 | 44 | 789 | 53 | ||||
Secondary | 23 809 | 33 | 7805 | 34 | 2868 | 34 | 1730 | 37 | 2807 | 34 | 400 | 27 | ||||
Tertiary | 14 229 | 20 | 4613 | 20 | 1696 | 20 | 1004 | 21 | 1705 | 21 | 208 | 14 | ||||
Missing | 2816 | 4 | 442 | 2 | 148 | 2 | 99 | 2 | 111 | 1 | 84 | 6 | ||||
Total | 72 069 | 100 | 23 042 | 100 | 8569 | 101 | 4736 | 100 | 8256 | 100 | 1481 | 100 | ||||
Income‡ (DKK) | ||||||||||||||||
Men | ||||||||||||||||
1st quartile | 17 348 | 24 | 88 537 | 28 373 | 5931 | 24 | 92 330 | 27 563 | 2251 | 23 | 1061 | 22 | 1929 | 23 | 690 | 31 |
2nd quartile | 17 510 | 24 | 145 676 | 25 887 | 6523 | 24 | 149 367 | 24 179 | 2563 | 26 | 1208 | 25 | 2201 | 26 | 551 | 24 |
3rd quartile | 17 976 | 25 | 191 360 | 34 863 | 6769 | 25 | 196 738 | 31 365 | 2612 | 27 | 1375 | 28 | 2246 | 27 | 536 | 24 |
4th quartile | 18 228 | 25 | 311 232 | 141 784 | 5960 | 25 | 314 180 | 225 459 | 2340 | 24 | 1218 | 25 | 2006 | 24 | 396 | 18 |
Missing | 1618 | 2 | 278 | 2 | 91 | 1 | 38 | 1 | 72 | 1 | 77 | 3 | ||||
Total | 72 680 | 100 | 25 461 | 100 | 9875 | 101 | 4900 | 101 | 8454 | 101 | 2250 | 100 | ||||
Women | 2174 | 25 | 1158 | 24 | 2200 | 27 | 538 | 36 | ||||||||
1st quartile | 18 958 | 26 | 88 201 | 26 316 | 6070 | 26 | 91 205 | 25 698 | 2316 | 27 | 1222 | 26 | 2186 | 27 | 353 | 24 |
2nd quartile | 18 219 | 25 | 142 746 | 27 689 | 6077 | 25 | 146 427 | 25 562 | 2152 | 25 | 1224 | 26 | 2106 | 26 | 313 | 21 |
3rd quartile | 17 753 | 25 | 18 942 | 36 067 | 5795 | 25 | 194 968 | 33 291 | 1882 | 22 | 1097 | 23 | 1730 | 21 | 232 | 16 |
4th quartile | 16 126 | 22 | 308 876 | 225 888 | 4941 | 22 | 312 063 | 173 113 | 45 | 1 | 35 | 1 | 34 | 0 | 45 | 3 |
Missing | 1013 | 1 | 159 | 1 | 8569 | 100 | 4736 | 100 | 8256 | 101 | 1481 | 100 | ||||
Total | 72 069 | 99 | 23 042 | 99 | 2251 | 23 | 1061 | 22 | 1929 | 23 | 690 | 31 |
*May not sum to 100 because of rounding.
†International Standard Classification of Education.
‡Average of equivalised gross household income in 1994–1995 in quartiles.
DKK, Danish crowns; DZOS, dizygotic opposite sex twins; DZSS, dizygotic same sex twins; MZ, monozygotic twins; UZ, unknown zygosity.