From: Secular changes in height, weight and body mass index in Hong Kong Children
1963 | 1993 | 2005/6 | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Age | n | Mean | SD | n | Mean | SD | n | Mean | SD | d1 | d1/yr | d2 | d2/yr |
Boys | |||||||||||||
6 | 283 | 110.7 | 5.1 | 223 | 116.0 | 5.4 | 138 | 117.9 | 4.5 | 5.3* | 0.18 | 1.9* | 0.15 |
7 | 742 | 115.5 | 5.3 | 643 | 120.6 | 5.6 | 483 | 122.9 | 5.8 | 5.1* | 0.17 | 2.2* | 0.18 |
8 | 1030 | 120.5 | 5.5 | 724 | 126.1 | 5.4 | 564 | 127.9 | 5.9 | 5.6* | 0.19 | 1.8* | 0.14 |
9 | 1076 | 125.2 | 5.7 | 634 | 131.0 | 5.8 | 640 | 133.1 | 5.7 | 5.8* | 0.19 | 2.1* | 0.16 |
10 | 1144 | 130.0 | 6.1 | 694 | 136.3 | 5.9 | 602 | 138.5 | 6.5 | 6.3* | 0.21 | 2.1* | 0.17 |
11 | 1121 | 134.8 | 6.6 | 597 | 141.6 | 6.5 | 636 | 143.5 | 7.2 | 6.8* | 0.23 | 1.9* | 0.15 |
12 | 1033 | 140.0 | 7.3 | 638 | 147.8 | 8.0 | 739 | 151.0 | 8.1 | 7.8* | 0.26 | 3.2* | 0.25 |
13 | 1052 | 147.0 | 8.2 | 642 | 155.3 | 8.6 | 647 | 158.2 | 8.5 | 8.3* | 0.28 | 3.0* | 0.22 |
14 | 1288 | 155.6 | 7.8 | 550 | 162.3 | 7.9 | 672 | 164.2 | 7.6 | 6.7* | 0.22 | 1.9* | 0.15 |
15 | 1622 | 161.5 | 6.6 | 479 | 166.9 | 6.2 | 588 | 167.9 | 6.0 | 5.4* | 0.18 | 1.0* | 0.08 |
16 | 1711 | 164.9 | 5.8 | 430 | 169.5 | 6.5 | 562 | 170.6 | 5.5 | 4.6* | 0.15 | 1.1* | 0.08 |
17 | 1370 | 166.8 | 5.3 | 442 | 169.8 | 5.8 | 572 | 171.4 | 5.9 | 3.0* | 0.1 | 1.6* | 0.12 |
18 | 874 | 167.0 | 5.1 | 311 | 170.7 | 5.9 | 468 | 171.7 | 5.5 | 3.7* | 0.12 | 1.0* | 0.08 |
Girls | |||||||||||||
6 | 282 | 110.0 | 4.7 | 211 | 115.4 | 5.5 | 128 | 117.3 | 5.0 | 5.4* | 0.18 | 1.9* | 0.15 |
7 | 742 | 114.7 | 5.1 | 553 | 119.8 | 5.1 | 488 | 120.8 | 5.3 | 5.1* | 0.17 | 0.9* | 0.08 |
8 | 970 | 120.0 | 5.6 | 647 | 125.2 | 5.6 | 471 | 127.2 | 5.5 | 5.2* | 0.17 | 2.0* | 0.15 |
9 | 1022 | 125.1 | 6.2 | 617 | 131.1 | 6.3 | 601 | 132.7 | 6.3 | 6.0* | 0.2 | 1.7* | 0.12 |
10 | 1178 | 130.5 | 6.7 | 633 | 137.1 | 6.9 | 554 | 138.4 | 6.8 | 6.6* | 0.22 | 1.3* | 0.1 |
11 | 1312 | 136.6 | 7.2 | 584 | 143.7 | 7.2 | 584 | 145.4 | 7.0 | 7.1* | 0.24 | 1.7* | 0.13 |
12 | 1340 | 144.0 | 7.5 | 579 | 149.6 | 6.7 | 734 | 151.5 | 6.4 | 5.6* | 0.19 | 1.9* | 0.15 |
13 | 1159 | 150.0 | 6.9 | 633 | 153.2 | 5.9 | 640 | 155.2 | 6.0 | 3.2* | 0.11 | 2.0* | 0.15 |
14 | 1152 | 154.0 | 6.1 | 617 | 156.3 | 5.4 | 667 | 157.0 | 5.3 | 2.3* | 0.08 | 0.8* | 0.05 |
15 | 1275 | 155.4 | 5.4 | 552 | 157.0 | 5.3 | 637 | 157.9 | 5.2 | 1.6* | 0.05 | 1.0* | 0.07 |
16 | 1267 | 155.6 | 5 | 520 | 157.3 | 5.1 | 590 | 158.4 | 5.4 | 1.7* | 0.06 | 1.1* | 0.08 |
17 | 984 | 155.6 | 4.9 | 536 | 157.8 | 5.3 | 642 | 158.7 | 5.4 | 2.2* | 0.07 | 0.9* | 0.07 |
18 | 614 | 155.6 | 4.7 | 334 | 158.3 | 5.3 | 453 | 158.7 | 5.7 | 2.7* | 0.09 | 0.4 | 0.03 |