Mean height for English children in 1972 and 1994, by age group, the difference, and 95% CI
| Age (years) | 1972 | 1994 | Difference in mean height | 95% CI for difference | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| No | Mean height (cm) | No | Mean height (cm) | ||||||||
| Boys | |||||||||||
| 5 | 564 | 111.95 | 462 | 112.83 | 0.89 | (0.27 to 1.50) | |||||
| 6 | 609 | 118.20 | 442 | 119.04 | 0.84 | (0.20 to 1.48) | |||||
| 7 | 649 | 123.79 | 494 | 124.92 | 1.14 | (0.50 to 1.77) | |||||
| 8 | 617 | 129.40 | 461 | 130.70 | 1.30 | (0.59 to 2.01) | |||||
| 9 | 607 | 133.64 | 387 | 136.88 | 3.24 | (2.45 to 4.04) | |||||
| 10 | 593 | 139.84 | 402 | 141.32 | 1.48 | (0.67 to 2.30) | |||||
| Girls | |||||||||||
| 5 | 570 | 111.26 | 440 | 111.35 | 0.09 | (−0.54 to 0.72) | |||||
| 6 | 585 | 117.12 | 442 | 118.41 | 1.29 | (0.64 to 1.95) | |||||
| 7 | 624 | 122.79 | 453 | 124.39 | 1.60 | (0.92 to 2.28) | |||||
| 8 | 571 | 128.33 | 403 | 129.69 | 1.36 | (0.58 to 2.13) | |||||
| 9 | 537 | 133.86 | 374 | 135.61 | 1.74 | (0.89 to 2.60) | |||||
| 10 | 576 | 139.57 | 434 | 141.36 | 1.79 | (0.93 to 2.65) | |||||