The Mean Proportions of the Body According To Age
Useful for judging of normal development and incidentally for diagnosing forms of infantilism:
Preceded by figures (from Quétélet) giving the growth of stature in man and in woman (it being well known that the stature is the fundamental measurement for forming the aforesaid judgments).
| Age | Males | Females |
|---|
| 0 | 0.496 | 0.483 |
| 1 | 0.696 | 0.690 |
| 2 | 0.707 | 0.780 |
| 3 | 0.860 | 0.850 |
| 4 | 0.932 | 0.910 |
| 5 | 0.990 | 0.974 |
| 6 | 1.046 | 1.032 |
| 7 | 1.112 | 1.096 |
| 8 | 1.170 | 1.139 |
| 9 | 1.227 | 1.200 |
| 10 | 1.282 | 1.248 |
| 11 | 1.327 | 1.275 |
| 12 | 1.359 | 1.327 |
| 13 | 1.403 | 1.386 |
| 14 | 1.487 | 1.447 |
| 15 | 1.559 | 1.475 |
| 16 | 1.610 | 1.500 |
| 17 | 1.670 | 1.544 |
| 18 | 1.700 | 1.562 |
| 19 | 1.706 | 1.566 |
| 20 | 1.711 | 1.570 |
| 25 | 1.722 | 1.577 |
| 30 | 1.722 | 1.579 |
| 40 | 1.713 | 1.555 |
| 50 | 1.674 | 1.536 |
| 60 | 1.639 | 1.516 |
| 70 | 1.628 | 1.514 |
| New-born child | Length of body | 0.50 m. |
| Weight | 3 kg. |
| Maximum cranial circumference | 335 mm. |
| Circumference of thorax | 350 mm. |
| Index of stature | 68 |
| Ponderal index | 28.8— |
| Age in years | 1 | 2 | 3 |
|---|
| Stature in metres | 0.696 | 0.797 | 0.860 |
| Index of stature | 65 | 63 | 62 |
| Weight in kilograms | 10 | 12 | 13.21 |
| Ponderal index | 30.9 | 28.7 | 27.5 |
| Maximum circumference of head in millimetres. | 440 | 471 | 486 |
| Age in years | 4 | 5 | 6 |
| Stature in metres | 0.932 | 0.990 | 1.046 |
| Index of stature | 60 | 59 | 57 |
| Weight in kilograms | 15 | 16.70 | 18.04 |
| Ponderal index | 26.5 | 25.8 | 25.1 |
| Maximum circumference of head in millimetres. | 496 | 503 | 508 |
| Age in years | 7 | 8 | 9 |
| Stature in metres | 1.112 | 1.170 | 1.227 |
| Index of stature | 56 | 55 | 55 |
| Weight in kilograms | 20.16 | 22.26 | 24.09 |
| Ponderal index | 24.4 | 24 | 23.5 |
| Maximum circumference of head in millimetres. | 513 | 519 | 523 |
| Age in years | 10 | 11 | 12 |
| Stature in metres | 1.282 | 1.327 | 1.359 |
| Index of stature | 54 | 53 | 53 |
| Weight in kilograms | 26.12 | 27.85 | 31 |
| Ponderal index | 23.1 | 22.8 | 23.1 |
| Maximum circumference of head in millimetres. | 527 | 531 | 535 |
| Age in years | 13 | 14 | 15 |
| Stature in metres | 1.403 | 1.487 | 1.559 |
| Index of stature | 52 | 52 | 51 |
| Weight in kilograms | 35.32 | 40.50 | 46.41 |
| Ponderal index | 23.4 | 23.1 | 23.1 |
| Maximum circumference of head in millimetres. | 539 | 543 | 547 |
| Age in years | 16 | 17 | 18 |
| Stature in metres | 1.610 | 1.670 | 1.700 |
| Index of stature | 51 | 52 | 52 |
| Weight in kilograms | 53.39 | 57.40 | 61.26 |
| Ponderal index | 23.4 | 23.1 | 23.2 |
| Maximum circumference of head in millimetres. | 551 | 555 | 561 |