Mean and confidence interval of the height deficit of low birth weight from adequate birth weight children divided by social class and age
| Social class | Birth weight (g) | Height at 7 y (cm) | Height at 11 y (cm) | Height at 16 y (cm) | Height at 23 y (cm) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No. | Mean | 95% CI | No. | Mean | 95% CI | No. | Mean | 95% CI | No. | Mean | 95% CI | ||||||
| I + II | < 2500 | 60 | 2.92 | 2.65 to 3.19 | 56 | 3.02 | 2.68 to 3.36 | 49 | 1.62 | 1.13 to 2.12 | 64 | 2.45 | 1.88 to 3.02 | ||||
| ⩾2500 | 1492 | 3-165 | 1522 | 3-160 | 1402 | ns | 1711 | ns | |||||||||
| IIINM | < 2500 | 39 | 4.67 | 4.31 to 5.04 | 37 | 4.84 | 4.39 to 5.29 | 33 | 4.40 | 3.71 to 5.09 | 43 | 4.16 | 3.36 to 4.96 | ||||
| ⩾2500 | 819 | 3-165 | 858 | 3-165 | 757 | 3-160 | 946 | 3-160 | |||||||||
| IIIM | < 2500 | 205 | 3.07 | 2.89 to 3.24 | 211 | 3.17 | 2.96 to 3.38 | 195 | 3.96 | 3.65 to 4.27 | 237 | 3.54 | 3.18 to 3.90 | ||||
| ⩾2500 | 3779 | 3-165 | 4072 | 3-165 | 3664 | 3-165 | 4647 | 3-165 | |||||||||
| IV + V | < 2500 | 99 | 3.66 | 3.39 to 3.93 | 96 | 3.96 | 3.64 to 4.29 | 84 | 5.28 | 4.80 to 5.76 | 113 | 3.68 | 3.13 to 4.23 | ||||
| ⩾2500 | 1632 | 3-165 | 1685 | 3-165 | 1470 | 3-165 | 1922 | 3-165 | |||||||||