| Height cm | Predicted LCI | ULN of LCI |
| 55 | 7.33 | 8.67 |
| 60 | 7.22 | 8.54 |
| 65 | 7.13 | 8.43 |
| 70 | 7.04 | 8.33 |
| 80 | 6.91 | 8.17 |
| 100 | 6.73 | 7.96 |
| 120 | 6.60 | 7.81 |
| 140 | 6.52 | 7.71 |
| 160 | 6.45 | 7.63 |
As a broad approximation, 55 cm represents average height (50th centile) at 5 weeks, 60 cm at 3 months, 70 cm at 9 months, 80 cm at 18 months, 100 cm at 4 years, 120 cm at 7 years and 140 cm at 10 years. After the age of 10 years, height becomes highly dependent on sex as well as age, the average height of an 18-year-old male and female being 177 and 164 cm, respectively.