Table 1 The mean height, weight, and head circumference of Korean achondroplasia patients, American achondroplasia patients, and the Korean general population at birth, 1 year, 2 years, and 3 years of age. The values shown in parentheses mean how the mean growth value of Korean achondroplasia deviated from that of the reference population
|  | Korean achondroplasia (n = 125) | Korean general population [19] | ||||
|---|---|---|---|---|---|---|
Male (n = 67) | Female (n = 58) | Male | Female | Male | Female | |
Height, cm | Â | Â | ||||
Birth | 47.2 (-2 ~ 0 SD_A, -2 ~ -1 SD_K) | 46.7 (-2 ~ 0 SD_A, -2 ~ -1 SD_K) | 50 | 50 | 49.9 | 49.1 |
1 year | 67.0 (> 2 SD_A, < -3 SD_K) | 65.3 (> 2 SD_A, < -3 SD_K) | 62 | 60 | 75.7 | 74.0 |
2 years | 75.0 (2 SD_A, < -3 SD_K) | 73.3 (2 SD_A, < -3 SD_K) | 71 | 69 | 87.1 | 85.7 |
3 years | 79.2 (0 ~ 2 SD_A, < -3 SD_K) | 77.7 (0 ~ 2 SD_A, < -3 SD_K) | 77 | 76 | 96.5 | 95.4 |
Weight, kg | Â | Â | ||||
Birth | 3.2 (-2 ~ 0 SD_A, -1 ~ 0 SD_K) | 3.0 (-2 ~ 0 SD_A, -1 ~ 0 SD_K) | 3.4 | 3.4 | 3.3 | 3.2 |
1 year | 8.3 (0 ~ 2 SD_A, -2 ~ -1 SD_K) | 7.9 (-2 ~ 0 SD_A, -1 SD_K) | 8.2 | 8.2 | 9.6 | 8.9 |
2 years | 10.7 (0 ~ 2 SD_A, -2 ~ -1 SD_K) | 10.4 (0 ~ 2 SD_A, -1 ~ -0 SD_K) | 10.1 | 10.1 | 12.2 | 11.5 |
3 years | 12.2 (-2 ~ 0 SD_A, -2 ~ -1 SD_K) | 12.0 (-2 ~ 0 SD_A, -2 ~ -1 SD_K) | 12.4 | 12.3 | 14.7 | 14.2 |
Head circumference, cm | Â | Â | ||||
Birth | 37.9 (-2 ~ 0 SD_A, 2 ~ 3 SD_K) | 35.9 (-2 ~ 0 SD_A, 1 ~ 2 SD_K) | 39 | 37.5 | 34.5 | 33.9 |
1 year | 50.0 (-2 ~ 0 SD_A, > 3 SD_K) | 49.1 (-2 ~ 0 SD_A, > 3 SD_K) | 50.5 | 49.5 | 46.1 | 44.9 |
2 years | 53.1 (-2 ~ 0 SD_A, > 3 SD_K) | 51.9 (-2 ~ 0 SD_A, > 3 SD_K) | 54.5 | 54 | 48.3 | 47.2 |
3 years | 54.2 (-2 ~ 0 SD_A, 2 ~ 3 SD_K) | 53.8 (-2 ~ 0 SD_A, > 3 SD_K) | 55 | 54.5 | 49.8 | 48.8 |