Table 2. Prevalence and gender and age distribution of congenital heart disease (CHD) in 4 ethnic groups.
| Uygur | Han | Kazak | Hui | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Age, yr | n | CHD [n (‰)] | n | CHD [n (‰)] | n | CHD [n (‰)] | n | CHD [n (‰)] | χ2, P value |
| Boys | |||||||||
| 0–6 | 571 | 28 (49.0)* | 214 | 2 (9.3) | 40 | 1 (25.0) | 27 | 4 (148.1)* | 0.001 |
| 7–12 | 3799 | 37 (9.7) | 625 | 3 (4.8) | 468 | 4 (8.5) | 184 | 3 (16.3) | 0.217 |
| 13–18 | 733 | 15 (20.5) | 223 | 0 (0) | 194 | 5 (25.8)* | 105 | 3 (28.6)* | 0.044 |
| χ2, P value | 0.001 | 0.154 | 0.282 | 0.062 | |||||
| Girls | |||||||||
| 0–6 | 599 | 45 (75.1)* | 175 | 2 (11.4) | 57 | 0 (0) † | 31 | 0 (0) | 0.773 |
| 7–12 | 4163 | 43 (10.3) | 564 | 7 (12.4) | 426 | 3 (7.0) | 209 | 10 (47.8) ‡ | 0.006 |
| 13–18 | 583 | 17 (29.2)* | 223 | 0 (0) | 216 | 3 (13.9) | 101 | 5 (49.5)* | 0.044 |
| χ2, P value | 0.001 | 0.202 | 0.252 | 0.339 | |||||
| Both boys and girls | |||||||||
| 0–6 | 1170 | 73 (62.4)* | 389 | 4 (10.3) | 96 | 1 (10.4) † | 58 | 4 (68.9)* | 0.016 |
| 7–12 | 7962 | 80 (10.0) | 1189 | 10 (8.4) | 894 | 7 (7.8)‡ | 393 | 13 (33.1)‡ | 0.004 |
| 13–18 | 1316 | 32 (24.3)* | 445 | 0 (0) | 410 | 8 (19. 1)* | 206 | 8 (38.8)* | 0.004 |
| χ2, P value | <0.001 | 0.029 | 0.210 | 0.390 | |||||
| Total | 10448 | 185 (17.7) | 2024 | 14 (6.9) | 1401 | 16 (11.4) | 657 | 25 (38.1) | <0.01 |
*P<0.05 vs. Han in the same age group
†P<0.05 vs. Uygur in the same age group
‡P<0.05 vs. other age groups in the same gender.