| Total | General anesthesia | Neuraxial anesthesia | P-value | |||
---|---|---|---|---|---|---|---|
 | Enrollees, n | Developmental disorders, n (%) | Enrollees, n | Developmental disorders, n (%) | Enrollees, n | Developmental disorders, n (%) | |
Total enrollees, n | 325,309 | Â | 6973 | Â | 318,336 | Â | Â |
 Years of follow-up |  |  |  |  |  |  |  |
2 years | 284,468 | 17,935 (6.30) | 6336 | 642 (10.13) | 278,132 | 17,293 (6.22) |  < 0.001 |
3 years | 237,854 | 26,784 (11.26) | 5617 | 897 (15.97) | 232,237 | 25,887 (11.15) |  < 0.001 |
4 years | 188,044 | 28,168 (14.98) | 4752 | 962 (20.24) | 183,292 | 27,206 (14.84) |  < 0.001 |
5 years | 129,569 | 24,474 (18.89) | 3291 | 796 (24.19) | 126,278 | 23,678 (18.75) |  < 0.001 |
6 years | 65,960 | 14,847 (22.51) | 1614 | 456 (28.25) | 64,346 | 14,391 (22.37) |  < 0.001 |