Distribution of tHcy among patients before and after propensity score matching
| Before matched | After matched | |||||
| Non-IAs | IAs | P | Non-IAs | IAs | P | |
| n=9831 | n=5496 | n=4951 | n=4951 | |||
| tHcy* (SD), μmol/L | 12.9 (6.3) | 14.2 (9.8) | <0.001* | 11.7 (5.4) | 14.4 (10.1) | <0.001† |
| Group tHcy, number (%) | <0.001 | <0.001 | ||||
| Low | 7647 (77.8) | 3905 (71.1) | 4155 (83.9) | 3464 (70.0) | ||
| Moderate | 1999 (20.3) | 1405 (25.6) | 739 (14.9) | 1313 (26.5) | ||
| High | 185 (1.9) | 186 (3.4) | 57 (1.2) | 174 (3.5) | ||
| Moderate+high | 2184 (22.2) | 1591 (28.9) | 796 (16.1) | 1487 (30.0) | ||
*P value based on Mann-Whitney U-test.
†P value based on Wilcoxon test.
IAs, intracranial aneurysms; tHcy, total homocysteine.