Table 1

Baseline characteristics of the TGA cases versus age-matched and sex-matched extraction group and absolute standardised differences after propensity score matching

Clinical valuesTGA case
(n=10 461)
Age-matched and sex-matched extraction group
(n=140 486)
Absolute standardised difference
Before PS matchingAfter 1:2 PS matching
(TGA, n=10 448)
(control, n=20 442)
Age (years)60.5±12.660.7±12.40.0180.032
Female sex7067 (67.6)93 117 (66.3)0.0270.013
Stroke risk factors
 Hypertension5161 (49.3)53 017 (37.7)0.236*0.018
 DM3772 (36.1)29 933 (21.3)0.331*0.025
 Hyperlipidaemia5815 (55.6)32 462 (23.1)0.705*0.014
 Cardiac disease
  A-Fib263 (2.5)1727 (1.2)0.0950.009
  MI262 (2.5)1536 (1.1)0.106*0.016
Depressive d/o396 (3.8)1655 (1.2)0.168*0.051
Anxiety d/o3858 (36.9)18 217 (13.0)0.575*0.045
Seizure/epilepsy73 (0.7)528 (0.4)0.0440.005
Migraine1908 (18.2)8397 (6.0)0.382*0.069
Antithrombotic user8383 (80.1)67 108 (47.8)0.716*0.009
  • Results are expressed as number (%) or mean±SD. Antithrombotics include antiplatelet agents and anticoagulants.

  • *Absolute standardised difference ≥0.1.

  • A-Fib, atrial fibrillation; DM, diabetes mellitus; d/o, disorder; MI, myocardial infarction; PS, propensity score; TGA, transient global amnesia.