Table 3

Outcomes of adjusted models in unmatched groups and PSM groups (sensitivity analysis)

OutcomeUnmatched groupsModel 1Model 2Model 3
TNKAlteplaseP valueaOR (95% CI), Adj. P valueaOR (95% CI), Adj. P valueaOR (95% CI), Adj. P value
Primary outcome
 sICH20/1113 (1.8%)55/2360 (2.33%)0.3130.98 (0.57–1.71), 0.9640.96 (0.55, 1.66), 0.8751.09 (0.61–1.95), 0.766
Secondary outcome
 Safety profile
  Any intracranial bleeding23/1113 (2.07%)109/2360 (4.62%)0.0000.49 (0.31– 0.79), 0.0030.47 (0.29–0.75), 0.0020.65 (0.40–1.06), 0.085
  PH215/1113 (1.35%)41/2360 (1.74%)0.3960.99 (0.52–1.86), 0.9660.99 (0.52–1.86), 0.9711.21 (0.64–2.28), 0.561
  Any systemic bleeding5/1113 (0.45%)3/2360 (0.13%)0.0652.48 (0.51–12.07), 0.2592.47 (0.52–11.86), 0.2584.13 (0.85–20.09), 0.079
  Death within 90 days68/1094 (6.22%)181/2208 (8.2%)0.0420.92 (0.66–1.29), 0.6360.94 (0.67–1.31), 0.7031.06 (0.74–1.52), 0.75
 Efficacy
  24-hour NIHSS score improvement ≥4 OR ≤1637/1108 (57.49%)953/2324 (41.01%)0.0001.72 (1.48–2.01), 0.0001.81 (1.54–2.11), 0.0001.12 (0.93–1.35), 0.22
  mRS at 90 days0 (0-2)
N=1094
1(0-3)
N=2208
0.0000.64 (0.55, 0.74), 0.0000.65 (0.56–0.76), 0.0001.11 (0.94–1.32), 0.216
  mRS=0–1 at 90 days788(72.03%)1417 (64.18%)0.0001.31 (1.09–1.59), 0.0051.30 (1.07–1.58), 0.0080.82 (0.66–1.02), 0.073
  mRS=0–2 at 90 days885 (80.90%)1625 (73.6%)0.0001.47 (1.19–1.81), 0.0001.47 (1.18–1.82), 0.0010.96 (0.76–1.21), 0.726
  • Model 1: Unmatched cohort adjusts for age, sex, smoking, pre-mRS, NIHSS, glucose at emergency, SBP at emergency, bridging with thrombectomy, diabetes, dyslipidemia, atrial fibrillation, heart failure, ischaemic stroke/TIA, taking antiplatelet drugs.

  • Model 2: Unmatched cohort adjusts for variables in model 1 combined with onset-to-treatment (OTT) time.

  • Model 3: Unmatched cohort excludes data from the Inner Mongolia centre, and adjusts for variables in model 1.

  • mRS, modified Rankin Scale; NIHSS, National Institutes of Health Stroke Scale; PH2, parenchymal haemorrhage type 2; PSM, propensity score matching; SBP, systolic blood pressure.