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Table 5 Factor analysis

From: Development and validation of a score for evaluating comprehensive stroke care capabilities: J-ASPECT Study

   Factor 1 Factor 2 Factor 3 Factor 4
   Neurovascular surgery and intervention Diagnostic neuroradiology Vascular neurology Neurocritical care and rehabilitation
  Proportion explained 0.43 0.25 0.19 0.14
Item No Items Standardized loadings (pattern matrix)   
3 Endovascular physicians 0.91 d -0.07 -0.04 0.12
17 Coiling of intracranial aneurysm 0.89 -0.11 0.04 0.15
18 Intra-arterial reperfusion therapy 0.88 0.00 0.10 -0.05
22 Interventional services coverage 24/7 0.80 -0.09 0.05 0.23
14 Carotid endarterectomy 0.76 0.24 -0.01 -0.10
16 Hematoma removal/draining 0.75 0.37 0.06 -0.16
15 Clipping of intracranial aneurysm 0.73 0.37 0.08 -0.16
2 Neurosurgeons 0.69 0.43 0.02 -0.22
6 Rehabilitation therapy 0.59 0.07 -0.63 0.18
21 Operating room staffed 24/7 0.59 0.28 0.00 0.18
7 Stroke rehabilitation nurses 0.34 -0.36 0.21 0.20
8 CTa -0.03 0.89 -0.21 0.34
11 CT angiography 0.08 0.84 0.06 -0.17
10 Digital cerebral angiography 0.36 0.70 0.08 -0.10
9 MRIb with diffusion 0.03 0.59 0.23 -0.06
20 Intensive care unit -0.06 0.50 0.17 0.22
13 TCDc 0.02 0.15 0.71 0.04
12 Carotid duplex ultrasound -0.31 0.26 0.72 0.16
25 Professional education 0.23 -0.15 0.63 -0.23
24 Community education 0.21 -0.17 0.56 0.07
23 Stroke registry 0.24 -0.08 0.52 0.10
19 Stroke unit 0.23 -0.05 0.49 0.06
1 Neurologists -0.02 -0.02 0.02 0.85
5 Physical medicine and rehabilitation 0.10 -0.09 0.00 0.72
4 Critical care medicine -0.09 0.25 0.14 0.55
  1. acomputed tomography; bmagnetic resonance imaging; ctranscranial Doppler; dvalues > 0.300 are shown in bold font