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Table 2 Radiological data of single-RSSI patients with dysphagia and controls

From: Total magnetic resonance imaging of cerebral small vessel disease burden predicts dysphagia in patients with a single recent small subcortical infarct

Variable Dysphagia
(n = 54)
Controls
(n = 254)
χ2/z P
Single-RSSI Location, n (%)
 Basal Ganglia 23(42.59) 119(46.85) χ2 = 0.10 0.75
 Thalamus 1(1.85) 35(13.78) z = 0 1.00
 Centrum Semiovale 8(14.82) 52(20.47) χ2 = 1.47 0.23
 Pons 22(40.74) 48(18.90) χ2 = 12.10 0.50 × 10− 3
Lesion in Left Hemisphere, n (%) 31(57.41) 135(53.15) χ2 = 0.32 0.57
MRI features of SVD, n (%)
 Lacunes 44(81.48) 130(51.18) χ2 = 16.64 < 1.00 × 10− 3*
 Perivascular Spaces 36(66.67) 77(30.31) χ2 = 25.34 < 1.00 × 10− 3*
 WMH Fazekas 2–3a 26(48.15) 65(25.59) χ2 = 10.89 1.00 × 10− 3
 Microbleeds 16(29.63) 17(6.69) χ2 = 24.49 < 1.00 × 10−3*
  1. *: p < 0.001
  2. a WMH refers to white matter hyperintensities
  3. Categorical data differences in patients and controls are represented with statistical significance based on chi-squared test (χ2 & p) or Fisher’s exact test (Z & p). Patients located in pons suffered from dysphagia more often (OR = 2.95, p = 0.50 × 10− 3), and there were no significant differences between patients located in the basal ganglia, thalamus and centrum semiovale (OR = 0.91, p = 0.75; OR = 0.00, p = 1.00; OR = 0.47, p = 0.23, respectively). There were no associations between the laterality of the single RSSI side and dysphagia (left, 57.41% vs 53.15%; p = 0.57). MRI features of SVD (including lacunes, perivascular spaces, WMH Fazekas 2–3 and microbleeds) were significantly different between single-RSSI patients with and without dysphagia