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Table 2 Baseline characteristics by WHtR groups

From: Association of body mass index and waist-to-height ratio with outcomes in ischemic stroke: results from the Third China National Stroke Registry

Characteristics

WHtR groups

P-value

P for linear trend

 < 0.47

0.47- < 0.52

0.52- < 0.57

 ≥ 0.57

N

1169

1316

1190

1130

  

Age (years), median (IQR)

65 (57–74)

64 (56–72)

63 (55–70)

63 (55–71)

 < 0.0001

 < 0.0001

Male, N (%)

824 (70.49%)

943 (71.66%)

790 (66.39%)

657 (58.14%)

 < 0.0001

 < 0.0001

Ethnicity(Han), N (%)

1140 (97.52%)

1264 (96.05%)

1130 (94.96%)

1049 (92.83%)

 < 0.0001

 < 0.0001

Stroke history, N (%)

192 (16.42%)

269 (20.44%)

237 (19.92%)

234 (20.71%)

0.0297

0.0191

Medical comorbidities, N (%)

 Diabetes mellitus

279 (23.87%)

274 (20.82%)

268 (22.52%)

286 (25.31%)

0.0558

0.2682

 Atrial fibrillation

111 (9.50%)

108 (8.21%)

102 (8.57%)

63 (5.58%)

0.0042

0.0016

 Myocardial infarction

19 (1.63%)

14 (1.06%)

22 (1.85%)

18 (1.59%)

0.4208

0.6407

 Hypertension

711 (60.82%)

819 (62.23%)

776 (65.21%)

801 (70.88%)

 < 0.0001

 < 0.0001

 Lipid metabolism disorders

64 (5.47%)

71 (5.40%)

94 (7.90%)

101 (8.94%)

0.0005

 < 0.0001

Heavy drinkinga, N (%)

134 (11.46%)

188 (14.29%)

140 (11.76%)

130 (11.50%)

0.0882

0.5481

Current smoker, N (%)

315 (26.95%)

419 (31.84%)

359 (30.17%)

296 (26.19%)

0.0054

0.4982

Body mass index, median (IQR)

22.84 (20.76–24.80)

23.44 (21.72–25.12)

24.68 (23.05–26.36)

26.71 (24.49–29.05)

 < 0.0001

 < 0.0001

TOAST subtypes, N (%)

 Large-artery atherosclerosis

281 (24.04%)

347 (26.37%)

298 (25.04%)

298 (26.37%)

0.0575

 

 Small-vessel occlusion

233 (19.93%)

270 (20.52%)

269 (22.61%)

276 (24.42%)

  

 Cardioembolism

97 (8.30%)

91 (6.91%)

94 (7.90%)

59 (5.22%)

  

 Stroke of other determined etiology

21 (1.80%)

21 (1.60%)

20 (1.68%)

15 (1.33%)

  

 Stroke of undetermined etiology

537 (45.94%)

587 (44.60%)

509 (42.77%)

482 (42.65%)

  

NIHSS at admission, median (IQR)

3 (2–6)

3 (2–6)

3 (2–6)

3 (2–6)

0.0832

0.0609

Intravenous thrombolysis, N (%)

143 (12.23%)

171 (12.99%)

128 (10.76%)

94 (8.32%)

0.0016

0.0007

Arterial thrombolysis or mechanical thrombectomy, N (%)

12 (1.03%)

10 (0.76%)

4 (0.34%)

2 (0.18%)

0.0274

0.0028

  1. Kruskal–Wallis test was used to compare group differences for continuous variables, and χ2 test was used for categorical variables. P for linear trend was calculated by Kendall's Tau-b correlation analysis for continuous variables or Cochran-Armitage test for categorical variables. aHeavy drinking was defined as alcohol consumption ≥ 2 standard alcohol consumption /day. WHtR, waist-to-height ratio; TOAST, Trial of Org 10172 in Acute Stroke Treatment; NIHSS, National Institutes of Health Stroke Scale
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BMC Neurology

ISSN: 1471-2377

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