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Table 4 Univariable and multivariable logistic regression analyses to assess factors associated with PES

From: Pre-attack and pre-episode symptoms in cluster headache: a multicenter cross-sectional study of 327 Chinese patients

  Univariable analysis Multivariable analysis
OR 95% CI p-value OR 95% CI p-value
Age 1.025 0.997–1.054 0.081    
Gender(male) 1.772 0.932–3.369 0.081    
Smoking history 1.355 0.793–2.314 0.267    
Drinking history 1.117 0.637–1.957 0.700    
Diagnosis(eCH) 1.091 0.221–5.375 0.915    
Duration (years) 1.035 1.003–1.068 0.033* 1.020 0.986–1.056 0.255
Family history of CH 1.017 0.326–3.169 0.977    
Coexisting other types 1.371 0.669–2.812 0.389    
Number of headache locations 0.932 0.792–1.097 0.399    
VAS 1.273 1.001–1.619 0.049* 1.189 0.928–1.524 0.171
Duration of episode       
  Less than 2 weeks 2.035 0.693–5.976 0.196    
  From 2 weeks to less than 1 month 1.735 0.628–4.793 0.288    
  From 1 to 2 months 0.784 0.207–2.968 0.720    
  More than 2 months 0.725 0.074–7.125 0.783    
First experience of cluster (Ref)   (Ref)    
Number of triggers 1.482 1.202–1.826 0.001* 1.372 1.100–1.712 0.005*
Number of mitigating factors 1.433 1.027–2.001 0.035* 1.245 0.876–1.771 0.222
Number of non-CAS symptoms 1.060 0.932–1.206 0.373    
  1. *p < 0.05