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Table 2 Univariable and multivariable logistic regression analyses to assess factors associated with PAS

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 1.023 0.990–1.057 0.177    
Gender(male) 0.905 0.437–1.873 0.787    
Smoking history 1.958 1.069–3.588 0.030* 2.067 1.089–3.924 0.026*
Drinking history 1.921 0.987–3.737 0.055    
Diagnosis(eCH) 0.748 0.151–3.697 0.722    
Duration (years) 1.018 0.979–1.058 0.371    
Family history of CH 1.889 0.424–8.411 0.404    
Coexisting other types 1.558 0.629–3.864 0.338    
Number of headache locations 1.310 1.071–1.603 0.009* 1.204 0.980–1.478 0.077
VAS 1.277 1.025–1.592 0.030* 1.169 0.912–1.497 0.217
Duration of episode       
  Less than 2 weeks 2.152 0.855–5.416 0.104    
  From 2 weeks to less than 1 month 2.810 1.214–6.501 0.016*    
  From 1 to 2 months 3.539 1.089–11.498 0.036*    
  More than 2 months 0.957 0.201–4.557 0.955    
First experience of cluster (Ref)   (Ref)    
Number of triggers 1.828 1.325–2.520 0.001* 1.798 1.264–2.558 0.001*
Number of mitigating factors 1.643 1.067–2.531 0.024* 1.340 0.842–2.132 0.217
Number of non-CAS symptoms 1.206 1.043–1.394 0.011* 1.151 0.975–1.360 0.097
  1. *p < 0.05