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

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