Table 4 Clinical factors associated with re-obstruction.

From: Esophageal metal stent for malignant obstruction after prior radiotherapy

 

Univariate analysis

Multivariate analysis

Odds ratio (95% CI)

P value

Odds ratio (95% CI)

P value

Age

–

0.567

0.98 (0.943–1.03)

0.444

Sex

Male/female (reference)

0.79 (0.208–3.759)

0.744

0.88 (0.232–3.31)

0.846

Radial force

High/low (reference)

0.67 (0.194–2.219)

0.589

0.83 (0.246–2.78)

0.760

Prior RT/CRT

Yes/no (reference)

1.18 (0.250–4.480)

0.753

–

–

Tumor location

Ce/Ut/Mt/Lt/Ae/anastomosis

–

0.907

–

–

Macroscopic type

Type 1/2/3/4/5

–

0.724

–

–

Degree of stenosisa

Possible/impossible (reference)

0.87 (0.158–8.955)

1

0.82 (0.154–4.32)

0.810

Stenosis length

–

0.432

0.90 (0.705–1.14)

0.366

  1. Quantitative data was compared using Mann–Whitney’s U test.
  2. Univariate analysis was compared using Fisher’s exact test.
  3. Multivariate analysis was performed using logistic regression.
  4. Ae, abdominal esophagus; Ce, cervical esophagus; Lt, lower thoracic esophagus; Mt, middle thoracic esophagus; Ut, upper thoracic esophagus.
  5. aStenosis was evaluated by passing an approximately 6 mm diameter nasal endoscope.
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