Table 2 Clinical outcomes after interventional treatment

Average times of admissions

2.0 (1.0, 4.5)

2.0 (1.0, 4.3)

3.0 (1.0, 5.0)

Mean hospitalization days

17.0 (9.3, 21.0)

17.0 (8.7, 22.1)

11.8 (9.5, 21.0)

Total hospitalization days

37.0 (21.0, 75.4)

38.5 (21.8, 87.8)

33.9 (18.0, 70.8)

Dysphagia score before treatment

3.5 (3.0, 4.0)

3.0 (3.0, 4.0)

4.0 (3.0, 4.0)

Dysphagia score during follow up

0.0 (0.0, 3.0)

0.0 (0.0, 0.8)

3.0 (0.0, 4.0) ^a

Normal diet when discharge

22 (59.5%)

20 (76.9%)

2 (18.2%) ^a

Normal diet during follow up

28 (75.7%)

22 (84.6%)

6 (54.5%) ^a

Decrease/disappear in abscess cavity

21 (56.8%)

17 (65.4%)

4 (36.4%)

Duration for abscess cavity decrease

114.5 (67.0, 214.5)

173.0 (108.0, 337.0)

93.5 (53.5, 185.5)

Median survival (months)

13.2

14.8

13.2