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Table 1: Baseline characteristics of the patients
Characteristics No. Percentage
Mean age (range) (yr) 62 (36–78) 
Sex 
 Male 50 54.9%
 Female 41 45.1%
Primary malignancy 
 Lung 36 39.6%
 Breast 13 14.3%
 Liver 5 5.5%
 Bile duct 2 2.2%
 Esophagus 11 12.1%
 Cardia and stomach 4 4.4%
 Colorectum 5 5.5%
Sarcoma 2 2.2%
 Multiple myeloma 1 1.1%
 Kidney 2 2.2%
 Ureter 3 3.3%
 Prostate 1 1.1%
 Uterus and ovary 2 2.2%
 Unknown primary 4 4.4%

Characteristics	No.	Percentage
Mean age (range) (yr)	62 (36–78)
Sex
Male	50	54.9%
Female	41	45.1%
Primary malignancy
Lung	36	39.6%
Breast	13	14.3%
Liver	5	5.5%
Bile duct	2	2.2%
Esophagus	11	12.1%
Cardia and stomach	4	4.4%
Colorectum	5	5.5%
Sarcoma	2	2.2%
Multiple myeloma	1	1.1%
Kidney	2	2.2%
Ureter	3	3.3%
Prostate	1	1.1%
Uterus and ovary	2	2.2%
Unknown primary	4	4.4%