Comparison of gene expression profiles between primary tumor and metastatic lesions in gastric cancer patients using laser microdissection and cDNA microarray

Table 1 Characteristics of the studied patients (n = 58)

Characteristics	n (%)
Age (yr)
Range	48-68
mean ± SD	58.7 ± 3.46
Median	59
Mode	59
Gender
Male	30 (52)
Female	28 (48)
Tumor location
Gastric antrum	38 (66)
Gastric body	10 (17)
Gastric cardia	10 (17)
Anemia
Yes	48 (83)
No	10 (17)
Abdominal pain
Yes	27 (47)
No	31 (53)
Weight los
Yes	34 (59)
No	24 (41)
Occult blood test
Positive	43 (74)
Negative	25 (26)