Table 1 Baseline characteristics of ESCC patients

From: Immunohistochemical expression and prognostic value of PD-L1 in Extrapulmonary small cell carcinoma: a single institution experience

Characteristics	Number (%)
Total patients (n)	34
Age
Median	68
Range	20–86
Sex
Male	19 (56%)
Female	15 (44%)
Stage
Limited	11 (32%)
Extensive	23 (68%)
Localization
Genitourinary	18 (53%)
Unknown primary	10 (29%)
Gastrointestinal	5 (15%)
Other (Palate)	1 (3%)

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