rs744166 Polymorphism of the STAT3 Gene Is Associated with Risk of Gastric Cancer in a Chinese Population

Table 1

Baseline characteristics of study subjects.

Characteristics	Cases (𝑁=209)	Controls (𝑁=294)	𝑃 value*
	No. (%)	No. (%)
Age (years)			0.331
<60	106 (50.7)	162 (55.1)
≥60	103 (49.3)	132 (44.9)
Sex			0.076
Male	158 (75.6)	201 (68.4)
Female	51 (24.4)	93 (31.6)
BMI^a (kg/m^2)
Mean ± SD	22.4±3.8	24.2±3.3	<0.001
Smoking status^a			<0.001
Never	71 (34.1)	154 (52.6)
Ever	137 (65.9)	139 (47.4)
Alcohol consumption			<0.001
Nondrinkers	85 (40.7)	172 (58.5)
Drinkers	124 (59.3)	122 (41.5)
Family history of cancer^ab			<0.001
No	157 (77.0)	280 (95.9)
Yes	47 (23.0)	12 (4.1)
TNM stage^a
I	14 (7.3)
II	15 (7.8)
III	142 (74.0)
IV	21 (10.9)

BMI: body mass index (weight/height²).
^∗𝑃 value from two-sample 𝑡 tests and 𝜒² tests.
aMissing data: BMI: 7; smoking: 2; family history of cancer: 7; tumor site: 17.
bFamily history of cancer: gastric, esophageal, liver, colorectal, and other cancers.