Association between JAK2 rs4495487 Polymorphism and Risk of Budd-Chiari Syndrome in China

Table 1

Baseline characteristics of enrolled cases and controls.

Variables	BCS cases; (%)	Controls; (%)	or	value
Overall	300	311
Age
Mean ± SD (year)	44.52 ± 13.40	43.17 ± 11.05	−1.570	0.116
Gender
Male	163 (54.33)	165 (53.05)	0.100	0.751
Female	137 (45.67)	146 (46.95)
Tobacco smoking
Yes	88 (29.33)	65 (20.90)	5.785	0.016
No	212 (70.67)	246 (79.10)
Alcohol consumption
Yes	70 (23.33)	86 (27.65)	1.498	0.221
No	230 (76.67)	225 (72.35)
Oral contraceptives
Yes	13 (9.49)	16 (10.96)	0.166	0.684
No	124 (90.51)	130 (89.04)

BCS: Budd-Chiari syndrome; SD: standard deviation.
adjusted for sex. adjusted for sex.