|
Characteristics
|
Controls (n = 184)
|
Cases (n = 184)
|
P-value
|
|---|
|
Gender, n (%)
| | |
–
|
|
Male
|
65 (35.3)
|
65 (35.3)
|
|
Female
|
119 (64.7)
|
119 (64.7)
|
|
Age (years), n (%)
| | |
–
|
|
≤ 44
|
115 (62.5)
|
116 (63.0)
|
|
45-59
|
51 (27.7)
|
49 (26.6)
|
|
≥ 60
|
18 (9.8)
|
19 (10.4)
|
|
BMI (kg/m2, Mean ± SD)
|
23.37 ± 3.45
|
22.23 ± 2.74
|
< 0.001
|
|
Educational level, n (%)
| | |
0.746
|
|
Elementary school and below
|
18 (9.8)
|
23 (12.5)
|
|
Junior/ high school
|
88 (47.8)
|
80 (43.5)
|
|
College Degree and above
|
78 (42.4)
|
81 (44.0)
|
|
Duration of residence (years), n (%)
| | |
0.219
|
|
≤ 5
|
19 (10.3)
|
22 (12.0)
|
|
5-10
|
53 (28.8)
|
38 (20.7)
|
|
> 10
|
112 (60.9)
|
124 (67.4)
|
|
Seafood, n (%)
| | |
0.325
|
|
< 1 times/week
|
27 (14.7)
|
31 (16.8)
|
|
1-2 times/week
|
139 (75.5)
|
144 (78.3)
|
|
> 2 times/week
|
18 (9.8)
|
9 (4.9)
|
|
Smoking, n (%)
|
27 (14.7)
|
37 (20.1)
|
0.134
|
|
Drinking, n (%)
|
69 (37.5)
|
97 (52.7)
|
0.002
|
- Note: BMI Body mass index, SD Standard deviation
- P-value were derived from chi-square tests for categorical variables, Wilcoxon signed-rank test for continuous variables
