Pathway-Driven Approaches of Interaction between Oxidative Balance and Genetic Polymorphism on Metabolic Syndrome
Table 1
Baseline characteristics of this study by OBS quantile.
Characteristics
Q1 ()
Q2 ()
Q3 ()
Q4 ()
trend
Age (years)
<0.001
Sex
<0.001
Male
1432 (69)
569 (49)
817 (37)
199 (22)
Female
637 (31)
600 (51)
1378 (63)
711 (78)
Region
<0.001
Rural (Ansung)
1194 (58)
618 (53)
989 (45)
419 (46)
Urban (Ansan)
875 (42)
551 (47)
1206 (55)
491 (54)
BMI
0.105
Education (years)
<0.001
Elementary school or less
261 (14)
300 (12)
98 (9)
88 ()
Middle school graduate
814 (44)
1122 (46)
475 (44)
420 (44)
High school or higher
770 (42)
1036 (42)
503 (47)
440 (47)
Monthly income
<0.001
<1000
724 (40)
876 (36)
318 (30)
259 (27)
1000–2000
422 (23)
550 (23)
238 (22)
200 (21)
≥2000
682 (37)
450 (41)
516 (48)
486 (52)
Total energy intake (kcal/day)
<0.001
Equal weight method; US dollar in 2014; for linear trend was determined by the general linear model for continuous variables and by test for categorical variables. Total energy intake was calculated using food frequency questionnaires.