Table 1 General characteristics of study population and geometric means of urinary 3-PBA according to general characteristics

Total

3671

1.83

2.71

Sex

 Male

1838

1.59

2.66

 Female

1833

2.10

2.70

Age

 19–29

448

0.95

2.41

 30–39

696

1.25

2.50

 40–49

835

1.69

2.37

 50–59

902

2.42

2.46

 60≤

790

2.91

2.78

Region

 Metropolitan area and Gangwon

1467

1.68

2.71

 Chungchong

458

1.85

2.59

 Honam

466

2.39

2.77

 Yongnam

1185

1.86

2.72

 Jeju

95

1.36

1.99

Current Smoking

 No

2803

1.95

2.73

 Yes

868

1.47

2.56

Current Drinking

 No

1478

2.16

2.72

 Yes

2193

1.63

2.66

Regular Exercise

 No

2048

1.83

2.76

 Yes

1060

1.93

2.65

 Irregular exercise

563

1.64

2.60

Education

 Middle school

1113

2.90

2.69

 High school

1245

1.80

2.51

 College

1313

1.25

2.47

BMI(kg/m²)

  < 18.5

100

1.28

2.88

 18.5 to < 23

1232

1.63

2.79

 23 to < 25

886

1.85

2.68

 25 ≤

1453

2.05

2.60

Use of Mosquitocide

 No

826

1.58

2.63

 Only summer

2798

1.90

2.73

 All year around

36

2.06

2.22

 Summer, winter

11

1.83

2.10

Job Classification

 Skilled agricultural and fishery workers

384

2.71

3.05

  ^aIndoor worker

1103

1.48

2.54

  ^bOutdoor worker

846

1.78

2.44

  ^cOthers

1338

1.97

2.80