Table 1 Basic phenotypic information of 1183 population-based samples.

Age (yr)*

543

28.5

16.1

640

31.0

16.7

Gender (male%)

543

53.2

-

640

49.2

-

Height (m)*

543

1.50

0.16

639

1.54

0.14

Weight (kg)*

543

44.4

13.6

639

48.6

12.8

BMI (kg/m²) ^a*

543

19.0

3.19

639

20.1

3.15

Smoke (yes%)

543

25.8

-

640

25.8

-

Education (elementary school or lower%)

367

42.8

-

492

43.7

-

Occupation (farmer%)

365

69.0

-

493

65.7

-

Dust/gas/fume Exposure (yes%)

366

11.7

-

492

10.8

-

Asthma (yes%)*

543

100

-

640

0

-

FEV1 (L)^b*

526

2.20

0.84

623

2.81

0.89

FVC (L)^c*

526

3.22

1.14

623

3.51

1.09

% Predicted FEV1*

526

83.2

18.9

623

94.0

10.0

% Predicted FVC

526

92.3

11.9

623

93.5

9.1

BHR (yes%) ^d*

432

87.3

-

546

24.0

-

Total Log IgE (IU)*

320

6.11

1.40

296

2.89

1.77

Positive Skin Reactions (yes%)^e*

427

81.0

-

590

32.2

-