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Table 1 Perception level about ambient environments and prevalence of diseases diagnosed by the questionnaire survey

From: Health risk assessment of volatile organic compounds exposure near Daegu dyeing industrial complex in South Korea

 

Degree

Exposed group

Controlled group

Trend

N

Percent

N

Percent

p

Satisfaction with ambient environment

Foul odor

Extremely serious

347

28.23%

1

0.23%

< 0.01

Serious

309

25.14%

19

4.41%

Normal

474

38.57%

223

51.74%

Not serious

84

6.83%

151

35.03%

No problem

15

1.22%

37

8.58%

Ambient air Pollution

Extremely serious

356

29.06%

7

1.59%

< 0.01

Serious

354

28.90%

40

9.11%

Normal

457

37.31%

244

55.58%

Not serious

52

4.24%

122

27.79%

No problem

6

0.49%

26

5.92%

Satisfaction with ambient environment

Extremely dissatisfied

300

24.61%

3

0.68%

< 0.01

Dissatisfied

331

27.15%

19

4.31%

Normal

481

39.46%

196

44.44%

Satisfied

105

8.61%

192

43.54%

Very satisfied

2

0.16%

31

7.03%

Health impacts of DDIC

No

200

16.21%

202

45.70%

< 0.01

Normal

376

30.47%

139

31.45%

Slight

289

23.42%

66

14.93%

Extremely serious

369

29.90%

35

7.92%

History of diseases

Asthma

 

46

3.65%

7

1.56%

0.03

Anaphylactic rhinitis

 

141

11.18%

35

7.80%

0.04

Allergic conjunctivitis

 

62

4.92%

12

2.67%

0.05

Cardiovascular diseases

 

44

3.49%

5

1.11%

0.01

Alveobronchiolitis

 

56

4.44%

1

0.22%

< 0.01

Allergic dermatitis

 

75

5.95%

11

2.45%

< 0.01

Thyroid diseases

 

61

4.84%

10

2.23%

0.02

Cancers

 

30

2.40%

4

0.90%

0.05