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Table 2 Selected respondent characteristics by exposure zone

From: Investigating health effects in a community surrounding a road tunnel stack – a cross sectional study

 

High Exposure Zone % (95%CI)

Medium Exposure Zone % (95%CI)

Low Exposure Zone % (95%CI)

Total % (95%CI)

New South Wales % (95%CI)

General Healtha

84.7

76.7

81.5

80.5

80.7

 

(80.5 – 89.0)

(70.7 – 82.7)

(77.8 – 85.2)

(77.6 – 83.4)

(79.7–81.7)

Psychological Distressb

9.2

15.2

13.2

13.3

12.2

 

(5.8–12.7)

(9.6–20.7)

(9.7–16.7)

(10.6–16.1)

(11.4–13.1)

Current Asthmac

6.8

9.9

11.6

10.8

10.6

 

(4.0–9.7)

(4.8–15.0)

(8.1–15.1)

(8.1–13.4)

(9.8–11.3)

Environmental Worry (very worried)

15.8

13.7

11.8

12.6

N/A

 

(11.1–20.4)

(9.8–17.7)

(8.4–15.2)

(10.1–15.1)

 

Exposure Time (most time spent at address)

49.1

51.5

49.6

50.1

N/A

 

(41.2–57.0)

(44.5–58.5)

(44.3–54.9)

(46.1–54.1)

 

Foreign odour detected in past few days or past week

29.2

24.2

23.4

24.1

N/A

 

(21.6–36.9)

(17.7–30.7)

(19.2–27.7)

(20.8–27.4)

 

Awareness of survey link to M5 stack

12.6

10.8

2.2

5.2

N/A

 

(8.8–16.5)

(7.4–14.2)

(1.0–3.3)

(4.0–6.4)

 

Unflued gas or solid fuel heater

27.1

25.9

28.4

27.6

22.6

 

(20.3–33.9)

(19.7–32.0)

(23.4–33.4)

(23.9–31.3)

(20.6–24.7)

Personal Smoking (daily or occasionally)

17.9

24.8

26.6

25.4

21.4

 

(12.2–23.7)

(18.5–31.1)

(21.9–31.3)

(21.9–28.9)

(20.3–22.4)

Smoke Free Households

82.0

85.5

78.9

80.8

81.0

 

(76.3–87.8)

(80.5–90.4)

(74.5–83.3)

(77.6–84.0)

(80.0–82.0)

Garage with direct access to home

11.3

8.4

11.8

10.9

22.2

 

(6.1–16.5)

(5.0–11.8)

(8.2–15.3)

(8.4–13.5)

(20.0–24.3)

Diagnosed Chemical Sensitivity

1.4

3.6

2.4

2.6

2.9

 

(0.3–2.6)

(0.4–6.8)

(0.7–4.0)

(1.2–4.0)

(2.5–3.4)

Any Teeth and/or Gums soreness

18.5

20.1

19.0

19.2

N/A

 

(12.5–24.5)

(14.8–25.4)

(14.6–23.5)

(16.0–22.5)

 
  1. CI = Confidence interval
  2. aGeneral health rated as excellent, very good or good
  3. bKessler 6 scored at high or very high psychological distress.
  4. cBeen told by a doctor or at a hospital that they had asthma AND had symptoms of asthma or taken treatment for asthma in the past 12 months.