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Table 1 Participants in the Health Survey for England 1994, 1998 and 2003

From: Chronic exposure to outdoor air pollution and diagnosed cardiovascular disease: meta-analysis of three large cross-sectional surveys

 

1994

1998

2003

All

Sampling units

720

720

720

 

Addresses selected within sampling units

12,960

13,680

13,680

40,320

Eligible addresses*

11,515

12,250

12,036

35,801

Eligible households†

11,709

12,446

12,195

36,350

Co-operating households**

9,068

9,208

8,867

27,143

Adults aged 45+ living in co-operating households

8,257

8,688

8,625

25,570

Adults aged 45+ who completed individual questionnaire

7,751

8,181

8,009

23,941

White adults aged 45+ who completed individual questionnaire

7,492

7,908

7,636

23,036

White adults with data on cardiovascular disease prevalence

7,492

7,906

7,632

23,030

  1. *ineligible addresses were those where no private households were found
  2. † at some addresses has more than one household was resident there
  3. **defined as households where at least one adult completed a questionnaire
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Environmental Health

ISSN: 1476-069X