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Table 2 Response categories of respondents, those invited for and those attending clinical review

From: Identification of adults with symptoms suggestive of obstructive airways disease: Validation of a postal respiratory questionnaire

Number of symptoms/risk factors

0

1–3

4

5

6

Total

All respondents

2158

3765

521

355

148

6947

Number invited for clinical review

60

60

150

105

45

420

Number who attended review (% of those invited)

26 (43.3)

30 (50.0)

75 (50.0)

53 (50.5)

18 (40.0)

202 (48.1)