Table 2

Descriptive characteristics of respondents (n = 147)

Characteristics
Mean (SD) or n (%)

Age (missing = 1)
53.2 (16.2)
Male gender
48 (32.7)
Asthma duration

< 12 months
0
1 to 4 years
14 (9.5)
5 to 10 years
33 (22.4)
More than 10 years
100 (68.0)
English is first spoken language (missing = 2)
143 (97.3)
Difficulty of questionnaire (missing = 2)

Very
4 (2.7)
Moderately
20 (13.8)
Slightly
29 (20.0)
Not
92 (63.4)

Haughney et al. BMC Pulmonary Medicine 2007 7:16   doi:10.1186/1471-2466-7-16