Table 5

Association between location of non-domestic cleaning work, current asthma, and chronic bronchitis

Location of cleaning work*nCurrent asthma†Chronic bronchitis‡
Odds ratios (95% confidence intervals) relative to those who had never worked in cleaning (n=2262), adjusted for age category and smoking status.
*Subjects may appear in more than one category.
†Woken by an attack of shortness of breath in the last 12 months, or attack of asthma in the last 12 months, or current use of drugs for asthma.
‡Regular cough at least three months each year, or regularly bringing up phlegm at least three months each year.
Offices1241.0 (0.6 to 1.9)0.9 (0.5 to 1.5)
Schools and other educational centres530.6 (0.2 to 1.8)1.1 (0.5 to 2.4)
Hospitals and other health care centres342.5 (1.1 to 5.8)2.2 (1.0 to 4.8)
Shops and public buildings260.4 (0.1 to 3.0)0.6 (0.2 to 2.8)
Factories191.2 (0.3 to 5.0)0.9 (0.2 to 3.8)
Hotels and residences181.9 (0.5 to 6.6)1.9 (0.6 to 6.0)
Bars and restaurants130 (–)1.3 (0.3 to 5.8)
Flat entrances and staircases91.3 (0.2 to 10.5)1.9 (0.4 to 9.7)
Kitchens62.1 (0.2 to 17.6)3.8 (0.7 to 21.1)
Sports installations60 (–)1.7 (0.2 to 14.9)
Laboratories61.9 (0.2 to 16.7)1.1 (0.1 to 9.4)
Other locations80 (–)0.9 (0.1 to 7.5)