Table 3: Self-reported lung symptoms among demolition workers, insulators and carpenters compared to hospital porters. Adjusted odds ratio* (OR) and 95% confidence interval (CI).

n = number of persons who answered 'yes' (% of answers) Demolition workers Insulators Carpenters Hospital porters Total
N = 141 N = 149 N = 296 N = 313 N = 899
n (%) OR 95 % CI n (%) OR 95 % CI n (%) OR 95 % CI n (%) OR n (%)
Coughing more than average 38 (28) 2.2 1.2-3.8 22 (15) 1.2 0.7-2.2 37 (13) 1.5 0.9-2.5 35 (11) 1 132 (15)
Cough and sputum daily for three months per year for two years 22 (16) 2.0 1.0-3.9 14 (10) 1.5 0.7-3.0 22 (8) 1.7 0.9-3.3 19 (6) 1 77 (9)
Breathlessness walking fast or uphill 46 (34) 1.5 0.9-2.4 51 (34) 1.7 1.1-2.6 53 (18) 0.9 0.6-1.4 74 (24) 1 224 (25)