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

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)