Table 3.

Standardized incidence ratios (SIR) for lung cancer by sex and units for employment at least 10 years.

	Male			Female
Unit	Obs	SIR	95% CI	Obs	SIR	95% CI
Cotton textile production	6	0.62	0.23–1.34	3	1.96	0.40–5.73
Cotton textile finishing	0	-	0.00–0.88	1	1.22	0.25–5.56
Maintenance	19	1.33	0.80–2.08	0	-	-
Total	25	0.89	0.57–1.31	4	1.27	0.34–3.24