Table 1 Observed (Obs) and expected (Exp) deaths, standardised mortality ratio (SMR) and 95% CI in 3961 cotton textile workers followed up from 1970 to 1994

	Obs	Exp	SMR	95% CI
All causes	612	553.1	1.11	1.02 to 1.20
Infective	7	3.93	1.78	0.71 to 3.67
Neoplasms	226	191.3	1.18	1.03 to 1.35
All malignant	224	187.6	1.19	1.04 to 1.36
Buccal pharynx	12	6.55	1.83	0.95 to 3.20
Oesophagus	5	4.92	1.02	0.33 to 2.37
Stomach	13	13.41	0.97	0.52 to 1.66
Intestine and colon	12	11.78	1.02	0.53 to 1.78
Rectum	2	5.61	0.36	0.04 to 1.29
Liver biliary	13	11.2	1.16	0.62 to 1.98
Pancreas	13	8.93	1.46	0.77 to 2.49
Other digestive	3	3.19	0.94	0.19 to 2.75
Larynx	5	3.55	1.41	0.45 to 3.29
Lung	36	34.89	1.03	0.72 to 1.43
Other respiratory	1	1.27	0.79	0.01 to 4.38
Bone	2	0.94	2.13	0.24 to 7.68
Breast	30	25.6	1.17	0.79 to 1.67
Prostate	3	2.03	1.48	0.30 to 4.32
Bladder	9	3.27	2.75	1.26 to 5.23
Other urinary	5	4.03	1.24	0.40 to 2.90
Brain	8	4.81	1.66	0.72 to 3.28
Others	1	0.73	1.37	0.02 to 7.62
Ill-defined sites	6	2.14	2.80	1.02 to 6.10
No specificity of site	2	4.78	0.42	0.05 to 1.51
Lymphosarcoma	6	4.01	1.50	0.55 to 3.26
Hodgkin’s	3	1.82	1.65	0.33 to 4.82
Multiple myeloma	4	2.51	1.59	0.43 to 4.08
All leukaemias	9	5.95	1.51	0.69 to 2.87
Other & unspecified	2	2.79	0.72	0.08 to 2.59
Endocrine	13	16.42	0.79	0.42 to 1.35
Blood	2	1.24	1.61	0.18 to 5.82
Mental	7	3.73	1.88	0.75 to 3.87
Nervous system	8	9.88	0.81	0.35 to 1.60
Circulatory	213	200.2	1.06	0.93 to 1.22
Respiratory	20	23.62	0.85	0.52 to 1.31
Digestive	56	45.31	1.24	0.93 to 1.60
Genito-urinary	5	6.02	0.83	0.27 to 1.94
Ill-defined	9	5.43	1.66	0.76 to 3.15
Accidents	45	42.51	1.06	0.77 to 1.42