Table 2

Occupational non-farm chlorinated solvent exposure and glioma by gender, according to respondent status

Chlorinated solvent	Including proxy-only interviews						Excluding proxy-only interviews
	Cases		Controls		OR*	95% CI	Cases		Controls		OR*	95% CI
	No.	%	No.	%	OR*	95% CI	No.	%	No.	%	OR*	95% CI
Carbon tetrachloride
All	263	33	442	38	0.79	0.65 to 0.97	141	32	428	38	0.82	0.64 to 1.06
Men	193	42	302	47	0.85	0.66 to 1.08	107	44	291	47	0.95	0.69 to 1.31
Women	70	21	140	27	0.72	0.52 to 1.01	34	17	137	27	0.64	0.41 to 0.99
Chloroform
All	275	34	458	39	0.77	0.64 to 0.94	153	35	446	39	0.79	0.62 to 1.01
Men	199	44	307	47	0.86	0.67 to 1.09	110	45	298	48	0.91	0.67 to 1.25
Women	76	22	151	29	0.65	0.46 to 0.90	43	22	148	29	0.62	0.41 to 0.93
Methylene chloride
All	304	38	490	42	0.80	0.66 to 0.97	169	39	475	42	0.81	0.63 to 1.03
Men	222	49	332	51	0.88	0.69 to 1.13	121	50	320	51	0.90	0.66 to 1.23
Women	82	24	158	30	0.69	0.50 to 0.95	48	24	155	30	0.69	0.46 to 1.03
Tetrachloroethylene
All	299	37	500	43	0.75	0.62 to 0.91	166	38	483	42	0.78	0.61 to 0.99
Men	216	47	338	52	0.81	0.64 to 1.04	117	48	325	52	0.85	0.62 to 1.17
Women	83	24	162	31	0.66	0.48 to 0.91	49	25	158	31	0.68	0.46 to 1.00
Trichloroethane
All	304	38	503	43	0.75	0.61 to 0.90	173	39	491	43	0.74	0.58 to 0.94
Men	214	47	330	51	0.83	0.64 to 1.06	118	49	321	51	0.83	0.60 to 1.13
Women	90	26	173	33	0.64	0.47 to 0.88	55	28	170	33	0.63	0.43 to 0.93
Trichloroethylene
All	302	38	515	44	0.74	0.61 to 0.90	164	37	499	44	0.75	0.59 to 0.96
Men	221	48	335	52	0.88	0.69 to 1.12	122	50	323	52	0.97	0.71 to 1.32
Women	81	24	180	34	0.57	0.42 to 0.79	42	21	176	34	0.51	0.34 to 0.77
Any chlorinated solvent
All	359	45	570	49	0.82	0.68 to 0.99	202	46	553	48	0.86	0.68 to 1.08
Men	244	53	364	56	0.89	0.70 to 1.14	131	54	351	56	0.91	0.66 to 1.25
Women	115	34	206	39	0.73	0.54 to 0.97	71	36	202	39	0.79	0.55 to 1.13

*Adjusted for frequency matching variables (age group, sex) and age and education.