TABLE 5.

Odds ratios and 95% confidence intervals for meningioma and occupational exposure to insecticides and herbicides (women only), Phoenix, Arizona, Boston, Massachusetts, and Pittsburgh, Pennsylvania, 1994–1998^*

Occupational exposure (mg)	No. of controls (n = 415)	No. of cases (n = 149)	Odds ratio	95% confidence interval
	Ever exposed
Insecticides	225	80	1.3	0.8, 2.0
Herbicides	71	33	2.4	1.4, 4.3
	Total years exposed
Insecticides (quartiles)
Unexposed	190	69	1.0
>0–1	61	12	0.8	0.4, 1.6
>1–3	52	16	0.8	0.4, 1.8
>3–9.045	54	31	2.4	1.3, 4.5
>9.045	58	21	1.2	0.6, 2.4
			p = 0.21
Herbicides (quartiles)
Unexposed	344	116	1.0
>0–5	31	11	2.0	0.9, 4.6
>5–27	12	4	1.1	0.2, 5.7
>27–90	13	9	3.8	1.4, 10.3
>90	15	9	3.0	1.0, 8.5
			p = 0.01
	Cumulative lifetime exposure
Insecticides (quartiles)
Unexposed	190	69	1.0
>0–2.5	61	11	0.7	0.3, 1.5
>2.5–19.8	49	26	1.6	0.8, 3.2
>19.8–75.0	61	23	1.4	0.7, 2.7
>75.0	54	20	1.5	0.8, 2.9
			p = 0.23
Insecticides (quartiles), lag 10 years
Unexposed	220	72	1.0
>0–2.5	54	14	1.1	0.5, 2.3
>2.5–15	49	27	1.7	0.9, 3.3
>15–63.5	44	20	1.3	0.7, 2.7
>63.5	48	16	1.3	0.7, 2.7
			p = 0.51
Herbicides (median)
Unexposed	344	116	1.0
>0–1.25	39	16	2.1	1.0, 4.4
>27.125	32	17	2.9	1.3, 6.2
			p = 0.01
Herbicides (median), lag 10 years
Unexposed	357	117	1.0
>0–2.5	30	11	2.3	1.0, 5.2
>2.5	28	21	3.0	1.5, 6.2
			p = 0.004

^*Adjusted for age (18–29, 30–39, 40–49, 50–59, 60–69, 70–79, ≥80 years), hospital location (Phoenix, Boston, Pittsburgh), proxy interview (yes/no), race (White, non-White), marital status (married/not married), Jewish religion (yes/no), and household income in $1,000s (<15.0, 15.0–24.9, 25.0–34.9, 35.0–49.9, 50.0–74.9, ≥75.0).