Table 1.

Characteristics of Meningioma Cases and Controls in the California Linkage Study of Early-Onset Cancers

		Case (n = 362)		Control (n = 18 100)		P
		n	%	n	%
Age at diagnosis (years)	0–4	7	1.9
	5–9	8	2.2
	10–14	19	5.2
	15–19	48	13.3
	20–24	87	24.0
	25–29	98	27.1
	30–34	79	21.8
	35–36	16	4.4
Sex	Female	207	57.2	8870	49.0	<.01
	Male	155	42.8	9230	51.0
Race/ethnicity	Non-Latino White	157	43.4	7772	42.9	.08
	Non-Latino Black	44	12.2	1588	8.8
	Latino	128	35.4	6834	37.8
	Non-Latino Asian	24	6.6	1596	8.8
	Other	9	2.5	310	1.7
Birthweight (grams)	250–2499	22	6.1	1063	5.9	.65
	2500–2999	49	13.5	2724	15.0
	3000–3499	132	36.5	6940	38.3
	3500–3999	110	30.4	5314	29.4
	4000+	49	13.5	2059	11.4
Gestational age (weeks)	22–36	33	9.1	1564	8.6	.91
	37–41	253	69.9	12 825	70.9
	42–44	41	11.3	1975	10.9
	Unknown	35	9.7	1736	9.6
Birth plurality	Singleton	359	99.2	17 713	97.9	.09
	Multiple	3	0.8	387	2.1
Birth order	1st	165	45.6	7605	42.0	.39
	2nd	109	30.1	5729	31.7
	3rd and higher	88	24.3	4766	26.3
Mode of delivery	Vaginal	279	77.1	14 472	80.0	.18
	C-section	83	22.9	3628	20.0
Year of birth	1978–1982	138	38.1	6900	38.1	1.00
	1983–1987	103	28.5	5150	28.5
	1988–1992	60	16.6	3000	16.6
	1993–2013	61	16.9	3050	16.9
Maternal age (years)	<20	46	12.7	2240	12.4	.57
	20–24	104	28.7	5322	29.4
	25–29	115	31.8	5359	29.6
	30–34	60	16.6	3552	19.6
	>=35	37	10.2	1627	9.0
Maternal education	Up to 8 years	14	3.9	954	5.3	.68
	9–11 years	22	6.1	1178	6.5
	12 years	44	12.2	2035	11.2
	13–15 years	27	7.5	1315	7.3
	16 or more years	25	6.9	1067	5.9
	Unknown	230	63.5	11 551	63.8
Mother’s place of birth	US	259	71.5	11 764	65.0	<.01
	Foreign	103	28.5	6336	35.0