Table 2.

Case counts and age-adjusted incidence rates of invasive first primary gastric cancer by histologic subtype, sex, age group, and nativity, and incidence rate ratios for foreign-born versus U.S.-born, in California Hispanics, 1988 to 2004

			Intestinal type				Diffuse type
Sex	Age group, y	Nativity	Cases (N)	Ratea	95% CI	Rate ratio (95% CI)	Cases (N)	Ratea	95% CI	Rate ratio (95% CI)
Male	All	U.S.-born	1,232	9.8	(9.2–10.4)	Reference	378	2.7	(2.4–3.0)	Reference
		Foreign-born	1,744	11.4	(10.9–12.0)	1.2 (1.1–1.3)	712	3.3	(3.1–3.6)	1.2 (1.1–1.4)
	25–39	U.S.-born	50	0.7	(0.5–1.0)	Reference	31	0.5	(0.3–0.6)	Reference
		Foreign-born	125	0.9	(0.7–1.1)	1.2 (0.9–1.7)	123	0.8	(0.7–1.0)	1.8 (1.2–2.9)
	40–59	U.S.-born	290	6.5	(5.8–7.3)	Reference	129	2.8	(2.4–3.4)	Reference
		Foreign-born	444	5.9	(5.4–6.5)	0.9 (0.8–1.1)	299	3.7	(3.3–4.2)	1.3 (1.1–1.6)
	60+	U.S.-born	889	47.8	(44.4–51.4)	Reference	215	11.0	(9.5–12.8)	Reference
		Foreign-born	1,174	58.5	(55.1–62.1)	1.2 (1.1–1.3)	281	13.1	(11.5–14.8)	1.2 (1.0–1.4)
Female	All	U.S.-born	606	4.2	(3.8–4.5)	Reference	358	2.1	(1.8–2.3)	Reference
		Foreign-born	1,183	6.0	(5.6–6.4)	1.4 (1.3–1.6)	785	3.0	(2.7–3.2)	1.4 (1.3–1.6)
	25–39	U.S.-born	28	0.4	(0.3–0.6)	Reference	39	0.5	(0.4–0.7)	Reference
		Foreign-born	68	0.6	(0.4–0.7)	1.4 (0.9–2.2)	138	1.1	(1.0–1.3)	2.1 (1.5–3.1)
	40–59	U.S.-born	108	2.2	(1.8–2.7)	Reference	131	2.7	(2.3–3.2)	Reference
		Foreign-born	228	2.8	(2.5–3.2)	1.3 (1.0–1.6)	323	3.9	(3.5–4.3)	1.4 (1.2–1.8)
	60+	U.S.-born	470	21.0	(19.1–23.1)	Reference	186	7.4	(6.3–8.6)	Reference
		Foreign-born	885	30.9	(28.9–33.1)	1.5 (1.3–1.7)	313	10.0	(8.9–11.2)	1.4 (1.1–1.6)

^aRates are per 100,000 person-years and age-adjusted to the 2000 U.S. standard population.