Table 2.

Age-adjusted^a papillary thyroid cancer incidence rates (per 100,000) in Asian American women by birthplace, California 1988-2004.

Ethnicity	Foreign-born				US-born
	Casesb	Populationb	Rate	95% CI	Casesb	Populationb	Rate	95% CI	Rate ratioc	95% CI	p-value
Japanese	123	1,236,742	7.61	6.29 – 9.21	96	1,829,367	4.90	3.94 – 6.01	1.55	1.17 – 2.08	0.002
Chinese	440	5,626,259	6.22	5.64 – 6.89	183	2,359,603	12.90	10.97 – 15.06	0.48	0.40 – 0.59	<0.001
Korean	231	2,306,719	8.48	7.39 – 9.77	24	607,767	14.08	7.49 – 23.77	0.60	0.35 – 1.16	0.13
Vietnamese	311	2,524,663	11.31	10.01 – 12.82	*				*
Filipina	956	5,577,737	13.26	12.42 – 14.18	144	2,231,765	17.84	13.97 – 22.47	0.74	0.58 – 0.96	0.02

^aStandardized to the 2000 United States standard million population.

^b17 year aggregate.

^cRatio of incidence rate for foreign-born to rate for US-born.

^*Rates are unstable due to the small number of cases.