Test whether the distribution of stage of disease is significantly different between Caucasian and African American women with breast cancer who are younger than 50 years of age. Please provide a p-value (two-tailed). Ignore the unstaged cases in your analysis?

Cancer

The following data are provided from the SEER Cancer Registries of the National Cancer Institute based on 17 cancer registries in the United States. Data are available for stage of disease at diagnosis for women with breast cancer by age and race as shown in Table 10.23 [11].

Table 10.23: Stage of breast cancer at diagnosis by age and race, SEER Cancer data, 1999ˆ’2005

 

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Caucasian females African American females 50+ 50+ <50 <50 (n = 8063) Stage (n= 16,300) (n= 53,060) (n=174,080) 54* 41 64 29 46 46 53 35 Localized Regional Distant 3 Unstaged *percent.