BMC Cancer 2007, 7:201 http://www.biomedcentral.com/1471-2407/7/201 194 81 Yes Ever had colorectal No screening 76/49 39% (31%, 48%) 2* 116/25 18% (11%, 24%) 1 78 56 Ever had pap exam Yes No N<10 78% (51%, 100%) 3* * Does not meet Healthy People 2010 goal 487/234 Had mammogram / Has not had mammogram 32% (30%, 34%) Probability of not having had mammogram (95% CI) 2 Terminal node number b4RFl1eiegc,yuCeraHserivsI3Sean2pd0a0rot1iltdioern,iningccl uladsisnigficpaatpioanntdreceolfonr Jsacpraeneensinegfevmaraiale-s Recursive partitioning classification tree for Japanese females 41 years and older, including pap and colon screening varia- ble, CHIS 2001. lowest risk group was Japanese women who have ever been screened for colorectal cancer (node 1), and the highest risk group was Japanese women who have never been screened for colorectal or cervical cancer (node 3). Because screening for other cancers was selected as the only delineator of mammography screening, we con- ducted RP excluding the pap and colorectal cancer screen- ing variables (data not shown). The lowest risk groups were Japanese women with women's health issues, and women with women's health issues, a usual source of care, and who were unemployed. The resultant high risk groups were based on small numbers of people. The most discriminating explanatory variable for Filipinas (Figure 4) was ever having any pap or colorectal screening exam; 85% of women without either exam also did not have a mammogram within the past two years (node 1). Among women who have had at least one pap or colorec- tal exam, having health insurance was an important delin- 178 91 Yes Ever had pap or colorectal screening exam 176 80 Yes Has health insurance No No 2/11 85% (65%, 100%) 1* 172/70 29% (23%, 35%) 2 4/10 71% (48%, 95%) 3* * Does not meet Healthy People 2010 goal 487/234 Had mammogram / Has not had mammogram 32% (30%, 34%) Probability of not having had mammogram (95% CI) 2 Terminal node number 4RF1eigcyueraserivs4eanpdarotiltdioern,inCgHcIlSas2si0fi0c1ation tree for Filipina females Recursive partitioning classification tree for Filipina females 41 years and older, CHIS 2001. 127 117 Ever had pap exam Yes No 120/81 40% (34%, 47%) 1* 7/36 84% (73%, 95%) 2* * Does not meet Healthy People 2010 goal 487/234 Had mammogram / Has not had mammogram 32% (30%, 34%) Probability of not having had mammogram (95% CI) 2 Terminal node number b4FRl1eiegcsyu,erCaserHivs5eIaSnp2da0ro0til1tdioern,i ningccluladsisnigficpaatpioanntdreceolfoonr sKcorereanninfgemvaarlieas- Recursive partitioning classification tree for Korean females 41 years and older, including pap and colon screening varia- bles, CHIS 2001. eator, as 71% of those without health insurance did not have a mammogram (node 3). Among Korean females (Figure 5), ever having a pap exam was the most important delineator of mammography use. Among Korean women who have never had a pap exam, 84% have not had a mammogram (node 2). When RP analysis excluded pap and colorectal cancer screening var- iables (data not shown), women's health issues and health insurance type were found to be additionally important delineators. The lowest risk group was Korean women who have other women's health issues, while the highest risk group was Korean women who did not have other women's health issues and had public or no health insurance. >50 42/11 21% (10%, 32%) 2 Citizen 24/8 25% (10%, 40%) 4 Yes 79 41 Age 79 46 Has health insurance <50 No N<10 100% 1* 37 30 Employed Employment Unemployed 30 7/13 17 65% (44%, 86%) Citizenship Non-citizen 3* Status 6/9 60% (35%, 85%) 5* * Does not meet Healthy People 2010 goal 487/234 Had mammogram / Has not had mammogram 32% (30%, 34%) Probability of not having had mammogram (95% CI) 2 Terminal node number fRFeeimgcaulresesiv64e1pyaeratirtsioannidngocl dlaesrs,ifCicHatIiSon20tr0e1e for South Asian Recursive partitioning classification tree for South Asian females 41 years and older, CHIS 2001. Page 7 of 12 (page number not for citation purposes)