Women In New Mexico Research Articles

Abstract 4213: Comparison of benign breast disease subtypes and breast cancer risk among Hispanic and non-Hispanic white women in New Mexico

Abstract Introduction: Benign breast disease (BBD) is an important breast cancer (BC) risk factor, which may be classified as non-proliferative disease (NPD), proliferative disease without atypia (PDWA), or atypical hyperplasia (AH) for risk stratification. Data related to the frequency of specific types of BBD and their relationship to BC risk in the Hispanic American population are limited. To address this knowledge gap, we compared BBD and associated BC risk among Hispanic white (HW) and non-Hispanic white (NHW) in New Mexico (NM). Methodology: A retrospective IRB-approved study was performed of women 19 years or older residing in six counties in NM (Bernalillo, Sandoval, Sante Fe, Socorro, Torrance, Cibola/Valencia) between 1996 and mid-2007 to compare the frequency of BBD subtypes and BC risk among HW and NHW. We excluded women who had a history of BC prior to BBD diagnosis or who were diagnosed with BC within 6 months after BBD biopsy. Race and ethnicity were self-reported by women at the time of biopsy. BBD was categorized as NPD, PDWA, or AH based on medical records. Incident BC (in-situ or invasive) was ascertained via linkage to the NM Surveillance Epidemiology End Results (SEER) Registry and BC risk was assessed using standardized incidence ratios (SIRs), comparing the observed number of BC events to that expected based on the NM SEER six-county race- and ethnicity-specific incidence rates, accounting for age and calendar period. Results: Our analysis included 3,870 HW and 6,996 NHW women with BBD. The HW were younger (47.1 vs. 51 years) compared to NHW. HW women had slightly more NPD (69.4% vs. 66.6%) but less PDWA (26.2% vs. 29.4%) and similar frequency of AH (4.3% vs. 3.9%) as compared to NHW. Over a median post-BBD follow-up period of 13 years (range 6 months-17 years), 644 BCs were observed (4.81% in HW and 6.55% in NHW). The observed BC risk among women with BBD was higher than population-based expected rates (SIR 1.98, 95% CI 1.82-2.13, p<0.001) and showed expected increases in risk with increasing degrees of BBD abnormality: SIR=1.90 for NPD, 2.00 for PDWA, and 3.01 for AH. Comparing BC risk by ethnic subgroups, HW women had an overall risk of BC after BBD that was statistically indistinguishable from NHW women (SIR=2.17, 95% CI 1.86-2.48 in HW women, and SIR=1.91, 95% CI 1.73-2.08 in NHW women). Within the major subgroups of the BBD findings, there were no significant differences in risk of BC after BBD for HW versus NHW women. Conclusions: In this population-based study, benign breast disease subtypes and their associated breast cancer risk were similar among the Hispanic and non-Hispanic white women. Citation Format: Kush Raj Lohani, Andrea M. Nibbe, Robert A. Vierkant, Laura M. Pacheco-Spann, Lisa R. Seymour, Celine M. Vachon, Mark E. Sherman, Amy C. Degnim, Deirdre Hill. Comparison of benign breast disease subtypes and breast cancer risk among Hispanic and non-Hispanic white women in New Mexico. [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2023; Part 1 (Regular and Invited Abstracts); 2023 Apr 14-19; Orlando, FL. Philadelphia (PA): AACR; Cancer Res 2023;83(7_Suppl):Abstract nr 4213.

Colonial New Mexican Families: Community, Church, and State, 1692–1800 by Suzanne M. Stamatov

Reviewed by: Colonial New Mexican Families: Community, Church, and State, 1692–1800 by Suzanne M. Stamatov Anna M. Nogar Colonial New Mexican Families: Community, Church, and State, 1692–1800. By Suzanne M. Stamatov. (Albuquerque: University of New Mexico Press. 2018. Pp. 256. $55.00. ISBN 978-0-826-35920-9.) Suzanne Stamatov’s instructive, well documented Colonial New Mexican Families: Community, Church, and State, 1692–1800, offers readers an even-handed view into the pragmatic interactions among New Mexicans during the second half of the Spanish colonial period. The text centers on family and community interactions—marriage, inheritance, domestic conflict—as recorded in civil and religious records. Stamatov consulted the archives of the Archdiocese of Santa Fe and the New Mexico State Archives, centering her work on U.S.-based collections pertaining to colonial New Mexico. Since this documentation arises from exchanges between individuals and institutions, the negotiations it relates pertain to processes, rules, [End Page 216] and appeals. Stamatov skillfully and selectively extrapolates conflicts and relationships from the bureaucratic shadows they cast in the archive. Colonial New Mexican Families is divided into six content chapters. The first two, “The Setting” and “Civil Authorities, Civil Law and the Family,” establish the historical context and explain the relationship between community expectations and the law. Stamatov outlines this dynamic balance: “community members in New Mexico intervened in the ‘private matters’ of neighbors, becoming involved when they perceived injustices or transgressions of community standards” (p. 28). The next four chapters explore various facets of family-church-state-community interactions: “The Sacrament of Marriage,” “Sexuality and Courtship,” “Marriage,” and “Domestic Life and Discord.” In each, the book approaches the primary documentation from the established perspective of dynamic balance between community and the law. One of the book’s strengths is in the appealing and historically accurate vignettes Stamatov crafts of out of archival materials. She opens and closes the book in this manner, with an extended exposition of a 1766 legal case brought by a grandmother, María Luisa de Aragón, against her son-in-law, who had attempted to block a marriage proposal for his daughter. Stamatov unfolds the testimonies of the two contestants, as well as reports of the villagers from the community of Tomé, where María Luisa had raised her granddaughter. Drawing historical individuals out of the record and providing them with carefully chosen detail makes what could have been a dry archival analysis lively and engaging. The tables, figures, and charts presented in the index provide a synthetic presentation of the ideas explored in the book. They include information regarding household composition, surname clusters, and data for ages of marriage. All of this is very interesting, though one might ask why there are no charts explaining household composition for homes headed by women, as widows made up a substantial proportion of the population. This small gap surprises, as Colonial New Mexican Families ably demonstrates the extent to which Hispana women in New Mexico possessed agency in their private and public affairs and employed ecclesial and civil systems to assert it. Further, Stamatov makes clear that nuevomexicanas controlled their own estates and did not suffer from the male-centered inheritance laws that would later plague the region once it came under American rule: “documentation shows that [New Mexican] parents tried to implement inheritance laws fairly and endow their male and female children equally” (p. 6). Colonial New Mexican Families is restrained in its conclusions, prudent rather than sweeping. This is one of the book’s noteworthy features: it favors a measured perspective over grand generalizations. When Stamatov asserts that “overall, people recognized that their community’s strength lay in living together peacefully . . . they interpreted the laws flexibly to avoid alienating the neighbors whom they needed in order to survive in the remote Kingdom of New Mexico” (p. 8), the argument is convincing rather than overextended. This quality makes the book an excellent [End Page 217] choice for history scholars of the Southwest, Mexico, and the Spanish colonial period, of course. However, it will also hold appeal for students and researchers in the fields of Latin American studies, gender and women’s studies, and Catholic studies. The book’s accessible...

Intimate Partner Violence and Structural Violence in the Lives of Incarcerated Women: A Mixed-Method Study in Rural New Mexico.

Intimate partner violence (IPV) is a common feature in the lives of incarcerated women returning to rural communities, enhancing their risk of mental ill-health, substance use, and recidivism. Women’s experiences of IPV intersect with challenges across multiple social–ecological levels, including risky or criminalizing interpersonal relationships, geographic isolation, and persistent gender, racial, and economic inequities. We conducted quantitative surveys and qualitative interviews with 99 incarcerated women in New Mexico who were scheduled to return to micropolitan or non-core areas within 6 months. Quantitative and qualitative data were analyzed separately and then triangulated to identify convergences and divergences in data. The findings underscore how individual and interpersonal experiences of IPV, substance use, and psychological distress intersect with broad social inequities, such as poverty, lack of supportive resources, and reluctance to seek help due to experiences of discrimination. These results point to the need for a more proactive response to the mutually constitutive cycle of IPV, mental distress, incarceration, and structures of violence to improve reentry for women returning to rural communities. Policy and treatment must prioritize socioeconomic marginalization and expand community resources with attention to the needs of rural women of color.

Quantification of Potential Inequities in Breast Cancer Incidence in New Mexico Through Bayesian Disease Mapping.

IntroductionThe incidence of breast cancer among non-Hispanic American Indian and Alaska Native (AI/AN) women varies across the United States. We applied county-level Bayesian disease mapping to quantify potential inequities in 10-year breast cancer incidence in New Mexico to better inform health equity initiatives among its non-Hispanic at-risk AI/AN population.MethodsWe used data from the Surveillance, Epidemiology, and End Results (SEER) program from 2005 through 2014 to identify new cases of breast cancer in New Mexico’s 33 counties. To account for spatial variation, a county-level Area Deprivation Index, and the small area estimation problem inherent in these data, we borrowed strength globally and locally by applying Bayesian disease mapping to the counts of age-adjusted county-level breast cancer incidence. We quantified the disparity effect, as measured by the age-adjusted rate ratio, comparing the incidence of breast cancer between at-risk non-Hispanic AI/AN and non-Hispanic White women and assessed whether the ratio differed among counties.ResultsAccounting for over-dispersion and spatial correlation among the 33 counties and a county-level Area Deprivation Index, the posterior mean of the overall age-adjusted rate ratio was 0.384 (95% credible interval, 0.253­–0.546). The age-adjusted rate of breast cancer in non-Hispanic AI/AN women was 0.38 times the corresponding age-adjusted rate for non-Hispanic White women; however, a significant reduction in breast cancer incidence was observed in 16 of the 33 counties.ConclusionThe application of Bayesian disease mapping to these data provided substantial evidence of an overall disparity in breast cancer incidence between at-risk non-Hispanic AI/AN and non-Hispanic White women in New Mexico, which was more marked than previously reported and limited to certain counties. Targeted statewide and county-level health-equity initiatives may lead to a reduction in these disparities.

Breast Cancer Screening Among Medically Underserved Women in New Mexico: Potential for Lower Recall Rates with Digital Breast Tomosynthesis.

Introduction: Digital breast tomosynthesis (DBT) may decrease recall rates (RRs) and improve positive predictive values (PPVs) and cancer detection rates (CDRs) versus full-field digital mammography (FFDM). The value of DBT has not been assessed in New Mexico's rural and minority population. Objectives of this study were to compare RRs, CDRs, and PPVs using FFDM+DBT versus FFDM in screening mammograms at the University of New Mexico between 2013 and 2016 and to qualitatively evaluate patient decision-making regarding DBT. Materials and Methods: RRs, CDRs, and PPVs with 95% confidence intervals and relative risk were calculated from 35,147 mammograms. The association between relative risk and mammography approach was tested using Pearson's chi-square test. Twenty women undergoing screening were interviewed for qualitative evaluation of decision-making. Results: From 2013 to 2016, RRs were 8.4% and 11.1% for FFDM+DBT and FFDM, respectively. The difference in RRs became more pronounced with time. No significant difference was observed in PPVs or CDRs. Qualitative interviews revealed that the majority had limited prior knowledge of DBT and relied on provider recommendations. Conclusion: In New Mexico women undergoing screening mammography, a 30% relative risk reduction in RRs was observed with FFDM+DBT. Qualitative interviews suggest that women are aware of and receptive to DBT, assuming adequate educational support. Clinical Trials.gov ID: NCT03979729.

Seasonal Influenza Vaccination Patterns Among Pregnant Women in New Mexico.

Seasonal influenza vaccination is recommended for pregnant women, but half of the pregnant women in the United States remain unvaccinated. Vaccine coverage in U.S.-Mexico border states has not been examined in depth even though risk factors for low vaccine coverage exist in these states, especially in the counties bordering Mexico. Using 2012-2014 New Mexico (NM) Pregnancy Risk Assessment and Monitoring System data, this study examined the weighted annual seasonal influenza vaccination rates and the relationship of various factors to vaccination among NM residents with a live birth during those years. Among respondents, 53.8% were Hispanic, 15.7% were Native American, and 30.5% were non-Hispanic White. The vaccination rate in NM increased from 49.0% in 2012 to 64.8% in 2014. The adjusted odds of vaccination were higher among women whose health care provider recommended/offered vaccination during the year prior to delivery compared to women whose provider did not (AOR = 11.92, 95% confidence interval [CI: 9.86, 14.42]) and among those living in the U.S.-Mexico nonborder counties compared to those living in the border counties (AOR = 1.23, 95% CI [1.18, 1.25]). Efforts to increase the vaccination rate among pregnant women in border states should concentrate on health care providers and the highest risk women, such as those resident in the border region.

Alcohol Consumption and Chronic Liver Disease Mortality in New Mexico and the United States, 1999-2013.

Current chronic liver disease (CLD) mortality surveillance methods may not adequately capture data on all causes of CLD mortality. The objective of this study was to calculate and compare CLD death rates in New Mexico and the United States by using both an expanded definition of CLD and estimates of the fractional impact of alcohol on CLD deaths. We defined CLD mortality as deaths due to alcoholic liver disease, cirrhosis, viral hepatitis, and other liver conditions. We estimated alcohol-attributable CLD deaths by using national and state alcohol-attributable fractions from the Centers for Disease Control and Prevention's Alcohol-Related Disease Impact application. We classified causes of CLD death as being alcohol-attributable, non-alcohol-attributable, or hepatitis C. We calculated average annual age-adjusted CLD death rates during five 3-year periods from 1999 through 2013, and we stratified those rates by sex, age, and race/ethnicity. By cause of death, CLD death rates were highest for alcohol-attributable CLD. By sex and race/ethnicity, CLD death rates per 100 000 population increased from 1999-2001 to 2011-2013 among American Indian men in New Mexico (67.4-90.6) and the United States (38.9-49.4), American Indian women in New Mexico (48.4-63.0) and the United States (27.5-39.5), Hispanic men in New Mexico (48.6-52.0), Hispanic women in New Mexico (16.9-24.0) and the United States (12.8-13.1), non-Hispanic white men in New Mexico (17.4-21.3) and the United States (15.9-18.4), and non-Hispanic white women in New Mexico (9.7-11.6) and the United States (7.6-9.7). CLD death rates decreased among Hispanic men in the United States (30.5-27.4). An expanded CLD definition and alcohol-attributable fractions can be used to create comprehensive data on CLD mortality. When stratified by CLD cause and demographic characteristics, these data may help states and jurisdictions improve CLD prevention programs.

Abstract A59: Influence of Spirituality on Cancer Risk Assessment Decisions: Perspectives of Hispanic & non-Hispanic Women

Abstract Spirituality has been a prominent coping resource among those facing cancer and can be especially relevant in dealing with the uncertainty of cancer risk. As part of a larger study, the aim of this study was to explore how spirituality influences decisions to get cancer risk assessment among Hispanic and non-Hispanic women in New Mexico. A total of 16 women with a personal history of breast and ovarian cancer participated in focus group or an interview. Ethnically, 50% of participants identified as Hispanic and racially, 69% identified as White. The mean age was 56 years old, 63% had a college degree, and 69% had a yearly household income of < $50,000. A majority (81%) of women stated that their spirituality was important or highly important in their lives. Although 94% replied that their spirituality does not influence their decisions to get genetic testing, discussion of spirituality within the context of getting cancer risk assessment was especially relevant among Hispanic participants. Qualitative analyses were done to extract themes on how spirituality might act as a facilitator or barrier to engaging in cancer risk assessment. Among non-Hispanic participants, there was acknowledgement of how spirituality may impact others' decision and a strong sentiment that spirituality not was relevant in their personal decisions for genetic testing. Among English-speaking Hispanic participants, there was a strong emphasis on the role that spirituality plays in well-being and as a central role in New Mexican Hispanic culture. Among Spanish-Speaking Hispanic participants, spirituality was paramount in coping with the experience of breast cancer and in encouraging genetic testing and screening as an avenue to protect health for individual and the family. In conclusion, spirituality may not have a direct influence on decisions to seek genetic testing for cancer risk, but the indirect influence of spirituality through culture and as a coping resource does vary by ethnicity. Citation Format: Belinda Vicuna. Influence of Spirituality on Cancer Risk Assessment Decisions: Perspectives of Hispanic & non-Hispanic Women. [abstract]. In: Proceedings of the Ninth AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; 2016 Sep 25-28; Fort Lauderdale, FL. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2017;26(2 Suppl):Abstract nr A59.

Postpartum contraceptive choices among ethnically diverse women in New Mexico

ObjectiveThe objective of the study was to determine if postpartum contraceptive choices by primiparous women differ by ethnicity. Study designRetrospective nested cohort study analyzing women’s characteristics and contraceptive choice. ResultsOf 652 participants, 312 (47.8%) were Hispanic, 287 (44.0%) were non-Hispanic white, and 53 (8.1%) were American Indian (AI). In multivariate analysis, depot medroxyprogesterone acetate (DMPA) and intrauterine device (IUD)/implant choice was related to AI [DMPA: odds ratio (OR) 15.28, confidence interval (CI) 4.49–52.04; IUD/implant: OR 0.46, CI 0.22–0.92] and Hispanic (DMPA: OR 3.44, CI 1.12–10.58) ethnicity. ConclusionDMPA use was higher among Hispanic and AI women and IUD/implant use lower in AI women compared to non-Hispanic white women.

Low fatty acid concentrations in neonatal cord serum correlate with maternal serum

Objective: Lactating women in New Mexico have low levels of important fatty acids relative to reported international data. The objective was to correlate the proportions of long-chain polyunsaturated fatty acids (LCPUFA) in the serum phospholipids in mothers and newborns within the same population. Methods: The serum phospholipids of 52 maternal:neonatal pairs were analyzed. Maternal samples from consecutive admissions were collected at hospital admission, and umbilical cord blood samples were collected at delivery. Fatty acid methyl esters were prepared and then separated and quantified by gas-liquid chromatography. Results: The median maternal percentages of arachidonic acid (AA) (4.9%), eicosapentaenoic acid (EPA) (0.27%) and docosahexaenoic acid (DHA) (2.07%) were below reported international levels. The percentages of AA (9.6%) and DHA (3.2%) in cord serum phospholipids were much higher than maternal samples but remained lower than reported internationally, whereas cord EPA (1.1%) was higher than reported. The highest percentage of DHA in serum phospholipids was found in the Asian subjects (4.21 ± 0.41%), while the American Indian women had the lowest DHA percentage (1.38 ± 0.26%). The maternal DHA percentage was negatively correlated with parity (r = −0.22, p = 0.04). Conclusions: In the setting of low maternal levels of important fatty acids, their newborns did not accrue serum levels equivalent to reported international values.

Sources of Potential Lead Exposure Among Pregnant Women in New Mexico

The objectives of this study were to ascertain the prevalence and potential sources of lead exposure among pregnant women residing in a socially-disadvantaged immigrant community in Albuquerque, New Mexico. Pregnant women (n=140) receiving prenatal care through a community clinic participated in a structured interview and screening to measure their blood lead levels (BLLs). Potential sources of lead exposure were ascertained by the CDC and New Mexico Department of Health questionnaires. Self-reported risk factors were examined as predictors of BLLs using multiple linear regression and partial least squares discriminant analysis. Most patients were Spanish-speaking (88.6%), Latina (95%), foreign-born (87.1%), lacked health insurance (86.4%), and had a high school education or lower (84.3%). While risk factors were prevalent in this population, only three women (2.1%) had BLLs ≥3μg/dL. Results of multivariate analyses demonstrated that pica symptoms in pregnancy, history of elevated BLLs before pregnancy, use of non-commercial pottery, and living in older houses were important predictors of elevated BLLs. Although the prevalence of other risk factors relevant to immigrant communities (i.e., use of traditional/folk remedies and cosmetics, seasonings and food products from Mexico) was high, they were not predictive of elevated BLLs. Clinics providing prenatal care to immigrant Hispanic communities should carefully assess patients' pica symptoms, use of non-commercial pottery, and a history of elevated BLLs. Moreover, additional efforts need to focus on the development of screening questionnaires which better reflect exposures of concern in this population.

Low Docosahexaenoic Acid in the Diet and Milk of American Indian Women in New Mexico

A recent finding of low levels of docosahexaenoic acid (DHA) in the milk of lactating Hispanic and non-Hispanic white women in New Mexico prompted a study of the DHA content of the breast milk and diets of American Indian women in the state. Nineteen urban American Indian women (18 to 40 years) who had been lactating for 1 to 6 months and who were attending clinics at the University of New Mexico Hospital were enrolled in a cross-sectional study that was conducted between June 2005 and February 2009. Descriptive statistics and correlations were performed. The mean fat content of the breast milk was 4.67±1.9 g/dL and the mean DHA proportion of the milk fat was 0.097%±0.035%, which is a low value relative to international norms. The low DHA content of the milk could be accounted for by the women's low dietary intake of DHA (median=30 mg). The DHA percentage in the women's milk fat was positively correlated with dietary intake of DHA ( r=0.67; P<0.001). This study shows that the DHA content of the breast milk of urban American Indian women attending clinics at a university hospital in New Mexico is well below levels widely acknowledged as being healthful for infants who rely mainly on breast milk for their supply of DHA.

Method of detection and breast cancer survival disparities in Hispanic women.

Hispanic women in New Mexico (NM) are more likely than non-Hispanic women to die of breast cancer-related causes. We determined whether survival differences between Hispanic and non-Hispanic women might be attributable to the method of detection, an independent breast cancer prognostic factor in previous studies. White women diagnosed with invasive breast cancer from 1995 through 2004 were identified from NM Surveillance Epidemiology End Results (SEER) files (n = 5,067) and matched to NM Mammography Project records. Method of cancer detection was categorized as "symptomatic" or "screen-detected." The proportion of Hispanic survival disparity accounted for by included variables was assessed using Cox models. In the median follow-up of 87 months, 490 breast cancer deaths occurred. Symptomatic versus screen-detection was classifiable for 3,891 women (76.8%), and was independently related to breast cancer-specific survival [hazard ratio (HR), 1.6; 95% confidence interval (95% CI), 1.3-2.0]. Hispanic women had a 1.5-fold increased risk of breast cancer-related death, relative to non-Hispanic women (95% CI, 1.2-1.8). After adjustment for detection method, the Hispanic HR declined from 1.50 to 1.45 (10%), but after inclusion of other prognostic indicators the Hispanic HR equaled 1.23 (95% CI, 1.01-1.48). Although the Hispanic HR declined 50% after adjustment, the decrease was largely due to adverse tumor prognostic characteristics. Reduction of disparate survival in Hispanic women may rely not only on increased detection of tumors when asymptomatic but on the development of greater understanding of biological factors that predispose to poor prognosis tumors.

“That Word, Cancer”: Breast Care Behavior of Hispanic Women in New Mexico—Background and Literature Review

Despite international efforts, national and ethnic disparities in utilization of breast cancer (BC) screenings prevail. In the United States, Hispanic women have one of the lowest BC screening rates. The purpose of our study was to examine how Hispanic women in New Mexico described their breast care behavior (BCB; BC screening practices, motivation to act, and breast care information behavior). Analysis of focus groups revealed five types of approaches to BCB. These findings have global implications for health care practitioners in directing attention toward the complexity of BC preventive behavior. Implications for other ethnic groups are discussed.

Low Docosahexaenoic Acid in the Diet and Milk of Women in New Mexico

Because docosahexaenoic acid (DHA) is critical for the development of the nervous system, especially during the first year of life, the content of DHA in human milk is important for the well-being of exclusively breastfed infants. The aim of this study was to determine the fatty acid composition, including DHA, of the breast milk fat and serum phospholipids of women in New Mexico, and to correlate these data with dietary fatty acid content. Samples of blood and breast milk, 3-day diet records, and information on dietary supplement use were obtained from 29 women. Eligible subjects were nonsmokers, aged 18 to 40 years, lactating for 1 to 6 months, and not pregnant, taking immunosuppressive drugs, or diagnosed with diabetes. The mean fat content of the breast milk was 3.37±2.34 g/dL. The percentage of DHA in the milk fat was very low (0.11%) relative to international norms (0.2% to 0.4%) and could be explained by the women's low intake of DHA (33 to 58 mg/day). These data can be explained by the fact that the subjects were not taking DHA supplements or consuming foods that are good sources of DHA. Correlations were found between the percentages of DHA in the serum phospholipids and milk fat. The findings underscore the need for educating lactating women about food sources of DHA. Educational opportunities could occur in conjunction with other education postdelivery or during postnatal clinic visits.

Cancer in American Indian and Alaska Native populations continues to threaten an aging population

2 University of Oklahoma College of Medicine/ Troy and Dolly Smith Cancer Center, Integris Baptist Medical Center, Oklahoma City, Oklahoma. A Brief History of Cancer Data in American Indians and Alaska Natives The risk for cancer has increased for American Indian and Alaska Native (AI/AN) populations since the beginning of the 20th century. This population is smaller in size and is younger than other racial/ ethnic groups, having survived the extermination policy of the US government in the 19th century and the decimation of the indigenous population by disease brought by the Europeans. Cancer statistics have not been easily obtained, nor accurate, for this special population. Tribal recognition, self-identification, and sporadic data collection concerning AI/AN populations have been fragmented. Only recently have improved data been prioritized by state health departments and hospital and central cancer registries.

Breaking the Cycle/Mending the Hoop: Adverse Childhood Experiences Among Incarcerated American Indian/Alaska Native Women in New Mexico

Incarcerated American Indian/Alaska Native (AI/AN) women have multiple physical, social, and emotional concerns, many of which may stem from adverse childhood experiences (ACE). We interviewed 36 AI/AN women incarcerated in the New Mexico prison system to determine the relationship between ACE and adult outcomes. ACE assessment included physical neglect, dysfunctional family (e.g., household members who abused substances, were mentally ill or suicidal, or who were incarcerated), violence witnessed in the home, physical abuse, and sexual abuse. The most prevalent ACE was dysfunctional family (75%), followed by witnessing violence (72%), sexual abuse (53%), physical abuse (42%), and physical neglect (22%). ACE scores were positively associated with arrests for violent offenses, lifetime suicide attempt(s), and intimate partner violence.

HLA Alleles and Risk of Cervical Intraepithelial Neoplasia Among Southwestern American Indian Women

An increase in cervical intraepithelial neoplasia (CIN) has been described in American Indian women in New Mexico. Differences in human leukocyte antigen (HLA) alleles have been reported in cervical intraepithelial neoplasia (CIN) compared with controls in other populations. We investigated HLA alleles and CIN in Southwest American Indian women. The case control study included 89 women with biopsy-proven CIN II/III (diagnosed November 1994 through October 1997) and 271 similar women with normal cervical epithelium from the same clinics. DRB1, DQB1, and DPB1 alleles were determined using DNA typing techniques. DQA1 and HLA-A allele typing was included for some subjects (randomly chosen n = 37 and n = 163 cases and controls, respectively). We found a decreased risk of CIN with DRB1*1402 (OR 0.5, 95% CI 0.3–0.9) and an increased risk with DRB1*1501 (OR 2.7, 95% CI 0.9–7.3). Additionally, DQA1*0102 was associated with increased risk (OR 4.5, 95% CI 1.3–5.3) and HLA-A*02 with decreased risk (OR 0.4, CI 0.2–0.9). Our findings are discussed along with studies in other populations.

Association of Body Composition and Weight History with Breast Cancer Prognostic Markers: Divergent Pattern for Hispanic and Non-Hispanic White Women

Body composition and weight gain are breast cancer risk factors that may influence prognosis. The Health, Eating, Activity, and Lifestyle Study was designed to evaluate the relations of body composition, weight history, hormones, and lifestyle factors to prognosis for women with breast cancer. In the cross-sectional analysis of this cohort study specific to 150 Hispanic and 466 non-Hispanic White women in New Mexico diagnosed between 1996 and 1999, the authors hypothesized that obesity measures are associated with baseline prognostic markers and that these associations are modified by ethnicity. Ethnic-stratified multiple logistic regression analyses showed divergent results for a tumor size of 1.0 cm or more and, to a lesser extent, positive lymph node status. Among Hispanics, the highest quartile for body mass index (29.5 vs. <22.5 kg/m2: odds ratio (OR) = 0.16, 95% confidence interval (CI): 0.03, 0.84) and for waist circumference (> or =95.0 vs. <78.5 cm: OR = 0.09, 95% CI: 0.01, 0.78) was significantly associated with a reduced tumor size. In contrast, for overweight and obese non-Hispanic White women, there was an increased association with obesity-related measures, particularly striking for the highest quartile of waist circumference (OR = 2.76, 95% CI: 1.45, 5.26). These findings suggest that Hispanics may have a different breast cancer phenotype than non-Hispanic Whites, which associates differently with body composition and weight history.

Can the Gail model be useful in American Indian and Alaska Native populations?

Very little is known about breast carcinoma risk factors for American Indian/Alaska Native (AI/AN) women undergoing screening. The Gail model has been a useful tool for predicting the risk of breast carcinoma in several populations. It has not been applied systematically to AI/AN women. The current study was a retrospective review of 1458 screening mammograms performed for AI/AN women. The authors applied the Gail model to estimate both absolute risk and relative risk for breast carcinoma for AI/AN women screened in South Dakota, Arizona, and Alaska. The mean age of the women was 52.4 years. The onset of menses was not significantly different than expected. The average age at first birth was 20 years, very few women were nulliparous, and few women were age > 30 years at first live birth. The proportion of women reporting a first- or second-degree relative with breast carcinoma was similar to the proportion in the general population. The results of the model indicated an overall average relative risk that ranged from 1.42 to 2.69 compared with white American women, depending on the model assumptions used. Using a modified Gail model and calculating an imputed absolute risk, the expected incidence of breast carcinoma in this population increased to rates of 170-180 per 100,000 in the next 10 years, a significant increase over the Surveillance, Epidemiology and End Results-derived incidence rates from 1988 to 1992 of 31.6 per 100,000 for AI women in New Mexico and 78.9 per 100,000 for AN women. The model indicated a likelihood of increasing rates of breast carcinoma in the study population. The data obtained were useful in generating preliminary estimates of breast carcinoma risk in the study population, for which no prospective population survey has been completed. The inherent weaknesses in the current retrospective study indicated the need for a large-scale prospective data collection to confirm these exploratory findings.