Survey Research New Mexico Hispanics: Some Methodological Issues

Howard, Cheryl A.; Samet, Jonathan M.; Buechley, Robert W.; Schrag, Susan D.; Key, Charles R.

doi:10.1093/oxfordjournals.aje.a113512

Cited by 79 publications

(36 citation statements)

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“…Since the focus of the study was to evaluate breast cancer risk factors in HAI populations living in the southwestern United States, all HAI women identified were eligible and NHW cases were randomly selected on the basis of the distribution of Hispanic cases. The GUESS (Generally Useful Ethnic Survey System) program was used to initially identify women who were Hispanic based on surname; ethnicity information from cancer registries or lists generated for control selection also were used to define initial ethnicity (14). We screened all women identified to verify ethnicity and eligibility prior to study enrollment.…”

Section: Methodsmentioning

confidence: 99%

Physical Activity and Breast Cancer Risk Among Women in the Southwestern United States

Slattery

Edwards

Murtaugh

et al. 2007

Annals of Epidemiology

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Physical activity may influence breast cancer risk through multiple mechanisms and at different periods in life. In this study we evaluate breast cancer risk associated with total and vigorous physical activity at ages 15, 30, and 50 years and the referent year prior to diagnosis/selection. Participants were non-Hispanic white (NHW) (1527 cases and 1601 control subjects) and Hispanic/American Indian (HAI) (798 cases and 924 controls) women. Both total and vigorous activity reduced risk of breast cancer in a dose-response manner. Among premenopausal women, only high total metabolic equivalent of the task (MET) hours of activity during the referent year was associated with reduced breast cancer risk in NHW women (odds ratio [OR] 0.62; 95% confidence interval [CI] 0.43, 0.91). Among postmenopausal women, physical activity had the greatest influence among women not recently exposed to hormones. Among these women, high total lifetime activity reduced risk of breast cancer for both NHW (OR 0.60; 95% CI 0.36, 1.02; p trend 0.01) and HAI women (OR 0.52; 95% CI 0.23, 1.16; p trend 0.07). Additionally, high total MET hours of activity at age 30 years (OR 0.56; 95% CI 0.37, 0.85) and at age 15 years (OR 0.57; 95% CI 0.38, 0.88) reduced breast cancer risk among postmenopausal NHW women not recently exposed to hormones. Among HAI women, more recent activity performed during the referent year and at age 50 appeared to have the greatest influence on breast cancer risk. Among postmenopausal NHW women. there was a significant interaction between physical activity and hormone replacement therapy (p value, 0.01), while among postmenopausal HAI women, physical activity interacted with body mass index (p value, 0.04). These data suggest that physical activity is important in reducing risk of breast cancer in both NHW and HAI women.

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Section: Methodsmentioning

confidence: 99%

Physical Activity and Breast Cancer Risk Among Women in the Southwestern United States

Slattery

Edwards

Murtaugh

et al. 2007

Annals of Epidemiology

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“…An age-matched sample of NHW women were randomly selected on a 1:1 ratio to the distribution of Hispanic cases in Arizona and Colorado; at a 4:1 ratio to the distribution of Hispanic cases in Utah; all Hispanic and non-Hispanic cases age 50 and under in New Mexico; and a 1:1 ratio for women over 50 in New Mexico. The GUESS program (Generally Useful Ethnic Search System) was used along with the census Spanish surname list to initially identify women who were potentially Hispanic [26,27]. Hispanic ethnicity was verified by self-report at the time of the interview.…”

Section: Methodsmentioning

confidence: 99%

Active and passive smoking, IL6, ESR1, and breast cancer risk

Slattery

Curtin

Giuliano

et al. 2007

Breast Cancer Res Treat

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We evaluated the association between smoking and risk of breast cancer in non-Hispanic white (NHW) and Hispanic or American Indian (HAI) women living in the Southwestern United States. Data on lifetime exposure to active and passive smoke data were available from 1527 NHW cases and 1601 NHW controls; 798 HAI cases and 924 HAI controls. Interleukin 6 (IL6) and Estrogen Receptor alpha (ESR1) polymorphisms were assessed in conjunction with smoking. Pack-years of smoking (≥15) were associated with increased risk of pre-menopausal breast cancer among NHW women (OR 1.6, 95% CI 1.1-2. 4). Passive smoke increased risk of pre-menopausal breast cancer for HAI women (OR 1.9, 95% CI 1.1-3.1 everyone; OR 2.3, 95% CI 1.2-4.5 nonsmokers). HAI premenopausal women who were exposed to 10+ h of passive smoke per week and had the rs2069832 IL6 GG genotype had over a fourfold increased risk of breast cancer (OR 4.4, 95% CI 1.5-12.8; P for interaction 0.01). Those with the ESR1 Xba1 AA genotype had a threefold increased risk of breast cancer if they smoked ≥15 pack-years relative to non-smokers (P interaction 0.01). These data suggest that breast cancer risk is associated with active and passive smoking.

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“…Cases with an incident primary breast cancer diagnosed in December 1999-September 2004 were identified through state-wide cancer registries in each state. HISP ethnicity was initially identified from cancer registry information or by computerized search using the GUESS (Generally Useful Ethnic Search System) [15] algorithm and Census Spanish Surname List [16]. All HISP cases was selected for the study, and a sample of NHW cases, frequency-matched to HISP on age, were selected.…”

Section: Study Populationmentioning

confidence: 99%

Reproductive history in relation to breast cancer risk among Hispanic and non-Hispanic white women

Sweeney

Baumgartner

Byers

et al. 2007

Cancer Causes Control

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Objective-To evaluate reproductive history risk factors in breast cancer among Hispanic (HISP) women in the U.S. southwest, a population with approximately 33% lower breast cancer incidence than non-Hispanic whites (NHW).Methods-Population-based case-control study of HISP (796 cases, 919 controls) and NHW (1,525 cases, 1,596 controls) women.Results-19.3% of HISP women reported five or more births and had a reduced risk of breast cancer, adjusted odds ratio (OR) 0.70 (95% confidence interval (CI): 0.50, 0.98) compared to those with one or two births. Breast cancer risk for HISP increased with older age at first birth, p trend = 0.008. Parity and age at first birth associations were specific to ER positive tumors. HISP women who had given birth within five years had higher breast cancer risk than women with 16-25 years since a birth, OR 2.62 (95% CI: 1.44, 4.78); the tend with years since last birth was stronger than for NHWs, p interaction = 0.05.Conclusions-Reproductive history influences on breast cancer risk among HISP were similar to associations reported for NHWs. Differences in the prevalence of reproductive risk factors would explain an estimated 6.6% lower breast cancer incidence for HISP compared to NHWs. Keywords Breast neoplasms; Reproductive history; Hispanic AmericansHispanic women in the U.S. have a lower incidence of breast cancer than NHW [1]. Racial and ethnic differences in disease incidence may be related to one or more factors: differences in the prevalence of environmental and lifestyle risk factors for the disease, differences in susceptibility to the influence of risk factors, or differences in genetic risk. Possible differences in the role of reproductive and other risk factors in breast cancer among HISP compared to NHW women have been suggested [2][3][4].Several aspects of reproductive history, including age at menarche, age at first birth, and parity, have been consistently reported to affect breast cancer risk [5][6][7][8][9] based on studies in predominantly NHW populations. Some reproductive history exposures appear to affect incidence of estrogen receptor (ER) positive tumors specifically [10,11], and the proportion of breast cancers that express the ER differs between HISP and NHW populations [12,13] Subjects and methods Study populationParticipants were recruited and interviewed for a case-control study of breast cancer in the U.S. states of Arizona, Colorado, New Mexico, and Utah. Methods for identifying, recruiting, and interviewing subjects have been described previously [4,14] InterviewA questionnaire was administered by a trained interviewer using computer-assisted personal interview software. Interviews were audio-recorded for quality assurance [17]. The complete text of the questionnaire is available at https://www.zorro.hrc.utah.edu/breast.html. Information was obtained about diet, medical history, physical activity, menstrual history and use of hormones, pregnancy history, family history of cancer, history of mammograms, and tobacco and alcohol exposures. Exposu...

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Survey Research New Mexico Hispanics: Some Methodological Issues

Cited by 79 publications

References 0 publications

Physical Activity and Breast Cancer Risk Among Women in the Southwestern United States

Physical Activity and Breast Cancer Risk Among Women in the Southwestern United States

Active and passive smoking, IL6, ESR1, and breast cancer risk

Reproductive history in relation to breast cancer risk among Hispanic and non-Hispanic white women

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