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Ninez A Ponce

Publications and source records attributed to Ninez A Ponce.

12 recordsLinked to original sources
PubMed2006

A population-based survey of prostate-specific antigen testing among California men at higher risk for prostate carcinoma.

BACKGROUND: Despite the lack of evidence demonstrating a survival benefit from prostate-specific antigen (PSA) screening, its use has become widespread, organizations have encouraged physicians to discuss early detection of prostate carcinoma, and two higher risk groups have been recognized. In the current study, the authors examined whether African-American men and men who had a family history of prostate carcinoma underwent PSA testing preferentially, and patterns of test use were examined according to age, race, and other factors. METHODS: Data regarding self-reported PSA test use in the past year among men age 50 years and older without a history of prostate carcinoma (n = 8713 men) were analyzed from the 2001 California Health Interview Survey. RESULTS: The overall rate of PSA use was 43.0%. Older age, higher socioeconomic status, having a usual source of healthcare, and a family history of prostate carcinoma were the strongest predictors of testing. Higher risk African-American men age 50 years and older were no more likely to be tested than white men. Men at higher risk who had a family history of prostate carcinoma were more likely to have been tested than men who had no such family history. CONCLUSIONS: Rates of PSA use among higher risk men who had a family history of prostate carcinoma were higher compared with the rates among men without such a family history. However, PSA testing rates among higher risk African-American men were no different than the rates among lower risk white men, suggesting that some risk factors for prostate carcinoma (but not others) are associated with preferential testing. Testing in all groups was associated with access to care variables, highlighting the importance of removing barriers to preventive healthcare services.

Black or African American↗
PubMed2006

Is there a language divide in pap test use?

OBJECTIVE: We sought to determine whether primary language use, measured by language of interview, is associated with disparities in cervical cancer screening. DATA SOURCES: We undertook a secondary data analysis of a pooled sample of the 2001 and 2003 California Health Interview Surveys. The surveys were conducted in English, Spanish, Cantonese, Mandarin, Korean, and Vietnamese. STUDY DESIGN: The study was a cross-sectional analysis of 3-year Pap test use among women ages 18 to 64, with no reported cervical cancer diagnosis or hysterectomy (n = 38,931). In addition to language of interview, other factors studied included race/ethnicity, marital status, income, educational attainment, years lived in the United States, insurance status, usual source of care, smoking status, area of residence, and self-rated health status. DATA COLLECTION/EXTRACTION METHODS: We fit weighted multivariate logit models predicting 3-year Pap test use as a function of language of interview, adjusting for the effects of specified covariates. PRINCIPAL FINDINGS: Compared with the referent English interview group, women who interviewed in Spanish were 1.65 times more likely to receive a Pap test in the past 3 years. In contrast, we observed a significantly reduced risk of screening among women who interviewed in Vietnamese (odds ratio [OR] 0.67; confidence interval [CI] 0.48-0.93), Cantonese (OR 0.44; 95% CI 0.30-0.66), Mandarin (OR 0.48; 95% CI 0.33-0.72), and Korean (OR 0.62; 0.40-0.98). CONCLUSIONS: Improved language access could reduce cancer screening disparities, especially in the Asian immigrant community.

Adolescent↗
PubMed2006

Linguistic disparities in health care access and health status among older adults.

BACKGROUND: English proficiency may be important in explaining disparities in health and health care access among older adults. SUBJECTS: Population-based representative sample (N=18,659) of adults age 55 and older from the 2001 California Health Interview Survey. METHODS: We examined whether health care access and health status vary among older adults who have limited English proficiency (LEP), who are proficient in English but also speak another language at home (EP), and who speak English only (EO). Weighted bivariate and multivariate survey logit analyses were conducted to examine the role of language ability on 2 aspects of access to care (not having a usual source of care, delays in getting care) and 2 indicators of health status (self-rated general health and emotional health). RESULTS: Limited-English proficient adults were significantly worse off (1.68 to 2.49 times higher risk) than EO older adults in 3 of our 4 measures of access to care and health status. Limited-English proficient older adults had significantly worse access to care and health status than EP older adults except delays in care. English proficient adults had 52% increased risk of reporting poorer emotional health compared with EO speakers. CONCLUSIONS: Provision of language assistance services to patients and training of providers in cultural competence are 2 means by which health care systems could reduce linguistic barriers, improve access to care, and ultimately improve health status for these vulnerable populations.

Aged↗
PubMed2006

Language barriers to health care access among Medicare beneficiaries.

This study examined language barriers to health care access among a population-based sample of Medicare seniors in California in 2001 and 2003. Results indicate that Medicare beneficiaries with limited English proficiency (LEP) had less access to a usual source of care and were less likely to receive preventive cancer screening tests. LEP Medicare beneficiaries who also were covered by Medicaid tended to fare better than those without Medicaid. This could be due to federal civil rights rules that require Medicaid health care providers to offer free language assistance, but exclude from these requirements physicians who provide only Medicare services. Findings suggest the federal government should take steps to reduce language barriers in Medicare.

Aged↗
PubMed2005

Preterm birth: the interaction of traffic-related air pollution with economic hardship in Los Angeles neighborhoods.

Preterm birth may be affected by the interaction of residential air pollution with neighborhood economic hardship. The authors examined variations in traffic-related pollution exposure--measured by distance-weighted traffic density--using a framework reflecting the social and physical environments. An adverse social environment was conceptualized as low socioeconomic status (SES) neighborhoods--census tracts with concentrated poverty, unemployment, and dependence on public assistance. An adverse physical environment was depicted by the winter season, when thermal inversions trap motor vehicle pollutants, thereby increasing traffic-related air pollution. Los Angeles County, California, birth records from 1994 to 1996 were linked to traffic counts, census data, and ambient air pollution measures. The authors fit multivariate logistic models of preterm birth, stratified by neighborhood SES and third pregnancy trimester season. Traffic-related air pollution exposure disproportionately affected low SES neighborhoods in the winter. Further, in these poorer neighborhoods, the winter season evidenced increased susceptibility among women with known risk factors. Health insurance was most beneficial to women residing in neighborhoods exposed to economic hardship and an adverse physical environment. Reducing preterm births warrants a concerted effort of social, economic, and environmental policies, focused on not only individual risk factors but also the reduction of localized air pollution, expansion of health-care coverage, and improvement of neighborhood resources.

Adolescent↗
PubMed2005

Do HMO market level factors lead to racial/ethnic disparities in colorectal cancer screening? A comparison between high-risk Asian and Pacific Islander Americans and high-risk whites.

BACKGROUND: Few studies have explored health care market structure and colorectal cancer (CRC) screening test use, and little is known whether market factors contribute to racial/ethnic screening disparities. OBJECTIVE: We investigated whether HMO market level factors, controlling for individual covariates, differentially impact Asian American and Pacific Islander (AAPI) subjects' access to CRC screening compared with white subjects. RESEARCH DESIGN AND METHODS: We used random intercept hierarchical models to predict CRC test use. Individual-level survey data was linked to market data by metropolitan statistical areas from InterStudy. SUBJECTS: Insured first-degree relatives, ages 40-80, of a random sample of colorectal cancer cases identified from the California Cancer Registry: 515 white subjects and 396 AAPI subjects residing in 36 metropolitan statistical areas (MSAs). MEASURES: Dependent variables were receipt of (1) annual fecal occult blood test only; (2) sigmoidoscopy in the past 5 years; (3) colonoscopy in the past 10 years; and (4) any of these tests over the recommended time interval. Market characteristics were HMO penetration, HMO competition, and proportion of staff/group/network HMOs. FINDINGS: Market characteristics were as important as individual-level characteristics for AAPI but not for white subjects. Among AAPI subjects, a 10% increase in the percent of group/staff/network model HMO was associated with a reduction in colonoscopy use (28.9% to 20.5%) and in receipt of any of the CRC tests (53.2% to 45.4%). CONCLUSIONS: The prevailing organizational structure of a health care market confers a penalty on access to CRC test use among high-risk AAPI subjects but not among high-risk white subjects. Identifying the differential effect of market structure on race/ethnicity can potentially reduce the cancer burden among disadvantaged racial groups.

Adult↗
PubMed2005

The impact of private and public health insurance on medication use for adults with chronic diseases.

This article examines the impact of public and private health insurance on the use of medications for California adults with any of four chronic diseases: heart disease, high blood pressure, diabetes, and asthma. The data set used is the 2001 California Health Interview Survey. Multivariate analyses were conducted on individuals who had been diagnosed with each of these diseases. Controlling for various demographic, health status, and employment characteristics, the authors find that the uninsured are far less likely to be taking medications for each of the conditions than those with private insurance. Interestingly, those with Medicaid coverage are even more likely than those with private insurance to be taking such medications. The results of this study underscore the importance of health insurance for all persons with chronic conditions and the benefits of Medicaid in particular for low-income adults with chronic conditions.

Adolescent↗
PubMed2004

A population-based study of colorectal cancer test use: results from the 2001 California Health Interview Survey.

BACKGROUND: Recent research has supported the use of colorectal cancer (CRC) tests to reduce disease incidence, morbidity, and mortality. A new health survey has provided an opportunity to examine the use of these tests in California's ethnically diverse population. The authors used the 2001 California Health Interview Survey (CHIS 2001) to evaluate 1) rates of CRC test use, 2) predictors of the receipt of tests, and 3) reasons for nonuse of CRC tests. METHODS: The CHIS 2001 is a random-digit dial telephone survey that was conducted in California. Responses were analyzed from 22,343 adults age >/= 50 years. CRC test use was defined as receipt of a fecal occult blood test in the past year and/or receipt of an endoscopic examination in the past 5 years. RESULTS: Nearly 54% of California adults reported receipt of a recent CRC test. Insurance coverage and having a usual source of care were the most important predictors of CRC testing. Latinos age < 65 years were less likely to be tested than whites (relative risk [RR], 0.84; 95% confidence interval [95% CI], 0.77-0.92). Men were more likely to be tested than women, an effect that was greater among individuals age 50-64 years (RR, 1.28; 95% CI, 1.23-1.32) than among individuals age >/= 65 years (RR, 1.19; 95% CI, 1.15-1.23). Women were more likely than men to say that their physician did not inform them the test was needed and that CRC tests were painful or embarrassing. CONCLUSIONS: Results of the current study indicate a need for physicians to recommend CRC testing to their patients. Assuring that all individuals have both health insurance and a usual source of care would help address gaps in the receipt of CRC tests.

Aged↗
PubMed2003

Population-based interventions engaging communities of color in healthy eating and active living: a review.

INTRODUCTION: The U.S. obesity epidemic is escalating, particularly among communities of color. Obesity control efforts have shifted away from individual-level approaches toward population-based approaches that address socio-cultural, political, economic, and physical environmental factors. Few data exist for ethnic minority groups. This article reviews studies of population-based interventions targeting communities of color or including sufficient samples to permit ethnic-specific analyses. METHODS: Inclusion criteria were established, an electronic database search conducted, and non-electronically catalogued studies retrieved. Findings were aggregated for earlier (early 1970s to early 1990s) and later (mid-1990s to present) interventions. RESULTS: The search yielded 23 ethnically inclusive intervention studies published between January 1970 and May 2003. Several characteristics of inclusive interventions were consistent with characteristics of community-level interventions among predominantly white European-American samples: use of non-interpersonal channels for information dissemination directed at broad spheres of influence (e.g., mass media), promotion of physical activity, and incorporation of social marketing principles. Ethnically inclusive studies, however, also placed greater emphasis on involving communities and building coalitions from study inception; targeting captive audiences; mobilizing social networks; and tailoring culturally specific messages and messengers. Inclusive studies also focused more on community than individual norms. Later studies used "upstream" approaches more than earlier studies. Fewer than half of the inclusive studies presented outcome evaluation data. Statistically significant effects were few and modest, but several studies demonstrated better outcomes among ethnic minority than white participants sampled. CONCLUSION: The best data available speak more about how to engage and retain people of color in these interventions than about how to create and sustain weight loss, regular engagement in physical activity, or improved diet. Advocacy should be directed at increasing the visibility and budget priority of interventions, particularly at the state and local levels.

Diet↗
PubMed2002

Classification of race and ethnicity: implications for public health.

Emerging methods in the measurement of race and ethnicity have important implications for the field of public health. Traditionally, information on race and/or ethnicity has been integral to our understanding of the health issues affecting the U.S. population. We review some of the complexities created by new classification approaches made possible by the inclusion of multiple-race assessment in the U.S. Census and large health surveys. We discuss the importance of these classification decisions in understanding racial/ethnic health and health care access disparities. The trend toward increasing racial and ethnic diversity in the United States will put further pressure on the public health industry to develop consistent and useful approaches to racial/ethnic classifications.

Bias↗
PubMedDate not supplied

The California Health Interview Survey 2001: translation of a major survey for California's multiethnic population.

The cultural and linguistic diversity of the U.S. population presents challenges to the design and implementation of population-based surveys that serve to inform public policies. Information derived from such surveys may be less than representative if groups with limited or no English language skills are not included. The California Health Interview Survey (CHIS), first administered in 2001, is a population-based health survey of more than 55,000 California households. This article describes the process that the designers of CHIS 2001 underwent in culturally adapting the survey and translating it into an unprecedented number of languages: Spanish, Chinese, Vietnamese, Korean, and Khmer. The multiethnic and multilingual CHIS 2001 illustrates the importance of cultural and linguistic adaptation in raising the quality of population-based surveys, especially when the populations they intend to represent are as diverse as California's.

Adolescent↗