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Biomedical subjects

Elaine Yu

Publications and source records attributed to Elaine Yu.

4 recordsLinked to original sources

Effects of patients with bipolar, schizophrenic, and major depressive disorders on the mental and other healthcare expenses of family members.

Family members who live with patients with serious mental disorders incur increased healthcare expenses. A retrospective study measured these increased expenses using administrative data from a large Blue Cross Blue Shield health plan in the USA. Mental and other healthcare expenses of family members of patients with bipolar disorder, schizophrenia, or major depression were compared to those of control family members. Ordinary least squares and logistic regression were used to estimate differences. In comparison with control (families of two or more members without these psychiatric disorders), mental and other healthcare expenses per family member per month were increased for subject family members as follows: bipolar disorder, $8.85 (213%; P<0.0001) and $10.65 (7.4%; P<0.0001); schizophrenia, $4.03 (81%; P<0.0001) and $5.96 (4.2%; P<0.005); and major depression $8.24 (219%; P<0.0001) and $9.46 (6.5%; P<0.0001). Among other factors, older family members had a greater likelihood of using mental healthcare and higher levels of other healthcare; males were less likely than females to use mental healthcare but had higher levels of other healthcare, and managed forms of coverage were associated with higher levels of both mental and other healthcare. We conclude that living with a person with serious mental illness significantly increases healthcare expenses of family members, especially mental healthcare. Family members of patients with bipolar disorder and major depression experienced larger increases in expenses than family members of patents with schizophrenia, despite the fact that patients with schizophrenia were more seriously ill as reflected in the much higher mental healthcare expenses of these patients.

Adult↗

An XML message broker framework for exchange and integration of microarray data.

MOTIVATION: Microarrays are an important research tool for the advancement of basic biological sciences. However this technology has yet to be integrated with clinical decision making. We have implemented an information framework based on the Microarray Gene Expression Markup Language (MAGE-ML) specification. We are using this framework to develop a test-bed integrated database application to identify genomic and imaging markers for diagnosis of breast cancer. RESULTS: We developed extensible software architecture for retrieving data from different microarray databases using MAGE-ML and for combining microarray data with breast cancer image analysis and clinical data for correlation studies. The framework we developed will provide the necessary data integration to move microarray research from basic biological sciences to clinical applications. AVAILABILITY: Open source software will be available from SourceForge (http://sourceforge.net/projects/microsoap/).

Database Management Systems↗

Psychometric performance of the NEI VFQ-25 in visually normal Latinos: the Los Angeles Latino Eye Study.

PURPOSE: To characterize the psychometric performance of the National Eye Institute 25-item Visual Function Questionnaire (NEI VFQ-25) in visually normal Latinos (Mexican Americans). METHODS: The Los Angeles Latino Eye Study (LALES) is a population-based study to assess the prevalence of eye disease and self-reported visual functioning in Latinos aged 40 or more years. Self-reported visual functioning was assessed by using English and Spanish versions of the NEI VFQ-25. Psychometric properties of the NEI VFQ-25, including internal consistency of the subscales and the individual items, were assessed through the Multi-trait Analysis Program-Revised (MAP-R) analysis. Adjusted mean and median subscale scores were compared between English and Spanish speakers to identify any systematic differences. RESULTS: Of the 1917 participants from two census tracts, 1171 participants with no visual impairment were included in this analysis. The mean age of the participants was 52.3 years, 57% of the participants were female, and 67.5% of the participants were Spanish speaking. Median scores for Spanish-speaking participants were significantly lower than those of the English-speaking participants on four subscales: Ocular Pain, General Vision, Vision-Specific Mental Health, and General Health (P < 0.05). Internal consistency for three of eight measurable subscales for the study group was poor (Cronbach alpha < 0.6). CONCLUSIONS: This study reveals psychometric inconsistencies in the NEI VFQ-25 when administered to visually normal Latinos. The difference in mean subscale scores between Spanish and English speakers must be integrated into the development of population norms of visual function. Further detailed psychometric evaluation is needed to determine the validity of this instrument in Latino populations.

Activities of Daily Living↗

Using focus groups to develop a culturally sensitive methodology for epidemiological surveys in a Latino population: findings from the Los Angeles Latino Eye Study (LALES).

BACKGROUND: Many standardized survey instruments are initially developed in English-speaking populations. These instruments may not be culturally appropriate for other ethnic groups, such as Latinos. METHODS: The Los Angeles Latino Eye Study (LALES) was designed to determine the prevalence of blindness, visual impairment, and ocular diseases; risk factors for these diseases; and general and ocular healthcare use among non-institutionalized adult Latinos in suburban Los Angeles County, California. The LALES investigators used focus groups to develop questionnaires and to devise culturally sensitive methods for implementing this epidemiologic study in a Latino population. Eighty-four respondents were administered the in-home questionnaire and then scheduled into one of 6 in-home focus groups, allowing participants to reflect in groups about the study, their participation, and the state of the instruments and the translations. FINDINGS: Overall, respondents reported that the questionnaire was well written, easy to understand, and very clear. Recommendations from participants included: 1) keep questions brief; 2) minimize the number of response choices; 3) keep phrasing clear; 4) simplify technical terms; 5) provide test results immediately after the clinical examination; and 6) hire Spanish-speaking staff to increase participants' trust and confidence. CONCLUSION: Focus groups assisted in yielding a culturally appropriate survey research tool and methodology for this population-based study in a Latino community.

Adult↗