Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 14 de 14
Filtrar
1.
Artículo en Inglés | MEDLINE | ID: mdl-37174260

RESUMEN

Background: Acute Coronary Syndrome (ACS) causes the most deaths in the United States and accounts for the highest amount of healthcare spending. Cardiovascular Health (CVH) metrics have been widely used in primary prevention, but their benefits in secondary prevention on total healthcare expenditures related to ACS are largely unknown. This study aims to quantify the potential significance of ideal CVH scores as a tool in secondary cardiovascular disease prevention. Methods: In a cross-sectional analytical study, ten years of Medical Expenditure Panel Survey (MEPS) data from 2008 to 2018 were pooled, comparing ACS to non-ACS subgroups, utilizing a Two-part model with log link and gamma distribution, since our sample had both positive and zero costs. Conditional on positive expenditure, healthcare expenditure amounts were measured as a function of ACS status, socio-demographics, and CVH while controlling for relevant covariates. Finally, interactions of ACS with CVH metrics and other key variables were included to allow for variations in the effect of these variables on the two subgroups. Results: Improvements in CVH scores tended to reduce annual expenditures to a greater degree percentage-wise among ACS subjects compared to non-ACS groups, even though subjects with an ACS diagnosis tended to have approximately twice as big expenditures as similar subjects without an ACS diagnosis. Meanwhile, the financial impact of an ACS event on total expenditure would be approximately $88,500 ([95% CI, $70,200-106,900; p < 0.001]), and a unit improvement in CVH management score would generate savings of approximately $4160 ([95% CI, $5390-2950; p < 0.001]) in total health expenditures. Conclusions: Effective secondary preventive measures through targeted behavioral endeavors and improved health factors, especially the normalization of hypertension, diabetes mellitus, body mass index, and smoking cessation, have the potential to reduce medical spending for ACS subgroups.


Asunto(s)
Síndrome Coronario Agudo , Enfermedades Cardiovasculares , Diabetes Mellitus , Cese del Hábito de Fumar , Humanos , Estados Unidos , Gastos en Salud , Enfermedades Cardiovasculares/diagnóstico , Estudios Transversales , Factores de Riesgo , Estado de Salud
2.
Subst Use Misuse ; 57(6): 833-840, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35258396

RESUMEN

Background: Electronic cigarette (e-cigarette) and cannabis (marijuana) use is rapidly increasing. Objectives: To report percentage prevalence and changes over time in current (past 30 days) e-cigarette, cannabis, and dual (concurrent) use in the population of reproductive age women (18-44 years old) in the United States. Methods: Our cross-sectional analysis involved data of 11, 004 women from Waves 1 to 3 of the Population Assessment of Tobacco and Health (PATH) Study (2013-2016). We estimated weighted percentage prevalence and 95% confidence intervals (CIs) and changes between 2013 and 2016 in current e-cigarette, cannabis, and dual use at each wave overall and across race/ethnicity, age, education, cigarette smoking status, alcohol use, and perceived mental health. Changes were reported as p for trend. Results: Between 2013 and 2016, e-cigarette use increased 13.6% (p for trend <.001) [15.2% (95% CI:14.2, 16.2) in 2013-2014; 22.2% (95% CI: 20.2, 24.3) in 2014-2015; and 28.8% (95% CI: 26.3, 31.3) in 2015-2016]; cannabis use increased 6.2% (p for trend <.001) [23.6% (95% CI: 22.1, 25.1) in 2013-2014; 28.5% (95% CI: 26.0, 31.0) in 2014-2015; and 29.8% (95% CI: 27.9, 31.1) in 2015-2016]; and dual use declined 0.3% (p for trend <.001) [5.8% (95% CI: 5.2, 6.3) in 2013-2014; 4.8% (95% CI: 3.7, 5.8) in 2014-2015; and 5.5% (95% CI: 4.2, 6.7) in 2015-2016]. Increases and declines in prevalence varied across sociodemographic characteristics, cigarette smoking status, alcohol use, and perceived mental health. Conclusions: Continued monitoring can capture further changes in prevalence and patterns to inform targeted public health intervention programs.


Asunto(s)
Cannabis , Sistemas Electrónicos de Liberación de Nicotina , Productos de Tabaco , Adolescente , Adulto , Estudios Transversales , Femenino , Humanos , Prevalencia , Nicotiana , Estados Unidos/epidemiología , Adulto Joven
3.
J Occup Environ Med ; 63(12): 1087-1092, 2021 12 01.
Artículo en Inglés | MEDLINE | ID: mdl-34354019

RESUMEN

OBJECTIVE: To explore the interaction between chronic bronchitis and blood cadmium on the prevalence of myocardial infarction. METHODS: We used weighted US-NHANES data. Multivariate survey logistic regression was used to examine the associations between myocardial infarction, cadmium concentration and chronic bronchitis. Adjusted odds ratios, 95% confidence intervals were computed. RESULTS: There was a significant interaction (OR=1.33, CI = [1.01, 1.74]) between chronic bronchitis and blood cadmium level on the presence of myocardial infarction. For 1 µg/L increase in cadmium level, people with chronic bronchitis had 1.65 (1.24 × 1.33) times the odds of having myocardial infarction, while those without chronic bronchitis would be only 1.24 times as likely having the outcome (OR = 1.24, CI = [1.05, 1.46]). CONCLUSION: Findings highlights the role of chronic bronchitis on the relationship between blood cadmium concentration and myocardial infarction. Prospective cohort designs are needed to confirm these findings.


Asunto(s)
Bronquitis Crónica , Infarto del Miocardio , Adulto , Bronquitis Crónica/epidemiología , Cadmio , Estudios Transversales , Humanos , Infarto del Miocardio/epidemiología , Encuestas Nutricionales , Prevalencia , Estudios Prospectivos
4.
PLoS One ; 15(10): e0240749, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33057426

RESUMEN

OBJECTIVES: This study used a health belief theory derived framework and structural equation model to examine moderators, mediators, and direct and indirect predictors of childhood vaccination. METHODS: A secondary analysis was conducted using data collected from a cross-sectional survey of a random sample of 1599 parents living in urban and rural areas of Mysore district, India. Applying two-stage probability proportionate-to-size sampling, adolescent girls attending 7th through 10th grades in 23 schools were selected to take home a questionnaire to be answered by their parents to primarily assess HPV vaccine intentions. Parents were also asked whether their children had received one dose of Bacillus Calmette-Guérin; three doses of Diphtheria, Pertussis, Tetanus; three doses of oral Polio vaccine; and one dose of Measles vaccine. In addition, parents were asked about their attitudes towards childhood vaccination. RESULTS: Out of the 1599 parents, 52.2% reported that their children had received all the routine vaccines (fully vaccinated); 42.7% reported their children had missed at least one routine vaccine, and 5.2% reported that their children had missed all routine vaccinations. Perceptions about the benefits/facilitators to childhood vaccination significantly predicted the full vaccination rate (standardized regression coefficient (ß) = 0.29) directly and mediated the effect of parental education (ß = 0.11) and employment (ß = -0.06) on the rate of full vaccination. Parental education was significantly associated indirectly with higher rates of full vaccination (ß = 0.11). Parental employment was significantly associated indirectly with decreasing rates of full vaccination (ß = -0.05). Area of residence moderated the role of religion (ß = 0.24) and the 'number of children' in a family (ß = 0.33) on parental perceptions about barriers to childhood vaccination. The model to data fit was acceptable (Root Mean Square Error of Approximation = 0.02, 95% CI 0.018 to 0.023; Comparative Fit Index = 0.92; Tucker-Lewis Index = 0.91). CONCLUSIONS: Full vaccination rate was relatively low among children in Mysore, especially among parents who were unsure about the benefits of routine vaccination and those with low educational levels. Interventions increasing awareness of the benefits of childhood vaccination that target rural parents with lower levels of education may help increase the rate of full childhood vaccination in India.


Asunto(s)
Análisis de Mediación , Modelos Teóricos , Vacunación , Adulto , Niño , Femenino , Conocimientos, Actitudes y Práctica en Salud , Humanos , India , Análisis de Clases Latentes , Masculino
5.
Health Educ Behav ; 47(5): 696-705, 2020 10.
Artículo en Inglés | MEDLINE | ID: mdl-32696676

RESUMEN

Background. Electronic cigarettes (e-cigarettes) are the most commonly used tobacco product among adolescents. We aimed to identify factors associated with e-cigarette susceptibility and curiosity among adolescents who are and are not susceptible to cigarette smoking. Method. Data were drawn from the 2018 U.S. National Youth Tobacco Survey. The study sample comprised 13,428 never cigarette or e-cigarette users. Four distinct weighted multivariable regression models were performed to assess associations between covariates and e-cigarette curiosity and susceptibility. Results. Among adolescents susceptible to smoking cigarettes, non-Hispanic (NH) Black participants were less likely to be susceptible to (adjusted odds ratio [aOR] = 0.42, 95% confidence interval [CI] [0.26, 0.67]) and curious about (aOR = 0.61, 95% CI [0.39, 0.95]) e-cigarettes than NH Whites. Among adolescents nonsusceptible to smoking cigarettes, Hispanics were more susceptible to (aOR = 1.33, 95% CI [1.04, 1.71]) and curious about (aOR = 1.29, 95% CI [1.02, 1.62]) e-cigarettes than NH Whites. Among adolescents (both susceptible and nonsusceptible to smoking cigarettes), being female, exposure to e-cigarette aerosol in public places, exposure to e-cigarette ads at point-of-sale, and having low perceived harm and addictiveness of e-cigarettes versus cigarettes were associated with having greater odds of susceptibility toward and curiosity about e-cigarette use. Conclusions. Future regulatory policies and tobacco control prevention campaigns should focus on increasing health awareness (e.g., potential harm and addictiveness) of e-cigarettes among adolescents and restrict marketing and the use of e-cigarettes in public places.


Asunto(s)
Fumar Cigarrillos , Sistemas Electrónicos de Liberación de Nicotina , Vapeo , Adolescente , Estudios Transversales , Conducta Exploratoria , Femenino , Humanos , Fumar , Nicotiana
6.
Women Health ; 59(7): 815-827, 2019 08.
Artículo en Inglés | MEDLINE | ID: mdl-30714499

RESUMEN

The numbers of perinatal human immunodeficiency virus (HIV) infections in the United States have continued to decline, but the prevalence of female adults and adolescents living with diagnosed HIV infection continues to rise. Opportunities still exist to prevent mother-to child HIV transmission. The objective of this study was to identify demographics, HIV risk, and testing behaviors among pregnant women and to compare these characteristics by HIV testing site type. Multivariable analyses were conducted to examine demographics, HIV risk, and testing behaviors among 24,836 records of pregnant women publicly tested for HIV in the state of Florida in 2012. The testing records indicated that Latina and non-Hispanic black (NHB) women had decreased odds of reporting partner risk compared to those from non-Hispanic white women (Latina: adjusted odds ratio [AOR] 0.20, 95 percent confidence interval [CI]: 0.14-0.28; and NHB AOR 0.14, 95 percent CI: 0.10-0.21), and women tested in prisons/jails had higher odds of reporting previous HIV testing compared to those tested in prenatal care sites (AOR 1.86, 95 percent CI: 1.03-3.39). An understanding of HIV risk and testing behaviors among pregnant women by site type may enhance current targeted testing and prevention strategies for pregnant women and facilitate timely linkage to care.


Asunto(s)
Infecciones por VIH/diagnóstico , Infecciones por VIH/psicología , Conductas Relacionadas con la Salud , Transmisión Vertical de Enfermedad Infecciosa/prevención & control , Tamizaje Masivo/estadística & datos numéricos , Complicaciones Infecciosas del Embarazo/diagnóstico , Mujeres Embarazadas/psicología , Adolescente , Adulto , Distribución por Edad , Etnicidad , Femenino , Florida/epidemiología , Infecciones por VIH/etnología , Infecciones por VIH/prevención & control , Humanos , Tamizaje Masivo/psicología , Persona de Mediana Edad , Embarazo , Complicaciones Infecciosas del Embarazo/epidemiología , Factores de Riesgo , Asunción de Riesgos , Conducta Sexual , Adulto Joven
7.
J Obstet Gynaecol Res ; 44(11): 2091-2100, 2018 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-30117218

RESUMEN

AIM: This study examined the determinants of attitudes and beliefs about human papillomavirus (HPV) infection, cervical cancer and HPV vaccine among parents of adolescent girls in Mysore, India. METHODS: A random sample of 800 parents who had at least one adolescent-aged daughter attending school were recruited for a survey. RESULTS: Most parents (n = 778; 97.3%) completed the survey. Compared to Hindus, Muslims were more likely to perceive that their daughters are susceptible to HPV infection (adjusted odds ratio [aOR]: 4.94; 95% confidence interval [CI]: 2.87, 8.49) or cervical cancer (aOR: 2.73; 95% CI: 1.55, 4.80). However, the likelihood of perceiving that daughters are susceptible to HPV infection (aOR: 0.94; 95% CI: 0.90, 0.98) or cervical cancer (aOR: 0.95; 95% CI: 0.92, 0.99) decreased with an increase in the age of the parents. Perceived severity of HPV infection (aOR: 0.36; 95% CI: 0.14, 0.97) and cervical cancer (aOR: 0.33; 95% CI: 0.15, 0.74) was lower among Muslims than Hindus. Muslims had lower odds of believing that HPV vaccine is safe (aOR: 0.47; 95% CI: 0.25, 0.89) or could protect against cervical cancer (aOR: 0.27; 95% CI: 0.16, 0.48), but were more likely to feel that HPV vaccination may cause girls to become more sexually active (aOR: 1.92; 95% CI: 1.09, 3.39). The odds of believing that HPV vaccine is effective increased with an increase in the age of the parents (aOR: 1.03; 95% CI: 1.003, 1.06). CONCLUSION: Among Indian parents, age and religion of parents are associated with parental attitudes and beliefs about the threat of HPV and cervical cancer as well as the risks and benefits of HPV vaccine.


Asunto(s)
Conocimientos, Actitudes y Práctica en Salud/etnología , Infecciones por Papillomavirus , Vacunas contra Papillomavirus , Padres , Neoplasias del Cuello Uterino , Adolescente , Adulto , Femenino , Humanos , India/etnología , Masculino , Persona de Mediana Edad
8.
Arch Psychiatr Nurs ; 32(3): 495-504, 2018 06.
Artículo en Inglés | MEDLINE | ID: mdl-29784236

RESUMEN

In the past few years we have become increasingly aware of strong associations between obesity and ADHD. Both conditions are major public health issues, affecting children, adolescents and adults alike. OBJECTIVE: This review seeks to (1) examine prior research on the association between ADHD and obesity in children and adolescents; (2) discuss mechanisms and consequent behavioral attributes to gain understanding of the path association between ADHD and obesity, (3) review studies examining the role of physical activity, medication, eating behavior and gender on the relationship between ADHD and obesity in children and adolescents. METHOD: PubMed, CINAHL and PsycINFO databases were used to search for studies whose subjects were children and adolescents, ages 0-17 years and whose publication years were from 2000 to 2016. After screening 31 studies were included in the review. RESULTS: The literature suggests that there is a significant association between ADHD and obesity. Further, the inattentive and impulsive behaviors that characterize ADHD could contribute to dis-regulated eating behaviors and a lack of motivation to engage in physical activity. In addition, it is proposed that medication, gender and physical activity play a role in mediating and moderating the relationship between ADHD and obesity.


Asunto(s)
Trastorno por Déficit de Atención con Hiperactividad/epidemiología , Ejercicio Físico , Conducta Alimentaria/psicología , Conducta Impulsiva/fisiología , Obesidad Infantil/epidemiología , Adolescente , Niño , Humanos
9.
Hisp Health Care Int ; 15(1): 27-34, 2017 03.
Artículo en Inglés | MEDLINE | ID: mdl-28558511

RESUMEN

INTRODUCTION: Latina women in the United States (US) are not only disproportionately affected by human immunodeficiency virus (HIV) infection but also underuse HIV prevention services, such as HIV testing. METHOD: HIV testing events were examined to describe the HIV testing behaviors and test results among Latinas tested in 2012 at publicly funded sites in Florida, United States. Multivariable logistic regression was used to assess the demographic characteristics associated with reports of previous testing and positive HIV test results. RESULTS: Of the 184,037 testing events, 87,569 (45.6%) were among non-Hispanic Blacks (NHBs), 47,926 (26.0%) non-Hispanic Whites (NHWs), 41,117 (22.3%) Latinas, 5,672 (3.1%) those with unknown race/ethnicity, and 1,753 (1.0%) other racial/ethnic groups. Compared to NHW and NHB women, Latinas testing for HIV were older (mean age = 32.1, NHW = mean age 30.3, NHB = mean age 30.0; p < .0001). Results indicated that women who reported previous HIV testing had decreased odds of being Latina (adjusted odds ratio = 0.90; 95% confidence interval [0.87, 0.94]). CONCLUSION: These findings indicate that Latinas are underusing HIV testing, and efforts are needed to increase the proportion of Latinas, especially younger Latinas, tested for HIV in Florida.


Asunto(s)
Población Negra/estadística & datos numéricos , Infecciones por VIH/prevención & control , Hispánicos o Latinos/psicología , Hispánicos o Latinos/estadística & datos numéricos , Tamizaje Masivo/psicología , Tamizaje Masivo/estadística & datos numéricos , Población Blanca/estadística & datos numéricos , Adulto , Población Negra/psicología , Etnicidad/psicología , Etnicidad/estadística & datos numéricos , Femenino , Florida , Humanos , Factores de Riesgo , Población Blanca/psicología , Adulto Joven
10.
J Occup Environ Med ; 59(2): 148-153, 2017 02.
Artículo en Inglés | MEDLINE | ID: mdl-28002353

RESUMEN

PURPOSE: The aim of this study was to assess relationship between exposure to particulate matter (PM) chemicals during pregnancy and the odd of having placental abruption. METHODS: The 2004 to 2007 Florida linked birth certificate records and the Environmental Protection Agency PM speciation data were used. We were interested in placental abruption. We computed adjusted odds ratios (ORs) and 95% confidence intervals (95% CIs). RESULTS: The odds for placental abruption were increased per interquartile range (IQR) increase in aluminum during the first trimester (OR = 1.10; CI =  1.02 to 1.18) and marginally during the entire pregnancy (OR =  1.06; CI =  0.94 to 1.19). The most substantial association was observed for elemental carbon exposure during the first trimester, resulting in 38% increased odd (OR = 1.09; CI  = 1.09 to 1.75) per IQR increase in elemental carbon. CONCLUSION: Women exposure to PM2.5 aluminum and elemental carbon during pregnancy has an increased odd of having placental abruption.


Asunto(s)
Desprendimiento Prematuro de la Placenta/epidemiología , Aluminio/toxicidad , Carbono/toxicidad , Exposición a Riesgos Ambientales/estadística & datos numéricos , Material Particulado/efectos adversos , Primer Trimestre del Embarazo , Adolescente , Adulto , Exposición a Riesgos Ambientales/efectos adversos , Femenino , Florida/epidemiología , Humanos , Incidencia , Oportunidad Relativa , Embarazo , Factores de Riesgo , Adulto Joven
11.
Medicine (Baltimore) ; 95(46): e5300, 2016 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-27861356

RESUMEN

Childhood acute lymphoblastic leukemia (ALL) occurs more frequently in males. Reasons behind sex differences in childhood ALL risk are unknown. In the present genome-wide association study (GWAS), we explored the genetic basis of sex differences by comparing genotype frequencies between male and female cases in a case-only study to assess effect-modification by sex.The case-only design included 236 incident cases of childhood ALL consecutively recruited at the Texas Children's Cancer Center in Houston, Texas from 2007 to 2012. All cases were non-Hispanic whites, aged 1 to 10 years, and diagnosed with confirmed B-cell precursor ALL. Genotyping was performed using the Illumina HumanCoreExome BeadChip on the Illumina Infinium platform. Besides the top 100 statistically most significant results, results were also analyzed by the top 100 highest effect size with a nominal statistical significance (P <0.05).The statistically most significant sex-specific association (P = 4 × 10) was with the single nucleotide polymorphism (SNP) rs4813720 (RASSF2), an expression quantitative trait locus (eQTL) for RASSF2 in peripheral blood. rs4813720 is also a strong methylation QTL (meQTL) for a CpG site (cg22485289) within RASSF2 in pregnancy, at birth, childhood, and adolescence. cg22485289 is one of the hypomethylated CpG sites in ALL compared with pre-B cells. Two missense SNPs, rs12722042 and 12722039, in the HLA-DQA1 gene yielded the highest effect sizes (odds ratio [OR] ∼ 14; P <0.01) for sex-specific results. The HLA-DQA1 SNPs belong to DQA1*01 and confirmed the previously reported male-specific association with DQA1*01. This finding supports the proposed infection-related etiology in childhood ALL risk for males. Further analyses revealed that most SNPs (either direct effect or through linkage disequilibrium) were within active enhancers or active promoter regions and had regulatory effects on gene expression levels.Cumulative data suggested that RASSF2 rs4813720, which correlates with increased RASSF2 expression, may counteract the suppressor effect of estrogen-regulated miR-17-92 on RASSF2 resulting in protection in males. Given the amount of sex hormone-related mechanisms suggested by our findings, future studies should examine prenatal or early postnatal programming by sex hormones when hormone levels show a large variation.


Asunto(s)
Cadenas alfa de HLA-DQ/genética , Leucemia-Linfoma Linfoblástico de Células Precursoras/genética , Proteínas Supresoras de Tumor/genética , Niño , Preescolar , Femenino , Predisposición Genética a la Enfermedad , Estudio de Asociación del Genoma Completo , Genotipo , Humanos , Lactante , Masculino , Polimorfismo de Nucleótido Simple , Riesgo , Factores Sexuales , Texas
12.
J Asthma ; 53(3): 330-8, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-26364659

RESUMEN

OBJECTIVES: Asthma is the most common chronic pediatric condition (14%) and the leading cause of school absenteeism in the USA. However, little is known about asthma prevalence and distribution in schoolchildren in the Florida Keys region (Monroe County). Thus, the objectives of this study were to assess asthma prevalence, symptoms, cost and distribution in schoolchildren in the Florida Keys region and to pinpoint where asthma management services are most needed. METHODS: Cross-sectional survey data on asthma prevalence, symptoms and socio-demographics was collected and analyzed by race, sex, grade and zip code. A total of 2313 parents of schoolchildren in the Florida Keys completed the adapted Harlem Empowerment Zone Asthma Initiative Questionnaire. The questionnaire was distributed to school principals, who sent them home with students to be filled out by parents or caregivers. We also analyzed data from the online Monroe County 2012 Florida Youth Tobacco Survey, the 2011 Florida CHARTS, the Medical Expenditures Panel Survey, and emergency departments (ED). Data were analyzed by race, sex, and grade. RESULTS: In total 14.5% of respondents had been told their child had asthma and 9.6% reported their child had wheezing in the last 12 months. The prevalence was higher in the Lower Keys and Key West regions. Parents from households where anyone smoked cigarettes (OR 1.52, 95% CI 1.11-2.09) and those who had a male child (1.53, 1.17-2.00) more often reported that their child had asthma. The rate of asthma-related ED visits for Black non-Hispanic schoolchildren (1202 per 100,000) was substantially higher than the numbers for White (250.2 per 100,000) and Hispanic schoolchildren (325.1 per 100,000). Most of the direct cost of asthma was concentrated in children in grades four through seven ($1236.02-$2147.02 per child). CONCLUSIONS: The asthma prevalence in a sample of schoolchildren in the Florida Keys region was comparable to the nationwide prevalence. Black non-Hispanic schoolchildren had more asthma-related ED visits that White and Hispanic schoolchildren. Most of the direct cost of asthma is concentrated in children in late elementary through early middle school grades. Interventions are needed, particularly targeting Black schoolchildren in late elementary through early middle school grades in Lower Keys and Key West region.


Asunto(s)
Asma/epidemiología , Absentismo , Adolescente , Negro o Afroamericano , Distribución por Edad , Asma/etnología , Niño , Estudios Transversales , Servicio de Urgencia en Hospital , Femenino , Florida , Hispánicos o Latinos , Humanos , Masculino , Evaluación de Necesidades , Distribución por Sexo , Fumar/epidemiología , Factores Socioeconómicos , Población Blanca
13.
Asian Pac J Cancer Prev ; 15(19): 8371-6, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-25339031

RESUMEN

BACKGROUND: The use of statistical methods has become an imperative tool in breast cancer survival data analysis. The purpose of this study was to develop the best statistical probability model using the Bayesian method to predict future survival times for the black non-Hispanic female breast cancer patients diagnosed during 1973- 2009 in the U.S. MATERIALS AND METHODS: We used a stratified random sample of black non-Hispanic female breast cancer patient data from the Surveillance Epidemiology and End RESULTS (SEER) database. Survival analysis was performed using Kaplan-Meier and Cox proportional regression methods. Four advanced types of statistical models, Exponentiated Exponential (EE), Beta Generalized Exponential (BGE), Exponentiated Weibull (EW), and Beta Inverse Weibull (BIW) were utilized for data analysis. The statistical model building criteria, Akaike Information Criteria (AIC), Bayesian Information Criteria (BIC), and Deviance Information Criteria (DIC) were used to measure the goodness of fit tests. Furthermore, we used the Bayesian approach to obtain the predictive survival inferences from the best-fit data based on the exponentiated Weibull model. RESULTS: We identified the highest number of black non-Hispanic female breast cancer patients in Michigan and the lowest in Hawaii. The mean (SD), of age at diagnosis (years) was 58.3 (14.43). The mean (SD), of survival time (months) for black non- Hispanic females was 66.8 (30.20). Non-Hispanic blacks had a significantly increased risk of death compared to Black Hispanics (Hazard ratio: 1.96, 95%CI: 1.51-2.54). Compared to other statistical probability models, we found that the exponentiated Weibull model better fits for the survival times. By making use of the Bayesian method predictive inferences for future survival times were obtained. CONCLUSIONS: These findings will be of great significance in determining appropriate treatment plans and health-care cost allocation. Furthermore, the same approach should contribute to build future predictive models for any health related diseases.


Asunto(s)
Población Negra/estadística & datos numéricos , Neoplasias de la Mama/mortalidad , Etnicidad/estadística & datos numéricos , Modelos Estadísticos , Teorema de Bayes , Femenino , Estudios de Seguimiento , Humanos , Persona de Mediana Edad , Pronóstico , Programa de VERF , Tasa de Supervivencia
14.
Arch Gynecol Obstet ; 286(6): 1349-55, 2012 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-22797696

RESUMEN

OBJECTIVE: To assess the impact of the day of birth on twin mortality in a population sample. METHODS: We analyzed weekend versus weekday twin births from the United States national twin birth data for the periods 1989-2002. We computed adjusted hazard ratios (HR) and 95% confidence intervals (CI) to assess the association between infant mortality and weekday of birth using the Cox proportional hazards model. RESULTS: The crude rates for all types of mortality were found to be significantly higher for twins born on weekends than on weekdays. After adjustment, only post-neonatal mortality risk was higher on weekends as compared to weekdays [Hazards ratio (HR)=1.19, CI: 1.04, 1.36]. Twins of white mothers were at greater risk for neonatal death (HR=1.16, CI: 1.08, 1.24) but were less likely to experience post-neonatal death (HR=0.68, CI: 0.64, 0.76) as compared to twins of black mothers. We found an interaction between maternal age and weekday of birth. Twins born on weekends to teenage mothers (age<18) had a 35% greater risk for neonatal death (HR=1.35, CI: 1.06, 1.71) while those born on weekends to older mothers did not show elevated risk for any of the mortality indices. CONCLUSION: Increased risks for post-neonatal death are significantly higher amongst twins born on weekends as compared to weekdays. Further research is required to identify the detailed differences in structure and procedures that result in the disadvantage associated with weekend birth.


Asunto(s)
Atención Posterior/estadística & datos numéricos , Mortalidad Infantil , Embarazo Gemelar/estadística & datos numéricos , Adolescente , Adulto , Negro o Afroamericano/estadística & datos numéricos , Factores de Edad , Cesárea/estadística & datos numéricos , Intervalos de Confianza , Parto Obstétrico , Escolaridad , Femenino , Humanos , Lactante , Mortalidad Infantil/etnología , Recién Nacido , Masculino , Estado Civil/estadística & datos numéricos , Embarazo , Modelos de Riesgos Proporcionales , Factores Sexuales , Fumar , Factores de Tiempo , Estados Unidos/epidemiología , Población Blanca/estadística & datos numéricos , Adulto Joven
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA