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1.
BMC Public Health ; 23(1): 1431, 2023 07 26.
Artículo en Inglés | MEDLINE | ID: mdl-37495959

RESUMEN

BACKGROUND: Barriers to healthcare access for women have a substantial influence on maternal and child health. By removing barriers to accessing healthcare, several sustainable development goals can be achieved. The goal of this study, based on the dominance analysis, was to examine how living standards and spousal education play role in removing barriers to healthcare access for women in Bangladesh. METHODS: The study used the nationally representative Bangladesh Demographic and Health Survey (BDHS), 2017-18 data. A binary logistic regression model was applied for analyzing different types of health access barriers in the study. Additionally, a dominance analysis was conducted to identify the most responsible factors for removing barriers. RESULTS: In Bangladesh, 66% of women faced at least one barrier in accessing healthcare. The results obtained from logistic regression and dominance analysis revealed that women's standard of living and spousal education explained the highest variation of having at least one barrier in accessing healthcare. Specifically, a high standard of living explained 24% of the total explained variation (OR 0.56, 95% CI 0.52-0.62), while both spousal education accounted for 27% (OR 0.49, 95% CI 0.45-0.54) of the total explained variation. The regression results also showed that women with higher standards of living as well as educated women having educated partners had lower odds of facing barriers in getting permission (OR 0.87, 95% CI 0.76-1.00 and OR 0.66, 95% CI 0.58-0.75) to go for advice/treatment, obtaining money (OR 0.43, 95% CI 0.39-0.47 and OR 0.37, 95% CI 0.34-0.40), distance to a health facility (OR 0.60, 95% CI 0.55-0.66 and OR 0.70, 95% CI 0.65-0.76), and not wanting to go alone (OR 0.72, 95% CI 0.66-0.89 and OR 0.75, 95% CI 0.69-0.81) for getting medical advice/treatment. CONCLUSION: The findings of the study suggest paying extra attention to the spousal education and living standard of women to strengthen and reform the existing strategies and develop beneficial interventions to enhance unhindered accessibility to healthcare facilities for women.


Asunto(s)
Familia , Accesibilidad a los Servicios de Salud , Niño , Femenino , Humanos , Bangladesh , Factores Socioeconómicos , Escolaridad
2.
BMC Med Res Methodol ; 22(1): 169, 2022 06 11.
Artículo en Inglés | MEDLINE | ID: mdl-35689190

RESUMEN

BACKGROUND: Separation or monotone likelihood may exist in fitting process of the accelerated failure time (AFT) model using maximum likelihood approach when sample size is small and/or rate of censoring is high (rare event) or there is at least one strong covariate in the model, resulting in infinite estimates of at least one regression coefficient. METHODS: This paper investigated the properties of the maximum likelihood estimator (MLE) of the regression parameters of the AFT models for small sample and/or rare-event situation and addressed the problems by introducing a penalized likelihood approach. The penalized likelihood function and the corresponding score equation is derived by adding a penalty term to the existing likelihood function, which was originally proposed by Firth (Biometrika, 1993) for the exponential family models. Further, a post-hoc adjustment of intercept and scale parameters is discussed keeping them out of penalization to ensure accurate prediction of survival probability. The penalized method was illustrated for the widely used log-location-scale family models such as Weibull, Log-normal and Log-logistic distributions and compared the models and methods uisng an extensive simulation study. RESULTS: The simulation study, performed separately for each of the log-location-scale models, showed that Firth's penalized likelihood succeeded to solve the problem of separation and achieve convergence, providing finite estimates of the regression coefficients, which are not often possible by the MLE. Furthermore, the proposed penalized method showed substantial improvement over MLE by providing smaller amount of bias, mean squared error (MSE), narrower confidence interval and reasonably accurate prediction of survival probabilities. The methods are illustrated using prostate cancer data with existence of separation, and results supported the simulation findings. CONCLUSION: When sample size is small (≤ 50) or event is rare (i.e., censoring proportion is high) and/or there is any evidence of separation in the data, we recommend to use Firth's penalized likelihood method for fitting AFT model.


Asunto(s)
Proyectos de Investigación , Sesgo , Simulación por Computador , Humanos , Funciones de Verosimilitud , Masculino , Tamaño de la Muestra
3.
BMC Pregnancy Childbirth ; 22(1): 476, 2022 Jun 13.
Artículo en Inglés | MEDLINE | ID: mdl-35698030

RESUMEN

BACKGROUND: There exists a lack of research in explaining the link between dropout from school and antenatal care (ANC) visits of women during pregnancy in Bangladesh. The aim of this study is to investigate how the drop out from school influences the ANC visits after controlling the relevant covariates using an appropriate count regression model. METHODS: The association between the explanatory variables and the outcome of interest, ANC visits, have been performed using one-way analysis of variance/independent sample t-test. To examine the adjusted effects of covariates on the marginal mean of count data, Marginalized Poison-Poisson mixture regression model has been fitted. RESULTS: The estimated incidence rate of antenatal care visits was 10.6% lower for the mothers who were not continued their education after marriage but had at least 10 years of schooling (p-value <0.01) and 20.2% lower for the drop-outed mothers (p-value <0.01) than the mothers who got continued their education after marriage. CONCLUSIONS: To ensure the WHO recommended 8+ ANC visits for the pregnant women of Bangladesh, it is essential to promote maternal education so that at least ten years of schooling should be completed by a woman and dropout from school after marriage should be prevented.


Asunto(s)
Mujeres Embarazadas , Atención Prenatal , Bangladesh/epidemiología , Escolaridad , Femenino , Humanos , Aceptación de la Atención de Salud , Embarazo , Instituciones Académicas
4.
BMC Womens Health ; 22(1): 176, 2022 05 14.
Artículo en Inglés | MEDLINE | ID: mdl-35568941

RESUMEN

BACKGROUND: Unmet need for family planning (FP) is a core concept in designing FP programmes and reduction of unmet need for FP can improve reproductive and maternal health services. Bangladesh is still away from achieving the target regarding unmet need for FP. This study aimed to explore the composite effect of economic status and place of residence on unmet need for FP among currently married women of reproductive age in Bangladesh after controlling the effect of other selected covariates. METHODS: The study used the data extracted from the Bangladesh Demographic and Health Survey (BDHS) 2017-2018, which is a nationally representative survey implemented using a stratified two-stage cluster sample design. A total of 13,031 currently married women of reproductive age were included in the final analysis. Binary logistic regression model has been employed to identify the factors influencing the unmet need for FP. Model-I investigated the effect of composite variable place-wealth on unmet need for FP and Model-II examined the effect of place-wealth on unmet need for FP after adjusting for the effect of other selected covariates. The Odds Ratios with p-values were reported to identify significant covariates. RESULTS: The rate of unmet need for FP was 15.48%. The composite factor of economic status and place of residence had significant influence on unmet need for FP in both models. Generally, rural women were significantly more likely to have unmet need for FP than their urban counterparts. In particular, women from rural areas and belong to rich families had the highest likelihoods of unmet need for FP. The other selected covariates also had significant influence on unmet need for FP. CONCLUSION: This study shows that rural women had higher odds of unmet need for FP than urban women. The healthcare providers and stakeholders should take necessary actions to motivate women to use contraceptive specially the women who are residing in the rural areas.


Asunto(s)
Conducta Anticonceptiva , Anticoncepción , Bangladesh , Estatus Económico , Servicios de Planificación Familiar , Femenino , Humanos , Factores Socioeconómicos
5.
BMC Public Health ; 22(1): 1243, 2022 06 23.
Artículo en Inglés | MEDLINE | ID: mdl-35733171

RESUMEN

BACKGROUND: The simultaneity of undernourishment among child and overweight/obesity among mothers in lower-and-middle-income-countries (LMICs) introduces a new nutrition dilemma, known as double burden of malnutrition (DBM). Amidst of such paradox, the hike of caesarean section (CS) delivery is also triggering child undernutrition and maternal obesity. A gap of knowledge regarding the effect of mode of delivery on DBM still persists. The study aims to explore the association between DBM at household level and mode of delivery over time in LMICs. METHOD: The study used data from recent four consecutive waves of Bangladesh Demographic and Health Survey (BDHS) ranging from BDHS 2007 to BDHS 2017. It considered the mother-child pairs from data where mothers were non-pregnant women aged 15-49 years having children born in last 3 years preceding the survey. Bivariate analysis and Logistic Regression were performed to explore the unadjusted and adjusted effect of covariates on DBM. An interaction term of mode of delivery and survey year was considered in regression model. RESULTS: The study evinces a sharp increase of DBM rate in Bangladesh from 2007 to 2017 (2.4% vs. 6.4%). The prevalence of DBM in household level among the children delivered by CS is more than two times of those born by normal delivery (8.2% vs. 3.5%). The multivariate analysis also indicates that the children born by CS delivery are more likely to be affected by DBM at household level significantly than those born by normal delivery in each waves. Moreover, the odds ratio (OR) of DBM at household is increased by 43% for one unit change in time for normal delivery whereas CS delivery births have 12% higher odds of DBM at household level with one unit change in time. CONCLUSION: The study discloses a drastic increase of rate of DBM among mother-child pairs over the time. It stipulates inflated risk of DBM at household with time for both mode of delivery but the children with CS delivery are at more risk to the vulnerability of DBM at household level. The study recommends a provision of special care to the mothers with CS delivery to reduce DBM at household.


Asunto(s)
Cesárea , Desnutrición , Bangladesh/epidemiología , Composición Familiar , Femenino , Encuestas Epidemiológicas , Humanos , Desnutrición/epidemiología , Relaciones Madre-Hijo , Madres , Sobrepeso/epidemiología , Embarazo , Prevalencia , Factores Socioeconómicos
6.
BMC Public Health ; 22(1): 1037, 2022 05 24.
Artículo en Inglés | MEDLINE | ID: mdl-35610604

RESUMEN

BACKGROUND: Although Bangladesh has an impressive track record in the reduction of maternal and child mortality, tetanus, a dreadful disease, impedes the way to achieve Sustainable Development Goal (SDG) in this respect. Sufficient doses of tetanus toxoid containing vaccine during pregnancy ensure immunity against tetanus to mothers as well as newborns. Since inequalities persist across vaccination programs globally, in this paper, an attempt has been made to examine whether tetanus toxoid immunization (TTI) status among the women of reproductive age in Bangladesh for their most recent live birth born preceding 2 years of the survey changes with their living standard index (LSI). METHODS: Five domains of deprivation such as energy use, improved sanitation, drinking water, housing and assets ownership were used to compute the LSI using a approach proposed by Alkire and Foster. The adjusted association between LSI and TTI was established by using logistic regression model. For the purpose of statistical analysis, a nationally representative cross-sectional data extracted from Bangladesh Multiple Indicator Cluster Survey (BMICS), 2019 have been used. RESULT: The bivariate analysis revealed that 79.5% (95% CI 78.0-81.0) of women with low and 83.1% (95% CI 81.3-84.9) with moderate living standards had sufficient vaccination coverage for their most recent pregnancies while this percentage was higher for the women who belonged to high living standard (85.2, 95% CI = 84.2-86.2). A strong evidence for greater odds of sufficient immunization with TT among the women maintaining a high standard of living (AOR = 1.24, 95% CI = 1.08-1.42, p < 0.01) was found from regression analysis. CONCLUSION: The results depict existing living standard disparity with respect to TT vaccination coverage among women in Bangladesh. Present research suggests that immunization campaigns need to be conducted especially for the disadvantaged people to improve their health care and immunization service utilization among women within the age bracket of 15 to 49. This study proposed a scientific way to enhance TT vaccination among Bangladeshi women, which could help Bangladesh attain a widespread tetanus protection and thus, meet the SDGs for maternal and child mortality reduction.


Asunto(s)
Toxoide Tetánico , Tétanos , Bangladesh , Niño , Preescolar , Estudios Transversales , Femenino , Humanos , Inmunización , Recién Nacido , Embarazo , Factores Socioeconómicos , Tétanos/prevención & control , Vacunación
7.
BMC Public Health ; 22(1): 1980, 2022 10 28.
Artículo en Inglés | MEDLINE | ID: mdl-36307785

RESUMEN

BACKGROUND: Several studies have identified factors influencing infant mortality, but, to the best of knowledge, no studies assessed the factors considering unequal effects on different survival times of infant mortality in Bangladesh. In this study, it was examined how a set of covariates behaves on different quantile survival times related with the infant mortality. METHODS: Data obtained from Bangladesh multiple indicator cluster survey (BMICS), 2019 have been used for purpose of the study. A total of 9,183 reproductive women were included in the study who gave their most recent live births within two years preceding the survey. Kaplan-Meier product limit approach has been applied to find the survival probabilities for the infant mortality, and the log-rank test has also been used to observe the unadjusted association between infant mortality and selected covariates. To examine the unequal effects of the covariates on different quantile survival time of infant mortality, the Laplace survival regression model has been fitted. The results obtained from this model have also been compared with the results obtained from the classical accelerated failure time (AFT) and Cox proportional hazard (Cox PH) models. RESULTS: The infant mortality in Bangladesh is still high which is around 28 per 1000 live births. In all the selected survival regression models, the directions of regression coefficients were similar, but the heterogenous effects of covariates on survival time were observed in quantile survival model. Several correlates such as maternal age, education, gender of index child, previous birth interval, skilled antenatal care provider, immediate breastfeeding etc. were identified as potential factors having higher impact on initial survival times. CONCLUSION: Infant mortality was significantly influenced by the factors more in the beginning of the infant's life period than at later stages, suggesting that receiving proper care at an early age will raise the likelihood of survival. Policy-making interventions are required to reduce the infant deaths, and the study findings may assist policy makers to revise the programs so that the sustainable development goal 3.2 can be achieved in Bangladesh.


Asunto(s)
Intervalo entre Nacimientos , Mortalidad Infantil , Lactante , Niño , Femenino , Humanos , Embarazo , Bangladesh/epidemiología , Factores de Riesgo , Nacimiento Vivo , Factores Socioeconómicos
8.
Environ Health Prev Med ; 24(1): 65, 2019 Nov 27.
Artículo en Inglés | MEDLINE | ID: mdl-31775610

RESUMEN

BACKGROUND: Little is known regarding the effect of exposure to biomass fuel smoke inhalation on respiratory symptoms in the Bangladeshi population which is a major health hazard in most of the developing countries. This study aims to explore the association between respiratory symptoms and biomass fuel smoke exposure among children under 5 years of age. METHODS: Data were extracted from the Bangladesh Urban Health Survey conducted in 2013. A total of 10,575 mothers with at least one surviving children were selected. Respiratory symptoms among children under 5 years of age were considered as the primary outcome. Sequential multiple logistic regression models were used to observe the association between respiratory symptoms and biomass fuel smoke exposure adjusting the effect of residential factors and mother and child characteristics. RESULTS: Around 40% of the mothers exclusively used biomass fuel irrespective of the kitchen location and 54% of them were habituated in indoor cooking. The prevalence of respiratory symptoms of under-five children among in-house and outdoor biomass fuel users was 23.0% and 21.9%, respectively. Results of fitted multiple logistic regression models showed that the odds of having respiratory symptoms among children under 5 years of age were increased due to in-house biomass fuel use [OR = 1.18; 95% CI, 1.04-1.36] compared with the non-biomass user. An increased risk of respiratory symptoms was also significantly associated with mother's birth complication [OR = 1.51; 95% CI, 1.36-1.67], non-government organization (NGO) membership of mothers [OR = 1.32; 95% CI, 1.16-1.51], age of the child (6-23m) [OR = 1.29; 95% CI, 1.10-1.52], and nutritional status (stunting) [OR = 1.18; 95% CI, 1.06-1.31]. CONCLUSION: This study found the use of in-house biomass fuel as a significant risk factor associated with respiratory symptoms of children under 5 years of age. More longitudinal studies should be designed to establish a causal relationship between HAP (household air pollution) and respiratory symptoms among children with more direct measures of HAP and clinical procedure.


Asunto(s)
Contaminantes Atmosféricos/efectos adversos , Exposición por Inhalación/efectos adversos , Trastornos Respiratorios/epidemiología , Trastornos Respiratorios/etiología , Humo/efectos adversos , Contaminación del Aire Interior/efectos adversos , Bangladesh/epidemiología , Biomasa , Preescolar , Culinaria/métodos , Estudios Transversales , Femenino , Encuestas Epidemiológicas , Humanos , Lactante , Recién Nacido , Masculino , Madres , Prevalencia , Factores de Riesgo , Salud Urbana
9.
BMC Int Health Hum Rights ; 17(1): 3, 2017 01 28.
Artículo en Inglés | MEDLINE | ID: mdl-28129793

RESUMEN

BACKGROUND: The cause-specific under-five mortality of Bangladesh has been studied by fitting cumulative incidence function (CIF) based Fine and Gray competing risk regression model (1999). For the purpose of analysis, Bangladesh Demographic and Health Survey (BDHS), 2011 data set was used. METHODS: Three types of mode of mortality for the under-five children are considered. These are disease, non-disease and other causes. Product-Limit survival probabilities for the under-five child mortality with log-rank test were used to select a set of covariates for the regression model. The covariates found to have significant association in bivariate analysis were only considered in the regression analysis. RESULTS: Potential determinants of under-five child mortality due to disease is size of child at birth, while gender of child, NGO (non-government organization) membership of mother, mother's education level, and size of child at birth are due to non-disease and age of mother at birth, NGO membership of mother, and mother's education level are for the mortality due to other causes. CONCLUSION: Female participation in the education programs needs to be increased because of the improvement of child health and government should arrange family and social awareness programs as well as health related programs for women so that they are aware of their child health.


Asunto(s)
Mortalidad del Niño , Mortalidad Infantil , Modelos Estadísticos , Madres/educación , Bangladesh , Preescolar , Encuestas Epidemiológicas , Humanos , Incidencia , Lactante , Recién Nacido , Factores de Riesgo , Factores Socioeconómicos
10.
J Biol Chem ; 290(21): 13178-90, 2015 May 22.
Artículo en Inglés | MEDLINE | ID: mdl-25882848

RESUMEN

When V. cholerae encounters nutritional stress, it activates (p)ppGpp-mediated stringent response. The genes relA and relV are involved in the production of (p)ppGpp, whereas the spoT gene encodes an enzyme that hydrolyzes it. Herein, we show that the bacterial capability to produce (p)ppGpp plays an essential role in glucose metabolism. The V. cholerae mutants defective in (p)ppGpp production (i.e. ΔrelAΔrelV and ΔrelAΔrelVΔspoT mutants) lost their viability because of uncontrolled production of organic acids, when grown with extra glucose. In contrast, the ΔrelAΔspoT mutant, a (p)ppGpp overproducer strain, exhibited better growth in the presence of the same glucose concentration. An RNA sequencing analysis demonstrated that transcriptions of genes consisting of an operon for acetoin biosynthesis were markedly elevated in N16961, a seventh pandemic O1 strain, but not in its (p)ppGpp(0) mutant during glucose-stimulated growth. Transposon insertion in acetoin biosynthesis gene cluster resulted in glucose-induced loss of viability of the ΔrelAΔspoT mutant, further suggesting the crucial role of acetoin production in balanced growth under glucose-rich environments. Additional deletion of the aphA gene, encoding a negative regulator for acetoin production, failed to rescue the (p)ppGpp(0) mutant from the defective glucose-mediated growth, suggesting that (p)ppGpp-mediated acetoin production occurs independent of the presence of AphA. Overall, our results reveal that (p)ppGpp, in addition to its well known role as a stringent response mediator, positively regulates acetoin production that contributes to the successful glucose metabolism and consequently the proliferation of V. cholerae cells under a glucose-rich environment, a condition that may mimic the human intestine.


Asunto(s)
Acetoína/metabolismo , Regulación Bacteriana de la Expresión Génica/efectos de los fármacos , Glucosa/metabolismo , Guanosina Pentafosfato/farmacología , Ligasas/metabolismo , Vibrio cholerae/crecimiento & desarrollo , Vibrio cholerae/metabolismo , Ácidos/metabolismo , Supervivencia Celular , Fermentación , Secuenciación de Nucleótidos de Alto Rendimiento , Humanos , Ligasas/genética , Mutación/genética , ARN Bacteriano/genética , Vibrio cholerae/genética
11.
Stat Med ; 35(11): 1819-33, 2016 May 20.
Artículo en Inglés | MEDLINE | ID: mdl-26626276

RESUMEN

In generalized estimating equations (GEE), the correlation between the repeated observations on a subject is specified with a working correlation matrix. Correct specification of the working correlation structure ensures efficient estimators of the regression coefficients. Among the criteria used, in practice, for selecting working correlation structure, Rotnitzky-Jewell, Quasi Information Criterion (QIC) and Correlation Information Criterion (CIC) are based on the fact that if the assumed working correlation structure is correct then the model-based (naive) and the sandwich (robust) covariance estimators of the regression coefficient estimators should be close to each other. The sandwich covariance estimator, used in defining the Rotnitzky-Jewell, QIC and CIC criteria, is biased downward and has a larger variability than the corresponding model-based covariance estimator. Motivated by this fact, a new criterion is proposed in this paper based on the bias-corrected sandwich covariance estimator for selecting an appropriate working correlation structure in GEE. A comparison of the proposed and the competing criteria is shown using simulation studies with correlated binary responses. The results revealed that the proposed criterion generally performs better than the competing criteria. An example of selecting the appropriate working correlation structure has also been shown using the data from Madras Schizophrenia Study.


Asunto(s)
Modelos Estadísticos , Análisis por Conglomerados , Simulación por Computador , Femenino , Humanos , Modelos Logísticos , Estudios Longitudinales , Masculino , Análisis de Regresión , Esquizofrenia/diagnóstico
12.
BMC Public Health ; 16: 934, 2016 09 05.
Artículo en Inglés | MEDLINE | ID: mdl-27595598

RESUMEN

BACKGROUND: The distribution of birth intervals can be used to draw attention to important characteristics of dynamics of fertility process. The main objective of this paper is to examine the effects of socioeconomic, demographic and proximate determinants on the length of birth intervals of women of Bangladesh and also to see whether the effects are changed over the years. METHODS: Birth intervals can be considered as correlated time-to-event data because two or more birth intervals could correspond to a single mother. Moreover, women from the same neighborhood usually share certain unobserved characteristics, which may also lead to correlated time-to-event data (birth interval). A parametric random effect (frailty) model is used to analyze correlated birth interval data obtained from three Bangladesh Demographic and Health Surveys (BDHS 2004, 2007, and 2011). RESULTS: The results show that alongside different socioeconomic, demographic determinants, unobserved community and mother effects have considerable impact on birth interval in Bangladesh. However, the effects of different factors on birth interval changes in a small scale over the duration of 2004-2011. CONCLUSIONS: Efficient policy is a priority for promoting longer birth spacing and achieving a decline in fertility.


Asunto(s)
Intervalo entre Nacimientos/estadística & datos numéricos , Tasa de Natalidad/tendencias , Dinámica Poblacional , Adolescente , Adulto , Bangladesh , Demografía , Femenino , Humanos , Funciones de Verosimilitud , Embarazo , Características de la Residencia , Adulto Joven
13.
J Biol Chem ; 289(19): 13232-42, 2014 May 09.
Artículo en Inglés | MEDLINE | ID: mdl-24648517

RESUMEN

As a facultative anaerobe, Vibrio cholerae can grow by anaerobic respiration. Production of cholera toxin (CT), a major virulence factor of V. cholerae, is highly promoted during anaerobic growth using trimethylamine N-oxide (TMAO) as an alternative electron acceptor. Here, we investigated the molecular mechanisms of TMAO-stimulated CT production and uncovered the crucial involvement of stringent response in this process. V. cholerae 7th pandemic strain N16961 produced a significantly elevated level of ppGpp, the bacterial stringent response alarmone, during anaerobic TMAO respiration. Bacterial viability was impaired, and DNA replication was also affected under the same growth condition, further suggesting that stringent response is induced. A ΔrelA ΔspoT ppGpp overproducer strain produced an enhanced level of CT, whereas anaerobic growth via TMAO respiration was severely inhibited. In contrast, a ppGpp-null strain (ΔrelA ΔspoT ΔrelV) grew substantially better, but produced no CT, suggesting that CT production and bacterial growth are inversely regulated in response to ppGpp accumulation. Bacterial capability to produce CT was completely lost when the dksA gene, which encodes a protein that works cooperatively with ppGpp, was deleted. In the ΔdksA mutant, stringent response growth inhibition was alleviated, further supporting the inverse regulation of CT production and anaerobic growth. In vivo virulence of ΔrelA ΔspoT ΔrelV or ΔdksA mutants was significantly attenuated. The ΔrelA ΔspoT mutant maintained virulence when infected with exogenous TMAO despite its defective growth. Together, our results reveal that stringent response is activated under TMAO-stimulated anaerobic growth, and it regulates CT production in a growth-dependent manner in V. cholerae.


Asunto(s)
Toxina del Cólera/biosíntesis , Metilaminas/metabolismo , Vibrio cholerae/metabolismo , Anaerobiosis/fisiología , Toxina del Cólera/genética , Eliminación de Gen , Vibrio cholerae/genética
14.
BMC Public Health ; 14: 1007, 2014 Sep 26.
Artículo en Inglés | MEDLINE | ID: mdl-25261299

RESUMEN

BACKGROUND: In this paper, an attempt has been made to explore the relationship between height and occurrence of the non-communicable diseases such as diabetes and hypertension. METHODS: For the purpose of analysis, Bangladesh Demographic and Health Survey (BDHS), 2011 data was used. Bivariate analysis along with a Chi-square test was performed to examine association between height and diseases. To measure the impact of stature on diabetes and hypertension, three different logistic regression models (Model I: considering only quartiles of height, Model II: covariates of model I along with demographic variables and Model III: covariates of model II along with clinical variable) were considered. RESULTS: Occurrence of diabetes and hypertension was found to be inversely related with the height of participants. This inverse association was statistically significant for all three models. After controlling the demographic and clinical variables simultaneously, the odds ratio for highest quartile compared to the lowest quartile was 0.82 with 95% confidence interval (0.69, 0.98) for diabetes; whereas it was 0.72 with 95% confidence interval (0.55, 0.95) for hypertension. CONCLUSIONS: Findings of this paper indicate that persons with shorter stature are substantially more likely to develop diabetes as well as hypertension. The occurrence of non-communicable diseases like diabetes and hypertension can be reduced by controlling genetic and non-genetic (early-life and childhood) factors that may influence the height.


Asunto(s)
Estatura , Diabetes Mellitus/epidemiología , Hipertensión/epidemiología , Adulto , Bangladesh/epidemiología , Pesos y Medidas Corporales , Femenino , Encuestas Epidemiológicas , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Oportunidad Relativa , Factores Socioeconómicos
15.
Artículo en Inglés | MEDLINE | ID: mdl-39147827

RESUMEN

This study investigates the prevalence and determinants of readiness for quality antenatal care (ANC) services in Bangladesh using data from the 2017 Bangladesh Health Facility Survey (BHFS). We assessed the association between selected factors and the readiness index using multinomial logistic regression. We identified a significant gap in the availability and quality of ANC services, only 4.26% of health facilities provide quality ANC services, with rural facilities showing lower readiness compared to urban facilities (RRR:0.13; 95% CI: 0.06-0.31; p < 0.001). Community clinics and private hospitals have a lower likelihood of medium or high readiness compared to public hospitals or clinics. Health facilities with specialized care are more likely to demonstrate readiness for quality ANC services. Policy recommendations include increased healthcare funding, implementation of ANC guidelines, strengthened monitoring and evaluation of health facilities, and heightened community awareness. These measures should improve ANC, overall health outcomes, and public health policies.

16.
J Biol Chem ; 287(47): 39742-52, 2012 Nov 16.
Artículo en Inglés | MEDLINE | ID: mdl-23019319

RESUMEN

Vibrio cholerae is a gram-negative bacterium that causes cholera. Although the pathogenesis caused by this deadly pathogen takes place in the intestine, commonly thought to be anaerobic, anaerobiosis-induced virulence regulations are not fully elucidated. Anerobic growth of the V. cholerae strain, N16961, was promoted when trimethylamine N-oxide (TMAO) was used as an alternative electron acceptor. Strikingly, cholera toxin (CT) production was markedly induced during anaerobic TMAO respiration. N16961 mutants unable to metabolize TMAO were incapable of producing CT, suggesting a mechanistic link between anaerobic TMAO respiration and CT production. TMAO reductase is transported to the periplasm via the twin arginine transport (TAT) system. A similar defect in both anaerobic TMAO respiration and CT production was also observed in a N16961 TAT mutant. In contrast, the abilities to grow on TMAO and to produce CT were not affected in a mutant of the general secretion pathway. This suggests that V. cholerae may utilize the TAT system to secrete CT during TMAO respiration. During anaerobic growth with TMAO, N16961 cells exhibit green fluorescence when stained with 2',7'-dichlorofluorescein diacetate, a specific dye for reactive oxygen species (ROS). Furthermore, CT production was decreased in the presence of an ROS scavenger suggesting a positive role of ROS in regulating CT production. When TMAO was co-administered to infant mice infected with N16961, the mice exhibited more severe pathogenic symptoms. Together, our results reveal a novel anaerobic growth condition that stimulates V. cholerae to produce its major virulence factor.


Asunto(s)
Sistemas de Secreción Bacterianos/fisiología , Toxina del Cólera/metabolismo , Cólera/enzimología , Periplasma/metabolismo , Vibrio cholerae/enzimología , Factores de Virulencia/metabolismo , Sustitución de Aminoácidos , Anaerobiosis/efectos de los fármacos , Anaerobiosis/genética , Animales , Sistemas de Secreción Bacterianos/efectos de los fármacos , Cólera/genética , Toxina del Cólera/genética , Metilaminas/farmacología , Ratones , Mutación Missense , Oxidantes/farmacología , Periplasma/genética , Vibrio cholerae/genética , Vibrio cholerae/patogenicidad , Factores de Virulencia/genética
17.
PLoS One ; 18(2): e0281369, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36749769

RESUMEN

INTRODUCTION: The World Health Organization recommended a set of five neonatal care practices that are most essential for good health of a newborn. As good essential newborn care (ENC) practice reduces the risk of neonatal morbidity and mortality, this paper focuses how women's multidimensional empowerment index is associated with this practice through the skilled antenatal care. To the best of knowledge, no such study has been conducted yet. The composite index of women's multidimensional empowerments was constructed using family decision, intimate partner violence, social status, healthcare access and economic status of women; and skilled antenatal care was defined if a pregnant woman received eight or more checkups during pregnancy from skilled health professionals. MATERIALS AND METHODS: Data extracted from Bangladesh Demographic and Health Survey, 2017-18 have been utilized in the study. A total of 2441 mothers have been considered who delivered their last live birth at home within three years preceding the survey. A mediation analysis was performed considering the structural equation modeling to find out the adjusted association of women's empowerment on both skilled antenatal care and good ENC practice, but the unadjusted associations were also checked using a chi-square test. To test the indirect as well as total effect of women's empowerment through skilled antenatal care on good ENC practice, bias-corrected standard errors were estimated using a bootstrapping sampling. RESULTS: Good ENC practice was considerably low in Bangladesh with 7.6% of newborns receiving the practice. Both adjusted and unadjusted analyses showed the significant association of women's empowerment with both skilled antenatal care and good ENC practice. The study revealed that the indirect effect of high empowerment through skilled antenatal care was greater than its direct effect on good ENC practice. CONCLUSION: This study explored that the prevalence of good ENC practice can be accelerated through women's empowerment, where skilled antenatal care plays an important mediating role in improving good ENC practice among highly empowered mothers. The study suggests that a woman should follow the latest guidelines recommended by WHO for antenatal care follow-up. Policymakers can modify some of the maternal and child health care interventions based on the research findings.


Asunto(s)
Madres , Atención Prenatal , Niño , Humanos , Femenino , Recién Nacido , Embarazo , Bangladesh , Estudios de Seguimiento , Factores Socioeconómicos , Embarazo Múltiple
18.
BMJ Open ; 13(11): e075370, 2023 11 14.
Artículo en Inglés | MEDLINE | ID: mdl-37963706

RESUMEN

OBJECTIVE: The purpose of the study was to ascertain how the standard of living is associated with the likelihood of developing diabetes and hypertension directly as well as indirectly through overweight and obesity. STUDY DESIGN: The study used 2017-2018 Bangladesh Demographic and Health Survey data. It examined the household living standard (LSD) as the main factor, and body mass index (BMI) as a mediator. Outcomes included diabetes status, hypertension status and their co-occurrence. Structural equation modelling with logistic regression and bootstrapping were used for mediation analysis and computing bias-corrected SEs. SETTING: The research was carried out in Bangladesh and included both male and female adults. PARTICIPANTS: The study encompassed a total of 11 961 adults (5124 males and 6837 females) aged 18 years or older. RESULTS: Among the participants, 10.3% had diabetes, 28.6% had hypertension and 4.9% had both conditions. The prevalence of diabetes, hypertension or both conditions was 18.5%, 33.5% and 9.7%, respectively, among those with a high LSD. Regression analysis demonstrated that individuals with high LSD had significantly elevated risks of these conditions compared with those with low LSD: 133% higher odds for diabetes (OR 2.22; 95% CI 1.97 to 2.76), 25% higher odds for hypertension (OR 1.25; 95% CI 1.10 to 1.42) and 148% higher odds for both conditions (OR 2.48; 95% CI 1.96 to 3.14). Moreover, the indirect effects of high LSD through obesity surpassed its direct effects for developing diabetes, hypertension or both conditions. CONCLUSION: This study emphasises that with the enhancement of LSD, individuals often experience weight gain, resulting in elevated BMI levels. This cascade effect significantly amplifies the risks of diabetes, hypertension or both conditions. To counteract this concerning trajectory, policy interventions and targeted awareness campaigns are imperative. These efforts must prioritise the promotion of heightened physical activity and the mitigation of the overweight/obesity surge associated with rising LSD.


Asunto(s)
Diabetes Mellitus , Hipertensión , Adulto , Masculino , Humanos , Femenino , Sobrepeso/epidemiología , Sobrepeso/complicaciones , Estudios Transversales , Bangladesh/epidemiología , Factores de Riesgo , Diabetes Mellitus/epidemiología , Hipertensión/epidemiología , Hipertensión/complicaciones , Obesidad/epidemiología , Obesidad/complicaciones , Índice de Masa Corporal , Composición Familiar , Prevalencia
19.
Health Sci Rep ; 5(5): e791, 2022 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-35989946

RESUMEN

Background and Aims: Essential newborn care (ENC) practices play an important role in reducing the risk of infant mortality and morbidity. Therefore, more studies are needed on ENC practices. Skilled maternal healthcare can be a good strategy to increase the practice. Learn about the independent and joint effects of skilled maternal healthcare during pregnancy and childbirth on newborn care practices. Methods: The study used a cross-sectional data obtained from Bangladesh Multiple Indicator Cluster Survey, 2019. To investigate the association between maternal healthcare utilization and good ENC practice (cord care, delayed bathing, and immediate breast-feeding), χ 2 test and t-test in bivariate and binary logistic regression analysis, respectively have been performed after taking into account complex survey design. Results: Only about 24% (95% confidence interval [CI]: 22.95%-25.89%) women given birth at home in rural Bangladesh followed good newborn care practice. The results obtained from adjusted regression analysis showed that a woman was 24%, 49%, and 75% more likely of having good ENC practice if she received four or more skilled checkups during antenatal period only (adjusted odds ratios [AOR]: 1.24, 95% CI: 0.97, 1.60), received assistance from SBA during delivery only (AOR: 1.49, 95% CI 1.12, 1.97) and received skilled healthcare in both pregnancy and delivery (AOR: 1.75, 95% CI 1.13, 2.71), respectively compared to a woman who did not get an opportunity to receive skilled healthcare during pregnancy and delivery. Among the selected confounders, maternal age at birth, birth order, education of household heads and religion showed a significant association with good ENC practice. Conclusion: The study revealed that proper maternal healthcare during pregnancy and childbirth from skilled health personnel can improve the rate of ENC practices. For this, more training programs should be started, especially at the community level, and health promotion activities are needed to create awareness about efficient maternal healthcare practices.

20.
PLoS One ; 17(1): e0263003, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35081128

RESUMEN

BACKGROUND: Women's empowerment, education, and economic status are jointly introduced as women's 3E. A number of studies found the significant association of these three variables with maternal health outcomes, but no studies, to the best of knowledge, have been found to justify the joint influence of women's 3E on the birth interval. As several studies have revealed that the short birth interval increases the risk of adverse maternal, perinatal, and infant outcomes and it is also responsible for increasing the country's population size, more research is needed on the birth interval. Therefore, the present study aimed to investigate the influence of women's 3E on the short birth interval after controlling the other selected covariates. METHODS: Data from the Bangladesh Demographic and Health Survey (BDHS), 2017-18 have been used to serve the purpose of the study. To measure the birth interval, at least two live births for non-pregnant mothers and at least one live birth for currently pregnant mothers born in the 5 years before the survey were included in the study. The Chi-Square test was applied to know the unadjusted association of the selected covariates including women's 3E with the short birth interval. In order to find out the adjusted association of women's 3E with the short birth interval, sequential binary logistic regression models have been used. RESULTS: The study found that about 23% of births in Bangladesh were born in a short birth interval. The likelihood of subsequent births of women decreases with an increase in the score of women's 3E before or after controlling the characteristics of women, child, and households. The results of the final model show that mothers with the coverage of 50% - 75%, 75% - 100%, and full coverage (100%) in 3E have a 23%, 41%, and 42% lower odds of having short birth interval compared to mothers with coverage of below 50% in 3E, respectively. CONCLUSION AND RECOMMENDATION: Bangladesh still lags behind in meeting the minimum requirements for inter-birth intervals set by the World Health Organization. The study has shown that the 3E in women can contribute in prolonging the duration of subsequent births in Bangladesh. Policy-making interventions are needed to raise awareness among uneducated, under-empowered and economically poor reproductive women through family planning and fertility control programs so that the country can achieve the desired fertility rate.


Asunto(s)
Intervalo entre Nacimientos , Tasa de Natalidad , Servicios de Planificación Familiar , Población Rural , Adolescente , Adulto , Bangladesh , Femenino , Humanos , Persona de Mediana Edad , Embarazo , Factores Socioeconómicos
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