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1.
BMC Pregnancy Childbirth ; 21(1): 404, 2021 May 27.
Artigo em Inglês | MEDLINE | ID: mdl-34044791

RESUMO

BACKGROUND: Partographs should be used universally to monitor the mother and fetus's conditions during delivery. However, its application in different parts of the world, including Ethiopia, is inconsistent. Moreover, its magnitude has not been determined in study area. As a result, the aim of this study was to investigate the utilization of partograph and associated factors among obstetric caregivers in public health institutions of Southwest Ethiopian. METHODS: An institutional-based cross-sectional study was conducted in Southwest Ethiopia from March 1st to June 30th, 2018. A simple random sampling technique was used to select study participants. A self-administered questionnaire was used to gather data on background characteristics, knowledge of partograph, and partograph utilization. The collected data were entered into an EPI Info and analysed using SPSS Version 22. We used bivariate and multivariate logistic regression analysis. Frequencies, tables, and graphs were used to present the final results. To determine statistical significance, a P-value of less than 0.05 was used. RESULT: The response rate of this study was 393(92.2 %). The magnitude of utilization of partograph was 43 % with (95 % CI: 38.4, 48.1). According to the multivariate analysis being nurse or health officer [AOR = 0.37(0.21, 0.66)], degree level educational qualification [AOR = 0.32 (0.17, 0.60)], being trainined on partograph [Adjusted OR = 7.83 (95 % CI: (4.54, 13.50)], good knowledge about partograph [AOR = 5.84 (95 % CI: (3.27, 10.44)] and working at health center [AOR = 1.99 (95 % CI: (1.12, 3.52)] were found as determinants of partograph utilization. CONCLUSIONS: The magnitude of partograph utilization among obstetric caregivers was found to be low in this study. Partograph utilization was determined by the type of profession, qualification level, knowledge of partograph, in-service training, and type of institution. To ensure its regular, obstetric caregivers must receive training and gain knowledge about it.


Assuntos
Trabalho de Parto , Monitorização Fisiológica/estatística & dados numéricos , Complicações do Trabalho de Parto/prevenção & controle , Padrões de Prática Médica/estatística & dados numéricos , Cuidado Pré-Natal , Adulto , Centros de Assistência à Gravidez e ao Parto , Estudos Transversais , Etiópia , Feminino , Humanos , Masculino , Obstetrícia , Gravidez , Inquéritos e Questionários
2.
Midwifery ; 126: 103815, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37717345

RESUMO

BACKGROUND: During pregnancy, intimate partner violence (IPV) is a health problem associated with severe adverse birth outcomes. The Ethiopian Demographic Health Survey showed that more than one-third of married women faced IPV. Therefore, this study aimed to investigate the effects of IPV during pregnancy on adverse birth outcomes. METHODS: A prospective cohort study was conducted from September 1st, 2021 to April 30th, 2022. Using a systematic random sampling technique, participants were enrolled from 20 to 24 weeks of gestation at antenatal visits at the selected public health institutions. The validated and modified standards of the World Health Organization Domestic Violence Questionnaire were used to screen for IPV. Bivariate and multivariate logistic regression models were used in this study. The relative risk was also calculated to predict the occurrence of adverse birth outcomes. RESULTS: Overall, 701 pregnant women were followed from 20 to 24 weeks of gestation until delivery in a 1:2 ratio (244 exposed to 457 non-exposed). Preterm birth increased by 1.02 times (RR=1.02, 95 CI; 0.979-1.047), low birth weight with RR= 2.023, 95% CI; 1.201-3.407 and stillbirth (RR= 1.124, 95%CI; 0.43-3.055). Among the exposed groups, 167(23.8%), 83 (11.8%), and 51 (7.3%) had emotional, physical, and sexual violence, respectively. The odds of developing adverse birth outcomes from IPV exposure were [AOR=1.63,95% CI: [1.23, 3.75], emotional violence [AOR= 1.70:95% CI: [1.24, 4.24], and physical violence [AOR= 3.99:95% CI: [1.51, 10.52] times higher than those of their counterparts. No significant association was observed between sexual violence and adverse birth outcomes. Being unsupported by the husband and having previous adverse birth outcomes increased IPV by nearly four-fold [AOR=3.80:95% CI; 1.19, 12.09] and [AOR= 3.70:95% CI:1.49, 9.17], respectively. The odds of mothers with a 2nd visit MUAC measurement of < 23 cm were [AOR=2.81:95% CI; 1.20, 6.61]. CONCLUSION: The incidence of adverse birth outcomes was significantly higher in the physically IPV-exposed group than in the non-exposed group. Therefore, pregnant women should be screened for IPV during their antenatal period. Thus, IPV-exposed pregnant women should be counseled and closely followed up.


Assuntos
Violência por Parceiro Íntimo , Complicações na Gravidez , Nascimento Prematuro , Gravidez , Feminino , Recém-Nascido , Humanos , Estudos Prospectivos , Nascimento Prematuro/epidemiologia , Nascimento Prematuro/etiologia , Modelos Logísticos , Instalações de Saúde , Fatores de Risco
3.
Heliyon ; 8(5): e09380, 2022 May.
Artigo em Inglês | MEDLINE | ID: mdl-35592665

RESUMO

Background: Undernutrition in pregnant women, expressed as low mid-upper arm circumference, is responsible for maternal mortality and morbidity, adverse birth outcomes, subsequent childhood malnutrition, and mortality. As a result, the purpose of this study was to determine the prevalence of maternal undernutrition and associated factors during pregnancy in public hospitals in the Bench-Sheko and Kaffa zones of southwest Ethiopia. Methods: A facility-based cross-sectional study design was employed among 566 women who received antenatal care from March-May 2021 at the public hospitals of the Bench-Sheko and Kaffa zones, Southwest Ethiopia. A systematic random sampling technique was used to select the research unit. Undernutrition was measured by mid-upper arm circumference. The data were entered into Epi- Data version 3.1 and then exported to Statistical Package for Social Science (SPSS) version 21 software for analysis. Multivariate logistic regression models were constructed using variables with a P-value <0.25 in bivariate logistic regression analysis. Finally, in multivariate logistic regression analysis, the variable with a (P-value < 0.05) is considered statistically significant. Results: A total of 566 pregnant women participated in our study with a response rate of 98.3%. The overall prevalence of undernutrition among pregnant women was 42.4% (95% CI: 38.3, 46.5). In multivariate logistic regression, the age of mothers between 16-24 years old (AOR = 3.9, 95% CI: 1.60, 9.70), household food insecurity (AOR = 1.81, 95% CI: 1.04, 3.15), and poor dietary knowledge (AOR = 3.25, 95% CI: 1.94, 5.47) were the factors significantly associated with undernutrition among pregnant women. Conclusion: According to this study finding, the prevalence of undernutrition was very much high in the study area, which was significantly associated with the age groups of 16-24 years older women, poor dietary knowledge, and household food insecurity. Therefore, the strategies and programs targeted towards reducing and preventing undernutrition among pregnant mothers should be made at all levels to improve their nutritional status, and also health information, nutrition counseling, and food assistant should be provided.

4.
Int J Womens Health ; 14: 705-718, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35645582

RESUMO

Introduction: Birth preparedness and complication readiness (BPCR) strategy is a key to reducing delays of appropriate care for maternal and child health. Women's autonomy in the decision of receiving care during pregnancy is essential for improvements in maternal health. However, there is a scarcity of information on the effect of intimate partner violence (IPV) on BPCR in Southwest Ethiopia. Methods: A comparative cross-sectional study was conducted among 688 women (340: women who had experienced IPV and 348: women who had not experienced IPV). A multi-stage sampling technique was used to select study participants. Bivariate and multivariable logistic regression models were done. A P-value <0.05 at a 95% confidence interval was used to declare a statistical significance. Results: BPCR among IPV women was 30.59%, lower compared with 46.84% women who did not experience IPV. Higher education [AOR=4.00 (1.20, 13.28)], partner did not drink alcohol [AOR=2.53 (1.34, 4.78)], no childhood violence [AOR=2.70 (1.37, 5.32)], partner's pregnancy desire [AOR=3.61 (1.41, 9.21)], and good knowledge of BPCR [AOR=8.59 (3.56, 20.70)] were more likely to practice BPCR among women who experienced IPV, whereas among women who did not experience IPV, no previous pregnancy complications [AOR=2.22 (1.08, 4.55)], good knowledge of BPCR [AOR=4.90 (2.59, 9.26)] and pregnancy danger signs [AOR=5.23 (1.47, 18.56)] were more likely practice BPCR. Conclusion: BPCR among IPV women was lower compared with women who did not experience IPV. Likewise, women's knowledge of BPCR, obstetric danger signs during pregnancy, labor, and postpartum were lower among women who faced IPV. Therefore, minimizing women's IPV help to improve BPCR.

5.
Lifetime Data Anal ; 17(2): 195-214, 2011 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-20878357

RESUMO

Over the last decades, the evaluation of potential surrogate endpoints in clinical trials has steadily been growing in importance, not only thanks to the availability of ever more potential markers and surrogate endpoints, also because more methodological development has become available. While early work has been devoted, to a large extent, to Gaussian, binary, and longitudinal endpoints, the case of time-to-event endpoints is in need of careful scrutiny as well, owing to the strong presence of such endpoints in oncology and beyond. While work had been done in the past, it was often cumbersome to use such tools in practice, because of the need for fitting copula or frailty models that were further embedded in a hierarchical or two-stage modeling approach. In this paper, we present a methodologically elegant and easy-to-use approach based on information theory. We resolve essential issues, including the quantification of "surrogacy" based on such an approach. Our results are put to the test in a simulation study and are applied to data from clinical trials in oncology. The methodology has been implemented in R.


Assuntos
Biomarcadores/análise , Determinação de Ponto Final/métodos , Teoria da Informação , Modelos Estatísticos , Neoplasias do Colo/mortalidade , Simulação por Computador , Determinação de Ponto Final/normas , Humanos , Recidiva Local de Neoplasia
6.
BMC Nutr ; 7(1): 66, 2021 Oct 28.
Artigo em Inglês | MEDLINE | ID: mdl-34706770

RESUMO

BACKGROUND: Inadequate dietary diversity intake during pregnancy increases risks of intrauterine growth restriction, abortion, low birth weight, preterm birth, prenatal and infant mortality,and morbidity and has long-lasting health impacts. Dietary diversity during pregnancy promotes the health status of the mother and her fetus. This study aimed to assess the magnitude of minimum dietary diversity and associated factors among pregnant women attending antenatal care. METHODS: A facility-based cross-sectional study was conducted among 274 pregnant women who attended antenatal care at Wacha primary hospital from January to February 2021. A systematic sampling method was used to select the study participants. The data were collected through face-to-face interviews using a structured and semi-structured questionnaire. Bivariate logistic regression was done to identify factors associated with maternal dietary diversity. Finally, multivariate logistic regression was done, and variables that showed P values of < 0.05 were considered statistically significant. RESULT: The magnitude of minimum dietary diversity was 51% (95% CI: 44.5, 56.7). The mean (±SD) minimum dietary diversity score was 4.5 (± 1.268) with a minimum of 1 anda maximum of 8 food groups consumed out of ten food groups. Age fewer than 25 years (AOR 4.649; 95% CI; 1.404, 15.396), and the age group between 25 to 34 years (AOR 3.624; 95% CI: 1.315, 10.269), husband age group of 26 to 34 years (AOR 2.238; 95% CI; 1.028,4.873), and 35 to 44 years (AOR 3.555; 95% CI; 1.228,10.292) and nutrition awareness of women (AOR 2.182; 95% CI; 1.243, 3.829) were significantly associated with minimum dietary diversity. CONCLUSION: The consumption of minimum dietary diversity of the pregnant mothers was found to be low. Women aged less than 25 and age between 25 to 34 years, husband's age between 26 to 34 and 35 to 44 years, and nutrition awareness were the factors significantly associated with minimum dietary diversity. Therefore, providing nutrition education and counseling service warranted to promote maternal dietary diversity.

7.
Nutr Metab Insights ; 14: 11786388211057796, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34819735

RESUMO

BACKGROUND: A poor dietary intake of key macronutrients and micronutrients adversely affects pregnancy outcomes and neonatal health. The occurrence of dietary inadequacy during pregnancy is higher compared to any other stage of the life cycle. Therefore, this study aimed to assess dietary practice and associated factors among pregnant women. METHODS: A facility-based cross-sectional study design was conducted among 378 pregnant women from March to May 2021 at the public health institution of Mizan-Aman town, southwest Ethiopia. A systematic random sampling technique was used to reach the study participants. The short food-frequency questionnaires and nutrition-behaviors checklist measurement were used to assess the dietary practice. Nine questions were applied to assess the dietary attitudes of the respondents. After the summation of the score, the respondent was categorized as favorable attitude if their score was > the median and unfavorable attitude if their score was ⩽ to the median of the score. The data were entered into Epi Data 3.1 and exported to Statistical Package for Social Science (SPSS) version 21 software for analysis. Variables of P-value <.25 during bivariate logistic regression analysis were considered for multivariate analysis. Finally variables with an adjusted odds ratio of P-value <.05 along with a 95% Confidence interval (CI) were declared statistically significant. RESULTS: The overall magnitude of good dietary practice among pregnant women was 25.1% (95% CI: 20.9, 29.71%). In multivariate logistic regression analysis, the variables having television/radio (AOR = 4.2, 95% CI: 1.8, 10.2), household food security (AOR = 3.1, 95% CI: 1.0, 9.9), good dietary knowledge(AOR = 4.1, 95% CI: 1.98, 8.6), favorable dietary attitude (AOR = 4.34, 95% CI: 1.2, 8.7), monthly income of 1000 to 2000 Ethiopian birr (AOR = 3.7, 95% CI: 1.3,11.2) and >2000 Ethiopian birr (AOR = 7.0;95% CI: 3.3,15.4) were significantly associated with good dietary practice. CONCLUSION: The dietary practice among pregnant women was very low. The factors like having television/radio, good dietary knowledge, household food security, favorable dietary attitude, and monthly income of 1000 to 200 and greater than 2000 Ethiopian birr were significantly associated with the good dietary practice of pregnant women.

8.
J Biopharm Stat ; 19(1): 133-49, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19127472

RESUMO

The drug development process involves identifying a compound and assessing its merit through rigorous pre-clinical and clinical trials. The pre-clinical stage is designed to assess the chemical properties of the new drug, as well as to determine the steps for synthesis and purification. In this stage of drug development, circumstances might dictate the use of alternative endpoints than the originally anticipated clinically relevant endpoint. In this regard, identification and evaluation of surrogate endpoints is of paramount importance. The validation methods make it possible to quantify degrees of association between the clinically relevant endpoint, also termed the true endpoint, and the alternative, surrogate endpoint. In this paper, we adapt the surrogate marker evaluation methodology of Alonso et al. (2003); (2006), developed for the case of two longitudinal outcomes, to the situation where either a longitudinal surrogate and cross sectional true endpoint is recorded, or vice versa. The work is motivated by a preclinical experiment conducted to assess association between corticosterone (CORT), heart rate, and blood pressure in rats, the data from which are then subjected to analysis. It was found that there is a weak relationship between CORT and behavior, and between CORT on the one hand and heart rate and blood pressure on the other hand, but a reasonably high degree of association was registered between heart rate and behavior.


Assuntos
Comportamento Animal/fisiologia , Pressão Sanguínea/fisiologia , Corticosterona/sangue , Frequência Cardíaca/fisiologia , Algoritmos , Animais , Comportamento Animal/efeitos dos fármacos , Biomarcadores/sangue , Pressão Sanguínea/efeitos dos fármacos , Avaliação Pré-Clínica de Medicamentos/métodos , Avaliação Pré-Clínica de Medicamentos/estatística & dados numéricos , Frequência Cardíaca/efeitos dos fármacos , Internet , Modelos Lineares , Modelos Estatísticos , Psicotrópicos/farmacologia , Psicotrópicos/uso terapêutico , Ratos , Software , Estresse Psicológico/sangue , Estresse Psicológico/fisiopatologia , Estresse Psicológico/prevenção & controle
9.
J Biopharm Stat ; 18(2): 326-41, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18327724

RESUMO

One of the paradigms for surrogate marker evaluation in clinical trials is based on employing data from several clinical trials: the meta-analytic approach. It was originally developed for continuous outcomes by means of the linear mixed model, but other situations are of interest. One such situation is when both outcomes are binary. Although joint models have been proposed for this setting, they are cumbersome in the sense of computationally complex and of producing validation measures that are, unlike in the Gaussian case, not of an R(2) type (Burzykowski et al., 2005). A way to put these problems to rest is by employing information theory, already applied in the continuous case (Alonso and Molenberghs, 2007). In this paper, the information-theoretic approach is applied to the case of binary surrogate and true endpoints. Its use is illustrated using a case study in acute migraine and its performance, relative to existing methods, assessed by means of a simulation study. Because the usefulness of a method critically depends, among others, on the availability of software, a SAS implementation accompanies the methodological work.


Assuntos
Biomarcadores Farmacológicos/análise , Determinação de Ponto Final/estatística & dados numéricos , Modelos Estatísticos , Ensaios Clínicos Controlados Aleatórios como Assunto/estatística & dados numéricos , Software , Humanos
10.
Int J Data Min Bioinform ; 8(1): 24-41, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23865163

RESUMO

In recent years, a lot of attention is placed on the selection and evaluation of biomarkers in microarray experiments. Two sets of biomarkers are of importance, namely therapeutic and prognostic. The therapeutic biomarkers would give us information on the response of the genes to treatment in relation to the response of the clinical outcome to the same treatments, whereas the prognostic biomarkers enable us to predict the clinical outcome irrespective of treatments and other confounding factors. In this paper, we use different methods that allow for both linear and non-linear associations to select prognostic markers for depression, the response.


Assuntos
Biomarcadores/metabolismo , Genoma Humano , Algoritmos , Depressão/diagnóstico , Depressão/metabolismo , Perfilação da Expressão Gênica , Humanos , Prognóstico
11.
Stat Methods Med Res ; 19(3): 205-36, 2010 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-19608602

RESUMO

For a number of reasons, surrogate endpoints are considered instead of the so-called true endpoint in clinical studies, especially when such endpoints can be measured earlier, and/or with less burden for patient and experimenter. Surrogate endpoints may occur more frequently than their standard counterparts. For these reasons, it is not surprising that the use of surrogate endpoints in clinical practice is increasing. Building on the seminal work of Prentice(1) and Freedman et al.,(2) Buyse et al. (3) framed the evaluation exercise within a meta-analytic setting, in an effort to overcome difficulties that necessarily surround evaluation efforts based on a single trial. In this article, we review the meta-analytic approach for continuous outcomes, discuss extensions to non-normal and longitudinal settings, as well as proposals to unify the somewhat disparate collection of validation measures currently on the market. Implications for design and for predicting the effect of treatment in a new trial, based on the surrogate, are discussed. A case study in schizophrenia is analysed.


Assuntos
Biomarcadores/análise , Ensaios Clínicos como Assunto/estatística & dados numéricos , Saúde Mental , Descoberta de Drogas , Determinação de Ponto Final , Humanos , Teoria da Informação , Funções Verossimilhança , Metanálise como Assunto , Modelos Estatísticos , Avaliação de Resultados em Cuidados de Saúde , Esquizofrenia/tratamento farmacológico
12.
Clin Trials ; 4(6): 587-97, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-18042568

RESUMO

BACKGROUND: Surrogate endpoints potentially reduce the duration and/or increase the amount of information available in a study, thereby diminishing patient burden and cost. They may also increase the effectiveness and reliability of research, through beneficial impact on noncompliance and missingness. PURPOSE: In this article, we review the meta-analytic approach of Buyse et al. (2000) and its extension to mixed continuous and binary endpoints by Molenberghs Geys, and Buyse (2001). METHODS: An information-theoretic alternative, based on Alonso and Molenberghs (2007a) is proposed. The method is evaluated using simulations and application to data from an ophthalmologic trial, with lines of vision lost at 6 months as candidate surrogate endpoints for lines of vision lost at 12 months. The method is implemented as an R function. RESULTS: The information-theoretic approach is based on solid theory, easy to apply, and enjoys elegant properties. While the information-theoretic approach appears to be somewhat biased downwards, this is due to fact that it operates at explicitly observed outcomes, without the need for unobserved, latent scales. This is a desirable property. LIMITATIONS: While easy-to-use and implement, the theoretical foundation of the information-theory approach is more mathematical. It produces some bias for small to moderate trial/center sizes, and hence is recommended primarily for sufficiently large trials. CONCLUSIONS: Since the meta-analytic framework can be computationally extremely expensive, the information-theoretic approach of Alonso and Molenberghs (2007a) is a viable alternative. For the ophthalmologic case study, the conclusion is that the lines of vision lost at sixth month do have some, but not overwhelming promise as a surrogate endpoint.


Assuntos
Biomarcadores , Ensaios Clínicos Controlados Aleatórios como Assunto/estatística & dados numéricos , Bélgica , Biomarcadores/análise , Humanos , Modelos Estatísticos
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