scholarly journals Sampling plan of the Brazilian National Survey on Child Nutrition (ENANI-2019): a population-based household survey

2021 ◽  
Vol 37 (8) ◽  
Author(s):  
Maurício Teixeira Leite de Vasconcellos ◽  
Pedro Luis do Nascimento Silva ◽  
Inês Rugani Ribeiro de Castro ◽  
Cristiano Siqueira Boccolini ◽  
Nadya Helena Alves-Santos ◽  
...  

The article describes methodological aspects in defining the study population, sampling plan, and sample weigthing and calibration of effective sample of the Brazilian National Survey on Child Nutrition (ENANI-2019). This population-based household survey assessed breastfeeding and dietary intake, anthropometric assessment of nutritional status, and micronutrient deficiencies by blood biomarkers in children under five years of age. The data were obtained with a probability sample, with stratification by the five geographic regions in the country and clustering by census enumeration areas (CEAs). The sample was calculated at 15,000 households distributed in 1,500 CEAs, with 300 allocated in each of Brazil’s five major geographic regions and 10 eligible households per CEA, sampled using inverse sampling. The required population parameters were thus estimated to reach the study’s objectives. The basic sampling design weights were calculated as the inverse probabilities of the households’ inclusion in the study. Imputation was used to compensate for non-response to items in the target variables, except for data on the blood biomarkers. Finally, calibration used population totals of children in 60 post-strata, defined by cross-classification of the following variables: major geographic region, sex, and age. The final sample included 14,558 children residing in 12,524 households, distributed in 1,382 CEAs in the 26 states of Brazil and the Federal District. The data from the ENANI-2019 survey will support strategies for the promotion and implementation of public policies for children under five years of age.

2021 ◽  
Vol 37 (8) ◽  
Author(s):  
Elisa Maria de Aquino Lacerda ◽  
Cristiano Siqueira Boccolini ◽  
Nadya Helena Alves-Santos ◽  
Inês Rugani Ribeiro de Castro ◽  
Luiz Antonio dos Anjos ◽  
...  

Abstract: This manuscript aims to describe the methodological, operational, and quality control aspects of the assessment of dietary intake in children under five years of age participating in the Brazilian National Survey on Child Nutrition (ENANI-2019), a household survey in a probability sample of Brazilian households. Two instruments were developed to assess child feeding practices - a structured, current status-type questionnaire and a 24-hour dietary recall (24HR), both installed in a mobile data collection device used by previously trained interviewers. A Photographic Manual for Quantification of Children’s Dietary Intake was specifically developed for and used in the survey as a support aid to identify and quantify foods reported in the 24HR. During the fieldwork, continuous quality control of the records was performed. Data errors or incomplete data in the system were corrected, and the fieldwork team was systematically contacted and informed on their performance, with reiterated orientation on data collection. All children in the sample were evaluated with the two instruments, but data were obtained from the structured questionnaire on all children in the sample (n = 14,558) and 24HR on 14,541 children. ENANI-2019 developed innovative methods and materials based on the Brazilian and international literature to address knowledge gaps on under-five children’s dietary intake. Unprecedented results will be produced, which will allow updating food and nutrition guidelines for children under five years of age in Brazil.


2021 ◽  
Vol 37 (8) ◽  
Author(s):  
Luiz Antonio dos Anjos ◽  
Haroldo da Silva Ferreira ◽  
Nadya Helena Alves-Santos ◽  
Maiara Brusco de Freitas ◽  
Cristiano Siqueira Boccolini ◽  
...  

Abstract: The article presents methodological aspects of anthropometric assessment of nutritional status in children under five years of age and their biological mothers. It discusses the strategies used for training and data collection in the Brazilian National Survey on Child Nutrition (ENANI-2019). ENANI-2019 is a population-based household survey conducted in 123 municipalities in Brazil’s 26 states and the Federal District. The anthropometric measurements were body mass and length/stature. The equipment was purchased according to its measurement capacity and precision, portability, and cost-benefit ratio after an extensive market search. The study used internationally established procedures described in manuals, videos, and support material developed for the study by a group of experts. The interviewers were trained to perform the anthropometric measurements and were assessed according to technical measurement error, which was considered adequate (0.30cm) for the children’s length/stature measurements. Measurement errors were identified, and the interviewers were retrained when necessary. Of the 14,558 children in the sample, body mass and length/stature measurements were taken in duplicate in 13,835 and 13,693 children, respectively. The standardized methodological aspects will be helpful in future population studies and were essential for obtaining greater reliability in the data for generating current evidence on the anthropometric assessment of the nutritional status of Brazilian children under five years of age, allowing new perspectives for public policy development.


2021 ◽  
Vol 37 (8) ◽  
Author(s):  
Nadya Helena Alves-Santos ◽  
Inês Rugani Ribeiro de Castro ◽  
Luiz Antonio dos Anjos ◽  
Elisa Maria de Aquino Lacerda ◽  
Paula Normando ◽  
...  

Abstract: This article aims to present general methodological aspects of the Brazilian National Survey on Child Nutrition (ENANI-2019), from the conception of the study design to details of the data collection. This is a household-based population survey with a sample calculated at 15,000 households to identify children under five years of age, conducted in 123 municipalities in Brazil’s 26 states and the Federal District. ENANI-2019 includes data on breastfeeding and dietary intake; anthropometric nutritional status of all children and their biological mothers; and nutritional status concerning the following micronutrients: iron (hemoglobin and ferritin), zinc, selenium, and vitamins A, B1, B6, B12, D, E, and folic acid of children from 6 to 59 months of age. A total of 193,212 households were visited, of which 19,951 were eligible, and 12,524 were included in the study. A total of 14,558 children were studied, of whom 13,990 (96.1%) and 13,921 (95.6%) had their body mass and length/stature measured, respectively, and 14,541 (99.9%) underwent 24-hour dietary recalls (24HR). Of the 12,598 children eligible for blood sample collection, 8,739 (69.3%) had at least one laboratory parameter measured. Data were collected from February 2019 to March 2020, when the survey was interrupted due to the COVID-19 pandemic. The evidence produced by the ENANI-2019 survey can back the formulation, follow-up, and/or reorientation of food and nutrition policies such as the promotion of breastfeeding and healthy eating and the prevention and control of different forms of malnutrition.


2016 ◽  
Vol 21 (7) ◽  
pp. 2257-2266 ◽  
Author(s):  
Saulo Augusto Silva Mantovani ◽  
Alanderson Alves Ramalho ◽  
Thasciany Moraes Pereira ◽  
Fernando Luiz Cunha Castelo Branco ◽  
Humberto Oliart-Guzmán ◽  
...  

Abstract Despite the process of nutritional transition in Brazil, in some places, such as the Amazon region, stunting is still an important public health problem. We identified the prevalence and factors associated with stunting in children under five years old residing in the urban area of Assis Brasil. A survey was conducted in which a questionnaire on socioeconomic, maternal and children’s conditions was applied, and height or length was measured. The children with height for age index below -2 Z-scores were considered stunted, according to the criteria by the World Health Organization. Four hundred and twenty-eight children were evaluated. Of these, 62 were stunted. Factors associated with stunting, according to adjusted models, were: the presence of open sewer, the wealth index for households, the receipt of governmental financial aid and the mother’s height, age and education. Therefore, it was observed that family and the mother’s characteristics as well as environmental and socioeconomic factors were closely related to the occurrence of stunting in the population studied, and such nutritional disturbance is still a health problem in the Brazilian Amazon.


2017 ◽  
Vol 112 (5) ◽  
pp. 348-353 ◽  
Author(s):  
Graciela Russomando ◽  
Blanca Cousiño ◽  
Zunilda Sanchez ◽  
Laura X Franco ◽  
Eva M Nara ◽  
...  

Author(s):  
M.Hussein Ahmed ◽  
Dawria Adam ◽  
Abdelbasit. M. Burma Salim ◽  
Belal Abdallah

We  conduct  this  study  to  study risk factors of   protein energy malnutrition  Among Children Under Five years .This  study was conducted in Nyala  Locality in south  Darfur  State in  Sudan. Cross-sectional descriptive study to measure the Prevalence of protein energy malnutrition. This study designed to cover (n=402 child).


2020 ◽  
pp. 1-11
Author(s):  
Seo Ah Hong

Abstract Objective: The current study aimed to investigate double burden of malnutrition within households at the national and subnational levels and to identify its association with sociodemographic factors in Myanmar. Design: All the variables were extracted from children’s file of the Myanmar Demographic and Health Survey 2015–2016. Children under five were identified as stunted based on a height-for-age < −2 sd below the WHO reference median. Maternal overweight/obesity was defined as a BMI ≥ 23 kg/m2. A stunted child with an overweight/obese mother (SCOM) was classified as a double-burden household. Setting: A national household survey in Myanmar. Participants: Children under five and their mothers (n 3954 pairs). Results: Mean ages of children and mothers were 29 (se 0·14) months and 30·9 (se 0·32) years, respectively. National prevalence of childhood stunting and maternal overweight/obesity was 28·0 % and 39·4 %, respectively, and the prevalence of SCOM was 9·1 %. Significant regional differences were found in SCOM, ranging from 3·6 % in Naypyitaw to 12 % in Kachin and Mon and 14·6 % in Kayah. In the multinomial logistic regression analysis, relative to neither a stunted child nor an overweight/obese mother, child’s age, maternal age, maternal experience of a teen birth, short mothers, mothers with primary education and in middle or rich wealth tertiles, and some regions (Kachin, Kayah, Shan, Sagaing, Taninthayi, Ayeyarwaddy, Mon and Yangon) were associated with greater odds of SCOM. Conclusions: The current study showed a relatively high national prevalence of SCOM and significant regional variations. Overarching policies and programmes with culturally sensitive strategies need to be formulated and implemented.


2020 ◽  
Author(s):  
Joel Dofinissery Bognini ◽  
Joel Dofinissery Bogninni ◽  
Sekou Samadoulougou ◽  
Francis Smart ◽  
David Tiga Kangoye ◽  
...  

Abstract Background In 2010, the Government of Sierra Leone has implemented the Free Health Care Initiative (FHCI) in the country with the objective to reduce under five mortality. The biggest share of this mortality in the country is attributable to infectious diseases. Care-seeking for children under five is a key point to reduce mortality due to infectious diseases as it permits early diagnosis and prompt and correct treatment. The objective of this study was therefore to assess the trend in the prevalence of care-seeking as well as to identify determinants of utilization of healthcare services by under-five (U5) caregivers under the policy initiative. Methods The analysis of care-seeking behavior was done using data from three population-based studies in Sierra Leone (2008-before FHCI and 2013, and 2016-After FHCI). Care-seeking behavior was assessed through care-seeking of caregivers of children U5 with a history of fever in the 2 weeks prior to the survey. We compared the percentages of care-seeking and performed modified Poisson modeling to evaluate the determinants of care-seeking during the period of FHCI (2013–2016). Results In 2008, a total of 1,208 feverish children were identified, as compared with 2,823 children in 2013, and 1,633 in 2016. Fewer children had seeking care for fever in 2008 (51% [95% CI (46.4–55.5)]) than in 2013 (71.5% [95% CI (68.4–74.5)]) and in 2016 (70.3% [95% CI (66.6–73.8)] (p < 0.001)). Care-seeking was low when the household head was a man, when the head of the household was 15–24 years old, when the child was living in a poorest household, in north or west region and when the child was more than one year old. Conclusions The increase of care-seeking in children under five with fever coincided with the initiation of the FHCI in Sierra Leone. Effective interventions to improve the health facilities’ visitation of the children under five should target the identified factors.


1998 ◽  
Vol 37 (3) ◽  
pp. 205-230 ◽  
Author(s):  
G. M. Arif ◽  
Sabiha Ibrahim

The present study used the 1995-96 Pakistan Integrated Household Survey data to determine the socio-economic, demographic, and environmental covariates of both prevalence and duration of diarrhoea among children under five in Pakistan. Seven logit models were estimated to determine factors influencing the probability of occurrence of diarrhoea. Seven Proportional Hazards Models were used to examine factors determining the duration of diarrhoea. Results revealed that around 20 percent of children under five suffered from diarrhoea in the 30 days prior to the survey. Child’s age was negatively associated with diarrhoea morbidity. Children who had measles immunisation were less likely than children without this immunisation to have diarrhoea. The study also revealed that in controlling the occurrence of diarrhoea among children, sanitation facilities seemed to be more important than the supply of drinking-water. With respect to the duration of diarrhoea, the hazard models showed that younger children, particularly under the age of two, were relatively at a greater risk to suffer from longer diarrhoea episode. The use of Nimkol (ORT) showed a significant and positive effect on recovering quickly from the diarrhoea morbidity. The findings of the study suggest that mothers should be given health education so that they are familiar with the simply prepared treatment, Nimkol, and have knowledge about personal hygiene, and specially of preparing supplementary foods for children.


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