Effect of under-nutrition during pregnancy on low birth weight in Tigray regional state, Ethiopia; a prospective cohort study

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Study Justification:
– Under-nutrition during pregnancy has been shown to affect birth outcomes and neonatal outcomes.
– Low birth weight is a significant issue worldwide, particularly in poor countries.
– There is a lack of longitudinal-based evidence on the effect of under-nutrition during pregnancy on birth weight in Tigray regional state, Ethiopia.
Study Highlights:
– The study was conducted in Tigray regional state, Ethiopia, from October 2019 to June 2020.
– A total of 540 pregnant women attending antenatal care in hospitals were included in the study.
– Pregnant women with mid upper arm circumference (MUAC) < 23 cm were considered exposed to under-nutrition, while those with MUAC ≥ 23 cm were considered unexposed.
– Data on socio-demographic, diet, hygiene, and anthropometry measurements were collected using pretested and structured questionnaires.
– The overall incidence of low birth weight was 14%, with a higher incidence among exposed women (18.4%) compared to unexposed women (9.8%).
– Maternal illiteracy, low monthly family income, lack of latrine utilization, and low diet diversity score were identified as risk factors for low birth weight.

Study Recommendations:
– Strengthen nutritional assessment and interventions during pregnancy, with a special focus on illiterate and low-income pregnant women.
– Promote latrine utilization and consumption of diversified diets to improve birth outcomes.
– Emphasize the importance of education and income support for pregnant women to reduce the risk of low birth weight.

Key Role Players:
– Health professionals: Obstetricians, midwives, nutritionists, and public health experts.
– Government agencies: Ministry of Health, Ministry of Education, and Ministry of Finance.
– Non-governmental organizations (NGOs): Organizations working in maternal and child health, nutrition, and education.
– Community leaders: Local leaders who can advocate for and support the implementation of interventions.

Cost Items for Planning Recommendations:
– Nutritional assessment tools and supplies.
– Training programs for health professionals on nutrition during pregnancy.
– Education programs for pregnant women on proper nutrition and hygiene practices.
– Income support programs for low-income pregnant women.
– Construction and maintenance of latrines in communities.
– Monitoring and evaluation of interventions.
– Communication and awareness campaigns.
– Research and data collection on the effectiveness of interventions.

Please note that the cost items provided are general categories and the actual cost will vary depending on the specific context and implementation strategies.

Background: Under-nutrition during pregnancy affects birth outcomes and neonatal outcomes. Worldwide, 20.5 million children were low birth weight, mainly in poor countries. However, there is no longitudinal-based evidence on the effect of under-nutrition during pregnancy on birth weight in Tigray regional state. Therefore, this study aimed at investigating the effect of under-nutrition during pregnancy on low birth weight in Tigray regional state. Methods: We conducted a prospective cohort study among consecutively selected 540 pregnant women attending antenatal care in hospitals from October 2019 to June 2020. Pregnant women with mid upper arm circumference (MUAC) < 23 cm were exposed and those with MUAC≥23 cm were unexposed. Data on socio-demographic, diet, hygiene and anthropometry measurements were collected using pretested and structured questionnaires. SPSS version 25 was used for analysis. A log-binomial model was used to estimate the adjusted risk ratio and its 95%CI of the risk factors for low birth weight. Multi-collinearity was checked using the variance inflation factor (VIF) at a cut-off point of 8 and there was no multi-collinearity. Result: The overall incidence of low birth weight was 14% (95%CI: 11.1, 17.4%). The incidence of low birth weight was 18.4 and 9.8% among the exposed and unexposed women, respectively. The difference in low birth weight incidence between the exposed and unexposed groups was statistically significant (p-value = 0.006). The risk factors of low birth weight were maternal illiteracy (ARR: 1.8, 95%CI: 1.01, 3.3), low monthly family income < 50 US Dollar (ARR: 1.6, 95%CI: 1.07, 2.2), lack of latrine utilization (ARR: 0.47, 95%CI: 0.28, 0.78), and diet diversity score < 5 (ARR: 1.9, 95%CI: 1.05, 2.61). Conclusion: Low birth weight was significantly higher among the exposed pregnant women. Maternal illiteracy, low monthly income, lack of latrine utilization, and low DDS were risk factors of low birth weight. It is then important to strengthen nutritional assessment and interventions during pregnancy, with a special attention for illiterate, and low monthly income pregnant women. Again, there has to be a promotion of latrine utilization and consumption of diversified diets.

The study was conducted in Tigray regional state, Ethiopia. It is located at 780 km from the capital of Ethiopia, Addis Ababa. According to the 2018 Tigray regional health bureau report, there are 7 zones, 52 woredas/districts, 780 health posts, 227 health centers, and 18 hospitals. The major agricultural products found in Tigray regional state are cereals (Taff, barley, maize, and wheat), grains (bean, soya bean, and pea), vegetables, fruits, honey, and roots, animal products like meat, poultry, and milk, and milk products. We applied a prospective cohort study design from October 2019 to June 2020. The source population was all pregnant women attending antenatal care (ANC) in hospitals of Tigray regional state whereas the sample population was all pregnant women attending ANC in the randomly selected hospitals of Tigray regional state. The inclusion criteria were first ANC visit with gestational age not more than 16 weeks, willingness to attend routine ANC visits and permanent residence, and more than six months residency in Tigray regional state. Pregnant women with severe illness, overweight or obesity (BMI ≥ 25 kg/m2), and multiple pregnancies were excluded from the study. Pregnant women were recruited at first ANC contact (≤16 gestational weeks). Then, they were followed at ANC2 (20–26 gestational weeks), and ANC3 (30–40 gestational weeks). Finally, data on birth outcomes were taken during the institutional delivery. We had planned to exclude still births but such cases were not found during our data collection period. In this prospective cohort study, the ratio of exposed to unexposed pregnant women group was 1:1. We calculated the sample size using Epi-Info version 7.2.4 with the assumptions of 95% significance level (2-sided), 80% power. Besides, we took the incidence of low birth weight for exposed (11.8%) and unexposed (10.4%) pregnant women, and a relative risk of 1.9 from a study conducted in Tigray regional state in 2014 [13]. Then, we considered a 10% loss to follow up and our total sample size for this study was 540 (270 for exposed and 270 for the unexposed pregnant women). Firstly, we used a simple random sampling technique to select a total of six hospitals (Mekelle hospital Wukro hospital, Adigrat hospital, Adwa hospital, Aksum hospital, Suhul hospital) from a total of 18 hospitals in Tigray regional state. Secondly, we took a total number of study participants from each hospital based on their proportion to population size (PPS) i.e. proportional to their average client size attended per month by referring to the registration books of each antenatal care unit. Lastly, we recruited participants at the antenatal care unit using a consecutive sampling technique until the required sample size was attained. The recruited pregnant women were followed until they gave births. The dependent variable was the incidence of low birth weight and the independent variables include; socio-demographic and economic factors (age, educational status, marital status, parity, monthly income, residence, and religion), diseases (anemia, syphilis, hepatitis B virus, and HIV), dietary-related factors (diet diversity scores, food insecurity, drinking of tea/coffee), hygiene and sanitation-related factors (latrine, hand washing, and access to safe water), and anthropometry measurements (maternal height and weight, mid-upper-arm circumference (MUAC), gestational weight gain, and newborn weight). Gestational age at first contact was determined by the last normal menstruation period (LNMP), fundal height measurement, and or ultrasound. Low birth weight is weight < 2.5 kg at birth [7]. MUAC was used to assess the nutritional status of pregnant women. Those with a MUAC value less than 23 cm were considered as undernourished (exposed) and those with MUAC≥23 cm were normal nourished (unexposed) [14, 15]. Diet diversity scores (DDS) of the pregnant women were calculated using the 24-h dietary recall method. DDS is a proxy indicator for the quality of consumed diet, which in turn reflects the consumption of micronutrients. DDS out of 10 points was computed by combining the values of all the groups. The DDS was categorized as low (< 5) and recommended (≥5) [16]. Household food insecurity scores were classified into one of the four categories: food secured, mildly food insecure, moderate food insecure, and severely food insecure [17]. Data were collected by face-to-face interview using a pre-tested and structured questionnaire developed from EDHS and other literature [5, 12, 13, 16, 18]. Initially, the questionnaire was prepared in English and contextualized/adapted in a culturally relevant and comprehensive form. Then, it was translated into Tigrigna (local language) and translated back to English by language experts to check consistency. The questions were simple, clear and unambiguous. Nutrition and health experts have participated in developing and commenting the questionnaire. Some wording and sequences of the questions were modified after pre-test the questionnaire. The questionnaire had baseline questions concerning socio-demographic and economic, diseases, diet, hygiene, and sanitation-related factors and anthropometry measurements. The questionnaire had follow-up questions on MUAC, gestational weight gain, diet diversity score (DDS), and iron folate supplementation. Finally, the questionnaire had questions about birth outcomes like the sex of the newborn, live/dead, and birth weight. Anemia was identified using the WHO hemoglobin concentration cutoff point, less than 11 g/dl [19]. There were counseling and testing services to diagnose HIV, syphilis and hepatitis B virus in all hospitals. MUAC was measured by non-stretchable measuring tape. A tape was fixed at the mid-point between the elbow and the shoulder (acromion and olecranon). The tape measure was placed around the non-dominant arm; usually the left arm. The weight of the mother was measured in kilograms with a weighing scale (Seca designed by Germany) and rounded off to the nearest 0.1 kg. The height of the mother was measured with a stadiometer (Seca-2000, mechanical height meter), without shoes, and rounded off to the nearest 0.1 cm. The weight of the baby at birth was measured in kilograms on digital baby scales (Seca 354 Hamburg, Germany). The infants were weighed wearing no clothing. To estimate DDS, the pregnant women were asked to recall all the food items consumed in the previous 24 h preceding the data collection date. Then, the reported food items were classified based on the ten food groups (Cereals, Pulses, Nuts and Seeds, Dairy, Meat, Eggs, Dark green leafy vegetables, other vitamin A-rich fruits and vegetables, other vegetables, and other fruits). Consuming a food item with a minimum of 15 g (one teaspoon) from any of the groups was assigned a score of “1” and a score of “0” was assigned if no or less than 15 g food was consumed. Household food insecurity was assessed by a tool adopted from food and nutrition technical assistance (FANTA). The tool contains 18 questions; the first 9 questions were answered by yes or no based on the occurrence of the condition in the past four weeks. If the answer was yes for the occurrence question, a question for frequency of occurrence was asked to determine whether the condition occurred rarely (once/twice), sometimes (three to ten times), or often (more than ten times) [17]. Standard procedures were used in anthropometry measurements. All anthropometric measurements were taken three times and the average was calculated to ensure reliability. Data collectors and supervisors were BSc midwives. Two days’ training was given for data collectors and supervisors. All instruments were calibrated regularly using standard measurements. Data collectors were under close supervision and the collected data were reviewed and checked for completeness, clarity and accuracy on a daily basis prior to data entry. We used a statistical package for social sciences (SPSS) version 25 to analyze the collected data. We cleaned the data by sorting and tabulating simple frequency tables. Low birth weight was dichotomized into 1 = Yes and 0 = No. Then, we computed descriptive statistics for the study variables. Categorical variables were reported using frequencies and percentages. We checked the normality for the distribution of continuous variables using the Shapiro-Wilk test. We applied crosstabs to estimate the cumulative incidence of low birth weight. Chi-square test was used to assess the significant differences in the cumulative incidence of low birth weight. The difference was considered statistically significant at P-value < 0.05. We used a log-binomial model to estimate the adjusted risk ratio and its 95% confidence interval (CI) of the risk factors for low birth weight.

Based on the provided information, here are some potential innovations that could improve access to maternal health:

1. Mobile Health (mHealth) Applications: Develop and implement mobile applications that provide pregnant women with access to information and resources related to nutrition, hygiene, and prenatal care. These apps can also send reminders for antenatal care visits and provide personalized recommendations based on the woman’s specific needs.

2. Telemedicine Services: Establish telemedicine services that allow pregnant women in remote areas to consult with healthcare professionals through video calls or phone calls. This can help address the lack of healthcare facilities and specialists in certain regions, providing women with timely advice and guidance during their pregnancy.

3. Community Health Workers: Train and deploy community health workers who can provide education and support to pregnant women in their local communities. These workers can conduct regular check-ups, provide basic prenatal care, and refer women to healthcare facilities when necessary.

4. Nutritional Interventions: Implement targeted interventions to improve nutrition during pregnancy, such as providing fortified food supplements or promoting the consumption of locally available nutrient-rich foods. This can help address the issue of under-nutrition and reduce the risk of low birth weight.

5. Sanitation and Hygiene Promotion: Launch campaigns to promote proper sanitation practices, including the construction and use of latrines, handwashing with soap, and access to safe drinking water. These initiatives can help prevent infections and improve overall maternal and neonatal health outcomes.

6. Maternal Health Education Programs: Develop comprehensive educational programs that focus on maternal health, covering topics such as prenatal care, breastfeeding, newborn care, and family planning. These programs can be delivered through community workshops, radio broadcasts, or digital platforms.

7. Transportation Support: Address transportation barriers by providing transportation services or subsidies for pregnant women to access healthcare facilities for antenatal care visits and delivery. This can help ensure that women have timely and safe access to the care they need.

8. Public-Private Partnerships: Foster collaborations between public and private sectors to improve access to maternal health services. This can involve leveraging private healthcare providers, pharmacies, and technology companies to expand service delivery and reach underserved populations.

It’s important to note that the implementation of these innovations should be context-specific and tailored to the needs and resources of the Tigray regional state in Ethiopia.
AI Innovations Description
Based on the study conducted in Tigray regional state, Ethiopia, the following recommendations can be developed into an innovation to improve access to maternal health:

1. Strengthen nutritional assessment and interventions during pregnancy: Implement programs that focus on providing adequate nutrition and dietary support to pregnant women. This can include promoting the consumption of diverse and nutrient-rich foods, as well as providing nutritional supplements when necessary.

2. Provide special attention to illiterate and low-income pregnant women: Develop targeted interventions and educational programs specifically designed for illiterate and low-income pregnant women. These programs should focus on improving their knowledge and understanding of maternal health, nutrition, and hygiene practices.

3. Promote latrine utilization and hygiene practices: Increase awareness and access to proper sanitation facilities, such as latrines, and promote good hygiene practices among pregnant women. This can help reduce the risk of infections and improve overall maternal and neonatal health outcomes.

4. Enhance access to antenatal care: Improve access to antenatal care services by increasing the number of health facilities, health posts, and trained healthcare providers in the region. This can help ensure that pregnant women receive regular check-ups, screenings, and necessary interventions to prevent and manage complications.

5. Collaborate with local communities and stakeholders: Engage local communities, community leaders, and other stakeholders in the development and implementation of maternal health programs. This can help ensure that interventions are culturally appropriate, accepted, and sustainable.

By implementing these recommendations, it is possible to develop innovative approaches that can improve access to maternal health and ultimately reduce the incidence of low birth weight in Tigray regional state, Ethiopia.
AI Innovations Methodology
Based on the provided study, here are some potential recommendations to improve access to maternal health:

1. Strengthen nutritional assessment and interventions during pregnancy: Implement programs that focus on improving the nutritional status of pregnant women, especially those who are undernourished. This can include providing nutritional supplements, promoting a balanced diet, and educating women on the importance of proper nutrition during pregnancy.

2. Provide targeted support for illiterate and low-income pregnant women: Recognize that maternal illiteracy and low monthly income are risk factors for low birth weight. Develop interventions that specifically target these vulnerable groups, such as providing educational materials in accessible formats and offering financial support for healthcare services.

3. Promote latrine utilization and hygiene practices: Lack of latrine utilization was identified as a risk factor for low birth weight. Implement programs that promote proper sanitation practices, including the construction and maintenance of latrines, as well as education on the importance of hygiene during pregnancy.

4. Increase awareness and access to diversified diets: Low diet diversity scores were associated with an increased risk of low birth weight. Develop initiatives that promote the consumption of a variety of nutrient-rich foods during pregnancy. This can include nutrition education, support for local food production, and improving access to affordable and diverse food options.

To simulate the impact of these recommendations on improving access to maternal health, a methodology could include the following steps:

1. Define the target population: Identify the specific population that will be the focus of the simulation, such as pregnant women in a particular region or healthcare facility.

2. Collect baseline data: Gather relevant data on the current state of maternal health access in the target population. This can include information on maternal nutrition, socioeconomic factors, healthcare utilization, and birth outcomes.

3. Develop a simulation model: Create a mathematical or computational model that represents the target population and simulates the impact of the recommendations. The model should incorporate relevant variables and their relationships, such as the effect of improved nutrition on birth weight and the influence of socioeconomic factors on healthcare access.

4. Input intervention scenarios: Define different scenarios that represent the implementation of the recommendations. This can include variations in the coverage and intensity of the interventions. Input the necessary data and parameters into the simulation model to represent each scenario.

5. Run the simulation: Execute the simulation model using the defined scenarios. The model will generate outputs that represent the predicted impact of the interventions on access to maternal health, such as changes in birth weight, healthcare utilization rates, and other relevant indicators.

6. Analyze and interpret the results: Examine the outputs of the simulation to assess the potential impact of the recommendations. Compare the different scenarios to identify the most effective interventions and their expected outcomes. Consider the limitations and uncertainties of the simulation results.

7. Refine and iterate: Use the insights gained from the simulation to refine the recommendations and the simulation model itself. Iterate the process by incorporating new data and adjusting the model parameters as needed.

By following this methodology, policymakers and healthcare providers can gain insights into the potential impact of different interventions on improving access to maternal health and make informed decisions on implementing the most effective strategies.

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