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Dietary Practices and Their Determinants Among Pregnant Women in Gedeo Zone, Southern Ethiopia: A Community-Based Cross-Sectional Study

Authors Yalewdeg M, Birhane M, Adissu Y

Received 22 June 2020

Accepted for publication 28 October 2020

Published 18 December 2020 Volume 2020:12 Pages 267—275

DOI https://doi.org/10.2147/NDS.S267453

Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Dr Chandrika Piyathilake

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Mahlet Yalewdeg,1 Mahlet Birhane,2 Yohannes Adissu3

1Department of Reproductive Health, Gedeo Zone Health Office, College of Health Science and Medicine, Dilla University, Dilla, Ethiopia; 2Department of Human Nutrition, College of Health Science and Medicine, Dilla University, Dilla, Ethiopia; 3Department of Public Health, College of Health Science and Medicine, Dilla University, Dilla, Ethiopia

Correspondence: Mahlet Birhane
Department of Nutrition, College of Medicine and Health Science, Dilla University, Dilla, Ethiopia
Tel +251 912294306
Email [email protected]

Background: This study is therefore designed to assess dietary practices and its determinant among pregnant women in Gedeo zone, southern Ethiopia, 2018.
Methods: A community-based cross-sectional study was employed at Gedeo zone, southern Ethiopia from May to June 2018 among 351 study participants. The sample size was calculated using a single population proportion formula. Pregnant women were identified by health extension workers. A lottery method was used to select each pregnant woman. Sample was drawn proportionally based on the number of pregnant women in each selected kebele (small administrative unit). The dietary practice of pregnant women was determined by using ten items. Knowledge of pregnant women about dietary consumption was assessed by using 8 questions. Attitude towards dietary practice was assessed by asking 9 attitude questions. Data were entered into EpiData 3.1 and cleaned and analyzed by using the statistical package for social science (SPSS) version 24. Binary logistic regression analysis was employed to identify factors associated with dietary practices.
Results: In this study, 113 (32.2%) of study participants had good dietary practices. The mean (standard deviation) age of study participants was 29± 5.9years. Over one-third (76.9%) of mothers were housewives. Regarding knowledge and attitude, 45.6% and 42.8% of respondents had good dietary knowledge and a positive attitude, respectively. Educational status (adjusted odds ratio 2.72; 95% CI; 1.46– 5.07), monthly income (AOR; 3.01, 95% CI; 1.19– 7.63), antenatal follow-up (AOR; 0.46, 95% CI; 0.23– 0.94), knowledge (AOR; 2.32, 95% CI; 1.23– 4.37) and attitude (AOR; 1.9, 95%C; 1.03– 3.52) were determinants of dietary practices.
Conclusion: Less than one-third of pregnant women (32.2%) presented good dietary practices. Educational status of the mother, monthly income, ANC visit, knowledge, and attitude were the factors that affect the dietary practices of pregnant women. Since dietary practices of pregnant women are relatively low in the current study, community-based nutrition education specifically on intake of both micro- and macronutrients during pregnancy should be considered by the federal and regional governments of Ethiopia.

Keywords: dietary practices, pregnant women, Dilla Zuria, southern Ethiopia

Introduction

A balanced diet means taking adequate types of foods and beverages in terms of both variety and quantity to provide adequate nutrition and calorie for building body cells, tissues, and organs.1 Nutrition during pregnancy should schedule to provide adequate energy and nutrients for the mother as well as for the inborn infants.2

During pregnancy, all mothers need more and diversified foods and micronutrient supplements. The energy requirement rises in the second and third trimesters. Especially, in the third trimester of pregnancy, women require more protein, carbohydrate and fats to meet the increased energy requirements.3 During this crucial period, a wise selection of fats plays an important role for the fetal development and infant growth. Increase intakes of healthy fatty acid (polyunsaturated fats) rather than to increase the intake of total fats: an adequate intake of docosahexaenoic acid (DHA, of then-3 series) is essential for the growth and development of brain and retina.4 Inadequate intakes of macro- and micro-nutrients during pregnancy have several consequences and complications like maternal complications and death, fetal and newborn death, birth defects, and decreased physical and mental potential of the child in fetal growth restriction and adverse prenatal outcomes.5

Inadequate intake of nutritious food during pregnancy can affect a woman’s life, the newborn infant, the family, and the community at large.6 Women who developed iron deficiency anemia before or during pregnancy were at increased risk of delivering preterm, hypoxia, oxidative stress, infection, low birth weight, and also increase the risk of maternal and infant mortality.7

Nutrition during pregnancy is a significant public health concern because pregnancy is a critical period during which good maternal nutrition is an important factor that affects the health of both the mother and the child. In 2013, 289,000 women died during and following pregnancy and childbirth. Almost all of these deaths occurred in low-resource settings, and almost all maternal deaths (99%) occur in developing countries.8 A serious problem of maternal undernutrition is reported in most countries in sub-Saharan Africa, South-central and Southeastern Asia, and in Yemen, where more than 20% of women are malnourished.9

In Ethiopia, nutritional problems are among the leading causes of diseases and death. The major problems are macronutrient malnutrition and micronutrient deficiencies such as vitamin A, iron, and iodine. Chronic malnutrition (BMI<18.5kg/m2) among women is a serious problem in Ethiopia which accounts 26% of malnutrition as is stunting (13% < 150 cm in height).10

The dietary practice is defined as a participant’s preference in food consumption or behaviors of dietary habits and can be classified as good dietary practices and poor dietary practices.11 Dietary habits, food taboos, and misconceptions are the main factors that affect dietary intake during pregnancy in rural Ethiopia.12 In Ethiopia, about 37% of urban and 34% of rural mothers reported having micronutrient supplementation for at least three months during their pregnancy.13

Even though researches focused on maternal health is common, research related to dietary practice and other nutrition is limited at large in Ethiopia in general and in Dilla zuria woreda in particular. In addition, identifying factors that affect the dietary practices of pregnant women is important to initiate timely and appropriate interventions. So, this study was intended to determine dietary practices and its determinant factors among pregnant women at Dilla zuria woreda, Gedeo zone, SNNPR Ethiopia.

Materials and Methods

This community-based cross-sectional study was employed at Gedeo zone Dilla zuria woreda, SNNPR, Ethiopia from Mayto June, 2018. Dilla zuria woreda is 4 km from Dilla town (center of Gedeo zone), 81 km from Hawassa (center of SNNPR), and 370 km from Addis Ababa (the center of Ethiopia). Based on the woreda administration office 2017, the total population of the woreda is 127,022 (Male = 49.8% and Female = 50.2%). The average total pregnant women in the woreda is 4404. The climate is woinadega. The woreda has a total area of 370 hectares (3.7 km2). It has 5 health centers, 27 health posts, and 5 drug stores. All pregnant women residing at Dilla zuria woreda were the source population while pregnant mothers who resided in the selected kebele of Dilla zuria woreda were the study population. All pregnant women who permanently resided in the study area were included for this study while pregnant women who were severely sick and or not stable to respond to question were excluded.

The sample size (n) required for this survey was determined by Epi Info version 7 by using a single population proportion formula (n = (Z α ⁄2)2p q/d2) by assuming an expected prevalence of 33.9%.14 Margin of error 5% and 95% CI. Since the average total pregnant mother in Dilla zuria woreda 4404 is below 10,000, reduction formula was employed as follows nf =ni/1+ni/N nf =344/1+ (344/4404) =319. By adding 10% for none response, the final calculated sample size becomes 351.

For the second-specific objective, the sample size was calculated by using an open Epi Info version7 based on minimum detectable OR, 5% level of significance, and power 80%, 95% CI (Table 1).

Table 1 Sample Size Determination for the Associated Factor of the Dietary Practice of Pregnant Mother

The largest sample size is the one which is calculated for the first specific objective which is 319 and adding a 10% non-response rate it becomes 351.

Sampling Procedure

According to statistical rule of thumb, from the total 17 kebele of Dilla zuria woreda 30% (five kebeles) were selected by using the lottery method. The sampling frame was prepared based on the family folder from the kebele’s Health extension workers (HEWs). Then, the sample size was allocated proportionally to each kebele based on the number of pregnant women in each kebele. Then, a simple random sampling technique was implemented to select the households with eligible study sample until the sample size is attended. The selected study subject who refused to participate in the study was considered as non-respondent.

Tools and Procedures

To collect the data, structured and semi-structured interviews administer questionnaires were used. The data were collected by using six trained diploma teachers. The questionnaires have six contents. Namely, demographic characteristics, financial factors, obstetric factors, diet-related knowledge, attitude, and practices. Knowledge of pregnant women about dietary consumption was assessed by using 8 questions that were used to assess knowledge of pregnant women regarding dietary recommendation during pregnancy. A knowledge score was calculated for each participant based on the number of questions that were correctly answered in the knowledge assessing questions section. Each correct response was scored 1 and incorrect response scored 0. The mean value was used to categorize respondents as having good knowledge or poor knowledge. A pregnant mother was considered to have good knowledge if she correctly answered above the mean score of knowledge assessing questions and poor knowledge if she answered equal and below the mean score of knowledge assessing questions. The questionnaire was taken from previously validated questionnaire.15 Attitude towards dietary practice was assessed by asking 9 attitude questions (Table S1). When the pregnant women agreed for questions regarding attitude, she has a score of 3 points, for neutral a score of 2 points and if she answers disagree, scored 1 point following the Likert scale. Then, the aggregate attitude score was determined for each pregnant woman by summing up the scores across the nine attitudes related questions. A pregnant woman was considered to have a positive attitude if she had scored more than the mean score out of the nine items. If she had scored below or equal to the mean point, she was considered as having a negative attitude.16,17 The dietary practice of pregnant mothers was determined by using ten items (Table S2). For each dietary practice question, one point was given if the respondents answer correctly and zero-point if she answered incorrectly. The aggregate dietary practice score was determined by summing up the scores for each respondent’s answers for all ten dietary practice items. Pregnant women were considered to have poor dietary practice if they scores below the mean dietary practice assessing questions and good dietary practices if they scores above and equal to the mean.18

Quality Control and Analysis

Data collection tools for this study were first prepared in English, translated to the local language, and re-translated back to English to prove its consistency. All data collectors and supervisors were informed about the tools and the participants. Before the actual data collection period, a pre-test on 5% of the sample was conducted and modification was done accordingly. Data were monitored and checked for completeness on daily basis during data collection. The supervisors have checked the data at each data collection day. Data were entered into EpiData version 3.1 and analysis was done by using the Statistical Package for Social Sciences (SPSS) version 20. Descriptive statistics were displayed by using frequency, percentage, mean and standard deviation. Binary logistic regression analysis was done to show the association between dependent and independent predictors. Variables with P-value of <0.25 in the univariate analysis was candidate for multivariate analysis. Finally, the degree of association was declared by using AOR with 95% CI. Multicollinearity was ruled out through co-linearity diagnostic check. According to the known cutoff point, there was no Multicollinearity between independent variables. Model fitness to the dependent variable with the predictors was checked by hosmer and lemeshow test for goodness of fit.

Results

Socio-Demographic and Economic Factors of Respondents

In the current study, 351 pregnant women were included with a response rate of 100%. The mean (standard deviation) age of study participants was 29±5.9years. Most (96.6%) of study participants were married. About, 270 (76.9%) of mothers were housewives; whereas only 8.3% were government employees. Below half (48.7%) of the husbands were a farmer whereas 20.5% where government employees. Most of the respondents 260 (74.1%) had family size ≥ 5. Regarding educational status, about half (50.4%) of study participants had no formal education while 11.4% had secondary and above level. Above half (53.8%) of husbands had primary education. Among the respondents, 192 (54.7%) of mothers had a monthly income of below 28.5dollars whereas 46 (13.1%) had a monthly income of above 57dollars. From 351 study participants, a hundred fifty (42.7%) had ≥5 live births, while two-third (67%) of them had <2 years of an interval between the last two pregnancies. The majority (73.1%) of the study participants had an ANC visit during their pregnancy (Table 2).

Table 2 Socio-Demographic Characteristics of Pregnant Mothers in Dilla Zuria Woreda, Southern Ethiopia, 2018

Dietary Knowledge of Respondents

In this study, 160 (45.6%) of respondents had good knowledge of the dietary practice. Over half 191 (54.4%) of the respondents did not know about a balanced diet. Regarding the source of carbohydrate, 260 (74.1%) of the respondent did not respond to the proper source. The mean (±SD) knowledge score of respondents was (4.1±2.9).

Attitude Towards the Dietary Practice

Below half, (42.8%) of respondents have scored a positive attitude while 201 (57.2%) scored a negative attitude for dietary practice during pregnancy. The mean (±SD) attitude score of the study participants was (20.0±2.93) out of 27 possible points. About 151 (43%) of the study participants had disagreed for eating an additional meal. Below half (45.9%) of the respondents had agreed to prepare meals with iodized salt (Table 3).

Table 3 Attitude of Pregnant Mothers Towards Dietary Practice in Dilla Zuria Woreda, Southern Ethiopia, 2018 (n=351)

The Dietary Practice of Study Participants

Out of 351 respondents, 113 (32.2%) had good dietary practices, 238 (67.8%) of them ate once or twice daily and 90 (25.6%) ate three or four times daily. The majority, 257 (73.2%) consume green leafy vegetables, 56 (16.5%) consume animal source food on a daily bases. Among the 351 study participants, 122 (34.8%) of them practiced infrequent meals between the main meal patterns, 173 (49.3%) respondents had followed a specific dietary regimen. Out of the study participants, 274 (78.1%) had iron/folic acid supplements during pregnancy. Nearly one-fourth of 86 (24.4%) of the respondents had food avoidance practice. For this, 15 (4.3%) reason out culture, 37 (10.5%) wrongly perceived for some specific food in which it may result in big baby, and 35 (10%) reason out as it may cause difficulty of delivery (Table 4).

Table 4 Dietary Practice of Pregnant Mother in Dilla Zuria Woreda, Southern Ethiopia, 2018 (n=351)

Factors Associated with Dietary Practices of Pregnant Women

In the final logistic regression model, a variable like, maternal education, monthly income, ANC visit, knowledge, and attitude have shown significant association with the outcome variable. Respondents with formal education were 2.7times more odds of good dietary practice than those without formal education (AOR=2.7, 95% CI 1.45–5.07). Study participants with a monthly income of more than 57dollars and between 28.5–57dollars were 3 and 2 times higher chance to have good dietary practice than those with a monthly income of below 28.5dollars (AOR=3.01, 95% CI, 1.19–7.62) and (AOR= 2, 95% CI, 1.04–3.86) respectively.

In this study, mothers who had no ANC follow-up were 54% less chance of good dietary practice than those mothers with ANC follow-up (AOR= 0.46, 95% CI, 0.23–0.94). Knowledge was another determinant factor for dietary practice. The odds of good dietary practice for those with good knowledge were 2.32 times higher than those with poor knowledge (AOR=2.31, 95% CI, 1.2–4.3). Similarly, the attitude was significantly associated with the outcome variable. Study participants with a positive attitude had 1.9 times higher odds of good dietary practice than participants with a negative attitude (AOR=1.9, 95% CI, 1.03–3.52) (Table 5).

Table 5 Binary and Multiple Logistic Regression Analysis for Factors Associated with the Dietary Practice Among Pregnant Mothers in Dilla Zuria Woreda, Gedeo Zone, South Ethiopia, 2018 (n=351)

Discussion

Pregnant women should plan to have adequate quality and quantity of food to provide the extra energy and micronutrient requirement for herself as well as for the fetal growth.2 Inadequate intake of both macro- and micronutrients during pregnancy has negative maternal and fetal consequences like maternal death, fetal and newborn death, birth defects, and decreased physical and mental potential of the child in fetal growth restriction and adverse prenatal outcomes.5 Inadequate intake of foods rich in polyunsaturated fatty acid (PUFAs) has negative consequences on brain and visual development. The transport of DHA to the fetus during pregnancy is highly dependent on maternal dietary intake.4 Inadequate intake of these foods during pregnancy has also a negative consequence on milk production. Researches have shown that, a low intake of foods that are natural sources of n-3 fatty acids (vegetable oils, fish, and seafood during pregnancy leads to a significant reduction of DHA levels in erythrocytes and also in breast milk.19 So, this study was aimed to assess the dietary practice and its determinant among pregnant mothers in Gedeo zone, southern Ethiopia. This study showed that only 32.2% of pregnant mothers have good dietary practices. The finding of the current study is in line with a study conducted in Oromia region, Ethiopia which showed that 33.9% of study participants have reported good dietary practice.14

But, this finding was slightly lower than a study done in Gondar Town North West, Ethiopia, Bahir Dar city and Dessie town which found 40.1%,20 39.3%21 and 43.2%22 of good dietary practice among pregnant women, respectively. The possible justification for the difference between those study findings is due to the differences in demographic characteristics of the study participants. In our study, participants have resided in rural parts of the community. Urban communities have possibilities to get better access to nutrition information through different mass media. On the contrary, the prevalence of good dietary practice in the current study is higher than a study done in west Gojjam zone northern Ethiopia which revealed that, only 19.9% of pregnant women had good dietary practices.23 This gap in the prevalence of dietary practice might be due to the difference in a geographical location, agro-economic practices, cultural and religion differences of a community and seasonal variation in food production and consumption. On the other hand, agricultural food production varies across different geographical locations of Ethiopia. For example, the staple foods of southern parts of Ethiopia are mostly root and tuber crops, fruits and vegetables while northern parts of Ethiopia produce and depend on cereal crops. Ethiopia is also a habitat of diverse religion followers.

Even though the health sectors of Ethiopia developed different health and nutrition programs especially for those vulnerable population groups, dietary consumption during pregnancy does not show progress and still, it is a possible cause for maternal and child related complications. For example, in our study, pregnant mothers had skipped usual diets, maintaining the expected frequency of feeding during pregnancy is also sub-optimal. Over half (65.2%) of the study participants skipped snacks and 67.8% had sub-optimal meal frequency. This figure was in line with findings from the Oromia region in which 59.9% and 66.1% of study participants skipped snacks and had sub-optimal meal frequency, respectively.14

Regarding educational status, study participants with formal education had 2.7times more odds of practicing good dietary consumption during pregnancy than those who were not formal education. This is similar with findings from southwestern Bangladesh that reported secondary complete level of education had, 3.8 times more odds of having diversified diet than secondary incomplete24 and in Gondar town which revealed that diploma and more holder pregnant mother had 2.6times more chance of having adequate dietary consumption.20 The possible explanation for this is mothers with better education have more chances to acquire nutrition and other health-related information from different sources like leaflets, magazines, and other media.

This study also revealed monthly income as a significant predictor of good dietary practice. Comparing to pregnant women who earn less than 28.5dollars, mothers with a monthly income of above 57dollars and b/n 28.5–57dollars had three and two times increase the chance to have good dietary practice, respectively. The possible explanation for this is that self-reliance mothers can be afforded for different food items and can feed the whole family as well as for her. A similar finding was reported from a study conducted in northwestern Ethiopia Gonder town which reported that respondents who earn b/n 28.5–57 dollars/month 2 times more odds of having good dietary practice than those <28.5dollars monthly income20 and Bahirdar city which revealed that monthly family income>57dollars and b/n 28.5–57dollars were 3.17 and 2.84 times more odds of practicing good diet than those whose monthly income of earning below 28.5dollars.21

Similarly, knowledge regarding diet during pregnancy has shown a significant association with the participant’s dietary practice. Knowledgeable women had a 2.32times higher chance of good dietary practice during pregnancy than not knowledgeable. This figure is similar to findings from researches which was conducted in somewhere in our country. According to this research, pregnant mothers who have knowledge were 3.8times increased chance of good dietary practice.21 It is also similar with findings from Bangladesh which shows mothers with medium and high level of knowledge have 18times and 30 times higher consumption of Iron-Folic Acid as compared to low knowledge.25

In this study, mothers who had a positive attitude were 90% more odds of good dietary practice than those mothers with a negative attitude. This finding is similar to the findings of Malaysia which indicated that lower dietary practices of mothers were associated with low attitude towards diet during pregnancy.26 This may have explained as when a woman has a positive attitude to diet during pregnancy, she becomes more concerned and can put it in to practice immediately.

As a strength, this study used non-healthcare provider (teachers) data collectors this could enable to have professionally unbiased data whereas a lack of previous similar study to made comparison is mentioned as a limitation.

Conclusion

In the current study, the prevalence of good dietary practice during pregnancy is only 32.2% which is below optimal. Educational status of the mother, monthly income, ANC visit, dietary knowledge, and positive attitude to dietary intake during pregnancy was found to be significant predictors of dietary practice. In order to improve dietary practice and alleviate the associated factors, the federal and regional government of Ethiopia, community health extension workers and other responsible stakeholders should focus on pregnant women to have ANC follow-up, increase knowledge and positive perception towards nutrition during pregnancy through community-based nutrition education program and local mass media. In addition, implementations of already existing key nutrition message need to be strengthened. Lastly, since high-income level is positively associated with good dietary practice, involving pregnant women in different sustainable income generating activities should also be considered.

Abbreviations

ANC, Ante Natal Care; AOR, Adjusted Odds Ratio; BMI, body mass index; CI, Confidence Interval; COR, Crude Odds Ratio; DURH, Dilla University Referral Hospital; ETB, Ethiopian Birr; HEW, Health Extension Worker; SD, standard deviation; SNNPR, Southern Nations Nationalities and People Region; SPSS, Statistical Package for the Social Sciences.

Ethical Consideration

All procedures undertaken during data collection were in accordance with the ethical review board of Dilla University and the Helsinki Declaration. The study was approved by the ethical review board of Dilla University. Before data collection, the objective of the study was told to the study participants. To keep participants secrete during the data collection period, a unique identification number was used. Consent for participants with age under 18years was taken from their parents/guardians. Finally written and verbal informed consent was given.

Acknowledgments

We would like to thank Dilla University College of health science and medicine for the unreserved help. Our thanks also go to Dilla Zuria Health Office which supplying the necessary information. Finally, it is a pleasure for us to thank all data collectors, supervisors, and those study participants.

Author Contributions

All authors contributed to data analysis, drafting or revising the article, have agreed on the journal to which the article will be submitted, gave final approval of the version to be published, and agree to be accountable for all aspects of the work.

Disclosure

The authors report no conflicts of interest for this work.

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