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Tella intake among pregnant and lactating mothers: may it affect child growth?

Published online by Cambridge University Press:  06 June 2022

Zelalem Tafese*
Affiliation:
School of Nutrition, Food Science and Technology, Hawassa University, Hawassa, Ethiopia
Yifru Berhan
Affiliation:
St. Paul's Hospital, Millennium Medical College, Addis Ababa, Ethiopia
Barbara J. Stoecker
Affiliation:
Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK, USA
*
*Corresponding author: Zelalem Tafese, email wudasiez@gmail.com

Abstract

Alcohol abuse among women is a public health importance that may impair prenatal and postnatal growth. Tella is among the most common homemade alcoholic beverages in rural Ethiopia, but little is known about the magnitude of tella intake during pregnancy and lactation or its effects on child growth. The present study investigated associations between maternal tella intake and the growth of their children. A cross-sectional mixed-methods study was conducted with mothers (n 228) and their 12–36-month-old children and with key informants (n 12). Tella intake during most recent pregnancy and lactation was estimated retrospectively by glasses per drinking event and frequency of events. Nearly 80 % of mothers had consumed some amount of tella during their most recent pregnancy and lactation. Furthermore, 72 % of children had tasted or drunk tella at some time during their life. Stunting was 42 % and was significantly associated with maternal tella consumption at least every other day during pregnancy (adjusted odds ratio (AOR) 4⋅97, 95 % confidence interval (CI) 2⋅20, 11⋅25), male sex (AOR 2⋅31, 95 % CI 1⋅27, 4⋅19), two or more under-5-year-old children in the household (AOR 3⋅52, 95 % CI 1⋅49, 8⋅33) and family size >5 (AOR 1⋅84, 95 % CI 1⋅01, 3⋅36). Underweight was 24⋅6 % and was associated with the child drinking tella with their mother (AOR 4⋅23, 95 % CI 1⋅99, 8⋅97), being male (AOR 3⋅73, 95 % CI 1⋅73, 7⋅94), having ≥3 diarrhoeal episodes in the last 3 months (AOR 11⋅83, 95 % CI 4⋅22, 33⋅14) and being in the older age group (AOR 2⋅98, 95 % CI 1⋅09, 8⋅13). The associations between tella intake and child growth suggest the need to mitigate the effects of tella on child anthropometry.

Type
Research Article
Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
Copyright © The Author(s), 2022. Published by Cambridge University Press on behalf of The Nutrition Society

Introduction

Globally, alcohol intake during pregnancy is a public health concern(Reference Popova, Lange and Probst1). Although consumption of alcoholic beverages is a risk factor for problems of growth and development of the fetus(Reference Hoyme, May and Kalberg2), a considerable number of women consume alcohol during pregnancy(Reference Popova, Lange and Probst1). In addition to the increased risk of occurrence of spontaneous abortion and preterm delivery among repetitive users of alcohol during pregnancy, there is an increased risk of fetal alcohol syndrome and fetal alcohol spectrum disorders, which are partly manifested by prenatal and postnatal growth deficiency(Reference Ornoy and Ergaz3,Reference McDonald and Watson4) . Due to the risks associated with alcohol intake during pregnancy, experts in most countries recommend that pregnant women abstain completely from alcohol intake(Reference Mpelo, Kibusi and Moshi5). However, policies in many developing countries have given little attention to these risks(Reference McDonald and Watson4). Locally prepared alcoholic drinks, in particular, may not be considered harmful to pregnancy outcomes. As a result, the burden of alcohol use during pregnancy in some African countries is high(Reference Ornoy and Ergaz3,Reference Isaksen, Østbye and Mmbaga6,Reference Culley, Ramsey and Mugyenyi7) .

Some authors identified alcohol consumption as a public health problem due to its wide use and the associated fetal and childhood complications(Reference Burd, Longhurst and Ernst8), as well as problems related to compromised placental blood flow to the fetus(Reference Sebastiani, Borrás-Novell and Casanova9). Furthermore, alcohol acts on the brain in different ways, depending on the type of brain cell and embryo-fetal development stage, leading to structural and functional changes, including cell death and impaired new cell formation(Reference Sebastiani, Borrás-Novell and Casanova9,Reference Cananzi and Mayhan10) .

Alcohol intake during pregnancy has been noted as a factor associated with birth defects(Reference Demelash, Motbainor and Nigatu11,Reference Aboye, Berhe and Birhane12) , low birth weight(Reference DeVido, Bogunovic and Weiss13) and stillbirth(Reference Liyew, Molla and Azene14). No consensus exists on a safe amount of alcohol that could be ingested during pregnancy, because even low levels of prenatal exposure may negatively affect embryo-fetal growth and development(Reference Kesmodel15). Therefore, national health services in various countries recommend that women completely abstain from using alcohol throughout their pregnancy period(Reference Culley, Ramsey and Mugyenyi7,Reference Kesmodel15) .

Variations in alcohol consumption have been reported among African countries(Reference Isaksen, Østbye and Mmbaga6,Reference Culley, Ramsey and Mugyenyi7,Reference Wubetu, Habte and Dagne16,Reference Mekuriaw, Belayneh and Shemelise17) . Although several studies found a considerable proportion of pregnant mothers in Ethiopia and elsewhere to consume alcohol(Reference Culley, Ramsey and Mugyenyi7,Reference Wubetu, Habte and Dagne16,Reference Mekuriaw, Belayneh and Shemelise17) , the association of maternal alcohol intake with child growth has not been well addressed.

Ethiopia has a variety of homemade traditional fermented beverages, including Tella, Tej and Araki (Reference Tafere18). Tella, by far the most common alcoholic beverage in rural Ethiopia, is made from different cereals, including sorghum, tef, wheat, barley and maize, and has 2–4 % alcohol content(Reference Lee, Regu and Seleshe19). Tella is perceived as a popular and harmless social drink that is highly valued by society(Reference Tafere18,Reference Lee, Regu and Seleshe19) . Thus, the primary aim of the study was to better understand the relation between maternal tella intake and the nutritional status of their 12–36-month-old children. Additional risk factors that might contribute to undernutrition of young children in communities within Ethiopia's Productive Safety Net Program (PSNP) areas were also investigated.

Methods

Study area and design

This retrospective mixed-method community-based cross-sectional study was conducted in the Meket district of the Amhara region from September to October 2019. The district was selected due to the high number of food-insecure households targeted for the development of food security activities. Of the 37 kebeles in the district, 10 kebeles (smallest administrative unit in Ethiopia) were selected randomly. Lists of food-insecure households targeted for PSNP with children in the age range of 12–36 months were prepared in each kebele by local community health workers.

Quantitative data collection

Sample size and sampling procedure

Using a single proportion population formula, a sample size of 231 mothers with children of age 12–36 months was calculated. The number of mother–child pair was proportionally allocated to the kebeles based on the total number of food-insecure households with 12–36-month-old children. Mothers interviewed were selected from the list of appropriate households in each kebele using a random number table. Women who were not permanent residents or who had mental problems would have been excluded but there were none. One child (with their mother) was excluded because the child was being treated for severe acute malnutrition (SAM).

Socioeconomic and demographic data collection

Experienced data collectors with bachelor's degrees were recruited from the study area and worked under the close supervision of the lead author. To ensure data quality, training was given for 2 d on the study objectives, the relevance of the study, informed consent, the confidentiality of the information and interviewing techniques. A pilot study was done with a few women to confirm possible local dialect variations and timing for administration. Maternal and household data were collected by face-to-face interviews with each mother at her residence using a pre-tested semi-structured questionnaire. The interview focused on maternal age, income and marital status, estimated average monthly household income, family size, number of under-5-year-old children and details about tella consumption as described in the following.

Child anthropometric data

Weight was measured without coats, shoes or additional heavy clothing using a calibrated SECA electronic balance with a measuring range of 25 kg (UNICEF Seca 770) and recorded to the nearest 0⋅1 kg(Reference De Onis20). Instrument calibration was checked before weighing each child and the weighing scale was tested daily against a standard weight for accuracy. Lengths or heights were measured without shoes using a stadiometer: for 6–23 months, length was taken and for 24–36 months height was recorded to the nearest 0⋅1 cm. Anthropometric classifications were based on global standards(Reference Cashin and Oot21). Children with length/height-for-age z-scores (LH/AZ) and weight-for-age z-scores (WAZ) below −2 sd of the median of the reference population were considered as stunted or underweight, respectively(Reference De Onis20). Each child's anthropometric status was calculated using the Emergency Nutrition Assessment for Standardized Monitoring and Assessment of Relief and Transitions (ENA for SMART, 2011) software, which utilises the WHO growth standards.

Child morbidity and feeding practices

Child illnesses, such as diarrhoea, respiratory tract infections or malaria were recorded as reported by the mother for 1 month prior to the survey. Mothers were also asked if their child had diarrhoea within the last 3 months. Child dietary data focused on the age complementary feeding began and consumption of animal-source foods (ASFs) as well as on child alcohol exposure.

Tella consumption by mother and child

The data on maternal tella intake were collected by asking about tella intake in the 24 h before the survey, as well as the frequency of intake during the last pregnancy and lactation periods. Mothers were also asked about the frequency of drinking events, the number of glasses of tella usually consumed per drinking event, about their reasons for consuming tella and about giving tella to their child.

Qualitative data collection and analysis

Twelve individual key informant (KI) interviews were conducted with eight purposely selected mothers, two agricultural extension workers and two health extension workers from the study area. The number of KI interviews was determined by the need to achieve saturation of information(Reference Vasileiou, Barnett and Thorpe22). The interviews provided the perception of the community about tella and confirmed the data on probable tella intake by mothers and children. Additionally, the KIs were asked the main reasons as why community members chose to consume tella, the frequency of tella preparation at the household level and the estimated proportion of household food crops used for tella production. For clarity of the qualitative information and to prevent loss of data, a voice recorder was used during each interview, and notes were taken by the interviewer and the lead author. These data were collected using the Amharic language as a medium. The qualitative data from KI interview transcripts were analysed thematically and triangulated with quantitative findings(Reference Weyers, Strydom and Huisamen23).

Quantitative data analysis

Stunting and underweight were dependent variables in the logistic analysis. The dichotomous variables for stunting and underweight were defined as 1 for stunted and 0 for not stunted, and 1 for underweight and 0 for not underweight. Quantitative data were checked, coded and analysed using STATA 14 (Stata/se 14) statistical package.

Categorical data were compiled using descriptive statistics (number and percentage), whereas mean and standard deviation were used to present continuous variables. The normal distribution of the data was checked with the Kolmogorov–Smirnov test(Reference Mishra, Pandey and Singh24). Bivariate analyses were conducted, and all variables with P < 0⋅25 were included in the multivariable logistic regressions. This selection of variables was based on the Wald test for logistic regression. A stepwise backward elimination technique was used to identify determinants of stunting, and underweight separately and adjusted odds ratios (AORs) with a P < 0⋅05 and their corresponding 95 % confidence intervals (CIs) were computed; and crude and adjusted odds ratios are reported. The model fit was checked using the Hosmer–Lemeshow goodness of fit test. Multivariable logistic regression analyses were conducted to determine associations of tella consumption and of other household and health-related factors with undernutrition. Associations were declared significant at P ≤ 0⋅05.

Ethical consideration

Ethical clearance was secured from the Institutional Review Board (IRB) of Hawassa University College of Medicine and Health Sciences. The study was also reviewed by the IRB at Oklahoma State University. Data were collected after getting permission from the district health office and obtaining informed consent from the eligible participants.

Results

Socio-demographic characteristics

From the total 243 proposed study participants, one child who was on SAM treatment and his mother were excluded from the study; complete responses were obtained from 228 respondents making the response rate 93⋅8 %. The mean family size was 4⋅8 (±1⋅5) persons (Table 1) and households with >2 under-5-year-old children were 15 % (data were not shown). The majority of the mothers were housewives 76 %. The mean ( and standard deviation) age of the children was 27⋅2 (sd 5⋅2) months and more than half (53 %) were males (Table 2).

Table 1. Socioeconomic and demographic characteristics of mothers and their tella consumption patterns, northern Ethiopia, 2019 (n 228)

Table 2. Child demographics, feeding and health characteristics in northern Ethiopia, 2019 (n 228)

a ASF = meat, milk, eggs and fish.

Tella intake during pregnancy and lactation

A large proportion (66⋅7 %) of mothers reported tella intake during the 24 h before the survey (Table 1). Among all mothers in the study, 25⋅4 % consumed two or more glasses of tella (total ≥500 ml) the day before the survey. During their most recent pregnancy, 78⋅5 % of mothers reported drinking some amount of tella; 41⋅2 % of all mothers had consumed tella at least once in 2 d and 37⋅3 % at least once in 3–7 d. Only 21⋅5 % of mothers reported no tella consumption during their last pregnancy.

Similarly, 81 % of all mothers had consumed tella during lactation; nearly 33 % of all mothers reported consuming at least once in 2 d while an additional 48 % consumed tella at least once in 3–7 d (Table 1). About 29 % of participants reported tella was consumed as food and 27 % said it helped for breast milk production.

Nearly half (48⋅6 %) of children whose mothers consumed tella during pregnancy were stunted, while only 18⋅4 % of children whose mothers did not consume tella during pregnancy were stunted (Table 2). However, although 41⋅3 % of children whose mothers consumed tella during lactation were stunted, 45⋅5 % of children whose mothers did not consume tella during lactation also were stunted. Also, 48⋅1 % of children from mothers who consumed tella both during pregnancy and lactation were stunted. Consistent with the quantitative findings, most KIs confirmed that tella is a socially acceptable drink used commonly by the community members. Particularly ‘Korefe’, a special type of tella, is prepared purely from barley and is widely accepted as nutritious for mothers and children. Furthermore, in addition to the perceived nutritional benefits, KIs agreed that some of the community members drank tella because they expected it would promote adequate breast milk production. A majority of KIs reported that a few community members drank tella with a belief that it cleanses the uterus after birth and estimated that most households used up to one-fourth of their household food grains for tella production.

Tella intake by the index child

Approximately 72 % of children had consumed some amount of tella at least once in their life (Table 2). During 6–12 months of age, 9⋅7 % of children started to taste tella and an additional 60 % started to drink it at the age of ≥1 year. Most of the KIs agreed that regardless of age most mothers put a drop of tella in the young infant's mouth during drinking events and offered tella with a cup at the age of ≥1 year.

Child feeding and morbidity characteristics

Only 44⋅3 % of mothers began complementary food for their child at the age of 6 months; others began either before or after that age (Table 2). More than 40 % of children were fed ASF only for holidays (six to seven times per year). Regarding the morbidity status of children, 91 % had a history of illness at least once in the month before the survey, and 50 % of them had at least one episode of diarrhoea within 3 months before the survey.

Factors associated with stunting

In the adjusted logistic regression model (Table 3), maternal tella consumption every day or two during pregnancy, the number of children under-5 years in the household, sex and the family size were significantly associated with stunting. The odds of being stunted were increased by nearly five times (AOR 4⋅97, 95 % CI 2⋅20, 11⋅25) among children born of mothers who reported consuming tella at least once in 2 d during their recent pregnancy. Being male increased the likelihood of stunting by more than two times (AOR 2⋅31, 95 % CI 1⋅27, 4⋅19) compared to females. The odds of being stunted increased by more than threefold if the household had >2 under-5-year-old children (AOR 3⋅52, 95 % CI 1⋅49, 8⋅33). Furthermore, the probability of being stunted approached two times higher among children living in a family of five or more (AOR 1⋅84, 95 % CI 1⋅01, 3⋅36).

Table 3. Results of bivariate and multivariable logistic regression models showing the risk factors of child stunting, northern Ethiopia, 2019 (n 228)

AOR, adjusted odds ratio; COR, crude odds ratio.

a Reference categories.

b ASF = meat, milk, eggs and fish.

* Statistically significant P < 0⋅05.

** Statistically significant P < 0⋅001

Factors associated with underweight

The child having tella during each maternal drinking event, male sex and ≥3 diarrhoeal episodes within the 3 months before the survey (all P < 0⋅001), as well as being in the age group of 24–36 months (P < 0⋅05) were significantly associated with underweight (Table 4). The odds of being underweight were nearly threefold higher among children in the age groups of 24–36 months (AOR 2⋅98, 95 % CI 1⋅09, 8⋅13). The likelihood of being underweight was more than three times higher among male children (AOR 3⋅73, 95 % CI 1⋅73, 7⋅94). The odds of being underweight were more than eleven times higher among children who had three or more episodes of diarrhoea during 3 months before the survey (AOR 11⋅83, 95 % CI 4⋅22, 33⋅14). Furthermore, the likelihood of being underweight was more than fourfold higher among children who had tella during each maternal drinking event (AOR 4⋅23, 95 % CI 1⋅99, 8⋅97). Because the prevalence of wasting was 14⋅5 %, the sample size was too small to allow further analyses of factors associated with wasting.

Table 4. Results of bivariate and multivariable logistic regression models showing the risk factors of child underweight, northern Ethiopia, 2019 (n 228)

AOR, adjusted odds ratio; COR, crude odds ratio.

a Reference categories.

b ASF = meat, milk, eggs and fish.

* Statistically significant P < 0⋅05.

** Statistically significant P < 0⋅01.

Discussion

Our findings showed a significant association of child undernutrition among mothers with frequent consumption of tella during pregnancy, and similar findings was reported with previous studies(Reference Modjadji and Pitso25,Reference Getaneh, Melku and Geta26) . The high prevalence of stunting and underweight in the present study was also consistent with previous studies from Ethiopia(Reference Yalew27,28) . Our data demonstrated that the main factors predicting child undernutrition were sex, age of the child, number of under-5-year-old children in the family, family size, maternal tella intake during pregnancy, frequency of diarrhoeal episodes and frequently offering the child tella during each drinking event. Some of these risk factors are consistent with previously identified factors such as being male and being more than 12 months old(Reference Islam, Sanin and Mahfuz29), larger family size(Reference Girma, Woldie and Mekonnen30), frequent diarrhoeal episodes(Reference Richard, Black and Gilman31) and frequent intake of alcohol during pregnancy(Reference Backstrand, Goodman and Allen32,Reference Carter, Jacobson and Sokol33) . As noted by a prior study, prenatal alcohol exposure was associated with growth restrictions in weight and height, which is largely determined by birth. These growth restrictions are a particular problem among children born to women with alcohol abuse and/or dependence(Reference Bandoli, Coles and Kable34,Reference Popova, Dozet and Laboni35) . This may be because alcohol passes the placental barrier and allows alcohol to reach the fetus. This causes vascular constriction which compromises placental blood flow and contributes to intrauterine growth retardation and childhood stunting. Although we have not found published data in Ethiopia or elsewhere to compare our findings regarding the effect of alcohol intake by infants and young children on growth, the present study found that a majority of children start to taste tella at an early age. We suggest that this may exacerbate child growth restriction in the study setting.

The prevalence of alcohol (tella) intake by mothers during pregnancy was high (78⋅5 %) compared with previous reports from southern (8⋅1 %)(Reference Mekuriaw, Belayneh and Shemelise17) and northern (16⋅1 %) Ethiopia(Reference Wubetu, Habte and Dagne16).

The significant association of frequent tella drinking events during pregnancy with stunting in the present study was consistent with a study in New Zealand, which assessed maternal alcohol intakes before and during pregnancy and reported their association with child growth restriction among children(Reference McDonald and Watson4). Another study also demonstrated the association of prenatal alcohol exposure with intrauterine growth restriction and suggested that this effect might persist well into early adulthood(Reference Carter, Jacobson and Sokol33).

In the present study, more than 80 % of mothers drank tella during lactation for a variety of reasons including optimising breast milk production. This is consistent with a finding reported by a recent review article, Popova and colleagues(Reference Popova, Dozet and Laboni35). However, a systematic review has indicated that alcohol consumption resulted in a decrease in total breast milk yield(Reference Giglia36). Furthermore, studies demonstrate that maternal alcohol consumption may slightly reduce milk. Because some amount of alcohol consumed by a lactating woman is transferred to her milk the infant is thus exposed to alcohol. This exposure may play a negative role in infant development during this critical period(Reference Mennella37). In line with this report, the present study identified that children who had tella during each maternal drinking event were more than fourfold more likely to be underweight than those who never had tella. This may be due to the effects of alcohol on decreased appetite, digestion and nutrient uptake. However, we are not aware of studies in Ethiopia or elsewhere regarding the effect of drinking tella or other alcoholic beverages by the child at an early age.

The qualitative findings from the present study showed that despite some disparity among the KIs on the frequency of tella production at the household level and the number of food crops used by the household, the majority of KIs agreed that most households used up to one-fourth of household food grains for tella production and most households produced tella at least once in a month. The number of household food grains used for tella production may exacerbate the existing food insecurity in the study area. Utilisation is one dimension of food security(38); hence, a strategy to advance food and nutritional security must consider utilisation rather than just producing more food(Reference Lal39). In this regard, utilising a portion of household food crops for tella production may be a neglected factor for food shortage in a family, particularly in food-insecure areas. Adequate consideration by all nutrition actors and further study is required to quantify its effect.

Even though tella consumption is accepted by the community, the amount and frequency of drinking may be under-reported by the study participants because of the possible social desirability and recall bias during the interview. Similarly, retrospective estimation of the quantity and frequency of tella consumed is difficult due to the lack of common glass sizes and differences in the frequency of drinking events. Additionally, a causal relationship between the mentioned factors and the nutritional status of children cannot be inferred because of the cross-sectional design of the study which remains a limitation of the study.

Conclusion

In conclusion, the present study confirmed previous findings on associations among male sex, family size, frequent diarrhoea and alcohol intake during pregnancy with child undernutrition. The prevalence of alcohol intake during pregnancy and lactation was higher compared with prior studies in Ethiopia. Even though the relationship may not be direct, the present study highlighted the negative nutritional implications of maternal tella intake on the growth of children. This implies the need for programmes to address the effects of alcohol among pregnant and lactating women. Furthermore, the possible effects of household tella production on food insecurity should also be emphasised.

The present study confirmed that tella is a socially acceptable alcoholic drink in the study area, suggesting that a strategy to reduce the effects of tella in the area will require thoughtful work considering the beliefs and culture of the community. Mass media campaigns and appropriate behavioural change communication models are recommended as strategies for intervention in alcohol consumption during pregnancy and lactation in the study area and similar settings.

More research on the effect of tella intake on fetal growth and neurocognitive development, as well as quantifying the effect of tella production on food insecurity is recommended. This work addresses issues of maternal alcohol intake which were inadequately considered in the past and provides baseline data for further investigation of this traditional fermented alcoholic product.

Acknowledgements

We acknowledge the mothers who gave their time to participate in this study and the data collectors who tirelessly worked to complete this study. We are also grateful to Hawassa University Strengthen PSNP Institutions and Resilience (SPIR)/Development Food Security Activity (DFSA) project. The funding was only for data collection.

Z. T. conceptualised the study, developed the study design and was involved in the analysis. Z. T., Y. B. and B. J. S. performed statistical analysis and interpretation of the data. Z. T. wrote the first draft. B. J. S., Y. B. and Z. T. edited the draft manuscript. All authors have reviewed the final manuscript and approved it before submission.

The authors declare that they have no competing interests.

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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Table 1. Socioeconomic and demographic characteristics of mothers and their tella consumption patterns, northern Ethiopia, 2019 (n 228)

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Table 2. Child demographics, feeding and health characteristics in northern Ethiopia, 2019 (n 228)

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Table 3. Results of bivariate and multivariable logistic regression models showing the risk factors of child stunting, northern Ethiopia, 2019 (n 228)

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Table 4. Results of bivariate and multivariable logistic regression models showing the risk factors of child underweight, northern Ethiopia, 2019 (n 228)