Determinants of undernutrition among children aged 6–59 months during the COVID-19 pandemic: A hospital-based cross-sectional study in Ethiopia

Abstract

Background:

The public health problem of undernutrition is common in Ethiopia, particularly among children aged 6–59 months. However, determinants of undernutrition among children in this age group are not well investigated particularly within the context of COVID-19 pandemic. This study was, therefore, designed to assess the magnitude and determinants of undernutrition among children aged 6–59 months at Tirunesh Beijing general hospital, Ethiopia.

Methods and materials:

An institutional-based cross-sectional study was conducted involving 283 children aged 6–59 months in March 2022. The data were collected using structured questionnaire and anthropometric measurements. Undernutrition was defined as a Z-score value of weight for height (WFH), height-for-age (HFA), and weight-for-age (WFA) <2SD as calculated by the world health organization plus software. A multivariable logistic regression model was used to identify the independent factors associated with undernutrition. p-values less than 0.05 were considered statistically significant.

Results:

The response rate in this study was 97.9%. The overall magnitude of undernutrition was 34.3%, of which 21.2%, 12.7%, and 9.5% were stunted, underweight, and wasted, respectively. Occupation of mothers [AOR = 13.64, 95% CI (4.21–14.77)], amount of meal [AOR = 14.68, 95% CI (4.09–52.81)], feeding by caregivers [AOR = 8.96, 95% CI (2.81–18.60)], and breastfeeding [AOR = 0.06, 95% CI (0.02–0.22)] were significant predictors of undernutrition.

Conclusions:

The prevalence of undernutrition among children under the age of five remains high. Therefore, promoting breastfeeding and motivating children to feed adequate amount of meal are recommended. Besides, counseling and/or guiding caregivers on how to feed children shall be suggested. The findings could help inform the design and prioritization of effective intervention strategies at early life stage.

Keywords

Undernutrition stunting wasting underweight under-five children Ethiopia

Introduction

Undernutrition is defined as the lack of essential nutrients to meet an individual’s needs to maintain good health.¹ It is among the leading public health problems, primarily affecting children aged 6–59 months.^2,3 According to the World Health Organization (WHO) report, there were millions of undernourished children in this age group including 47 million wasted, 14.3 million severely wasted, and 144 million stunted in 2020.¹ As a consequence, undernutrition is responsible for more than one-third of all deaths in children under the age of five worldwide,⁴ which is nearly equivalent to 400,000 childhood mortality every year.⁵

Mainly owing to socioeconomic status, undernutrition is prevalent in developing countries including Asia and Sub-Saharan Africa.⁶ Infant and under-five deaths are on a rising trend, particularly in Sub-Saharan Africa, where under-five mortality is 15 times higher than that in developed nations.⁷ Before the onset of COVID-19 pandemic, an estimated 47 million children younger than 5 years, most living in sub-Saharan Africa and south Asia, were moderately or severely wasted.^8,9 Indeed, the status of nutrition in Sub-Saharan Africa seemed to have improved slowly and unevenly across different countries.¹⁰ For instance, Niger (40%) and Burundi (58%) had the highest percentages of underweight and stunting, respectively, while Swaziland (7%) and Gabon (21%) showed the lowest rates of underweight and stunting, respectively.¹¹ However, the magnitude of undernutrition remains a huge public health concern particularly among children under-5 years of age in developing countries due to COVID-19 pandemic.¹²

Nowadays, the COVID-19 pandemic is affecting the socioeconomic status of people which could further exacerbate undernutrition and food insecurity issues in different developing countries.^13,14 A study conducted in low-and middle-income countries reported that the prevalence of moderate or severe wasting would increase by 14.3% among under-five children due to the socioeconomic effects of COVID-19.¹⁵ One in 10 deaths among under-five children in low and middle income countries is attributable to severe wasting because wasted children are at increased risk of mortality from infectious diseases.¹⁶ According to the Lancet projection, for instance, the number of wasted under-five children in Bangladesh increased from 1.7 million in 2019 to 1.9 million in 2020¹⁷ and the magnitude of undernutrition increased by 51.7% during the COVID-19 lockdown periods. This is linked with the economic impact of social distancing, full or partial lockdowns, and quarantining.¹⁸

Various findings have identified socioeconomic factors, feeding practices, and maternal and child health conditions as common risk factors for undernutrition.^19–21 In addition, malnutrition involves a wide range of factors, such as personal and environmental hygiene, infection disease, household’s financial condition, income, residence, occupation, education, maternal age, and family size.²² For instance, in Bangladesh during the COVID-19 pandemic, there was a decline in household food security and dietary diversity.²³

Undernutrition places a heavy burden on the Ethiopian economy while also affecting societal health.²⁴ Approximately half of the Ethiopian children had been suffering from severe undernutrition.²⁵ As per the 2016 Ethiopia Demographic and Health Survey (EDHS), 38% of Ethiopian children under the age of five were stunted, 10% were wasted, and 24% were underweight.²⁶ It is of high concern as malnutrition could pose numerous short and long-term consequences^27–29 including physical and psychological disorders, mortality, morbidity, and economic loss due to treatment cost and reduced productivity.³⁰ Indeed, the magnitude of undernutrition in Ethiopia varies from place to place. For instance, in West Arsi zone (Oromia), stunting, underweight, and wasting were found to be 44.1%, 39.6%, and 12.5%, respectively.³¹ Similarly, in the capital city (Addis Ababa), the burden of undernutrition was reported to be 31%, where stunting and underweight were significant public health problems among children aged 6–59 months.¹⁹

However, there is no evidence about the determinants of undernutrition among children aged 6–59 months during the period of COVID-19 pandemic. Therefore, this study seeks to identify the determinants of undernutrition among children aged 6–59 months in the Ethiopian capital city, Addis Ababa. The findings from this study could help provide insights into possible intervention approaches.

Methods and materials

Study area, design, and period

An institutional-based cross-sectional study was conducted to identify the magnitude and determinants of undernutrition among children aged 6–59 months who visited Tirunesh Beijing general hospital between the 1st and the 20th of March 2022. Tirunesh Beijing hospital is one of public hospitals located in Addis Ababa, Ethiopia. The hospital was established in February, 2019. It has more than 536 health professionals and 239 supportive staff. The hospital provides variety of services including maternal and child health, inpatient and outpatient surgical and medical services. According to the hospital records, over 18,000 under-five children visit the hospital every year.

Study participants

The study participants were sampled from all children aged 6–59 months and their mothers/fathers/caregivers who visited Tirunesh Beijing general hospital for different health care services during the study period. Children aged 6–59 months who had severe illness, such as physical deformities and chronic illnesses (TB, HIV, renal disease, and cardiac diseases), were excluded from the study.

Sample size determination

The sample size was calculated by using a single population proportion formula. The assumptions of 95% confidence level (Zα/2 = 1.96), proportion (p) of undernutrition among children aged 6–59 months (21.8%), which was taken from a study conducted in Jimma,³² and margin of error (d = 5.0%) were considered. By adding a 10% non-response rate, the final sample size becomes 289.

Sampling technique

According to the data obtained from Tirunesh Beijing hospital, annually, 18,124 children under-5 years of age visit the hospital for different health services. On average, 50 under-five children are being treated from different wards per day. The determined sample size was proportionally allocated per wards (immunization, inpatients, and other outpatient pediatrics departments) (Figure 1). Then, simple random sampling technique was used to select participants.

Figure 1.

Sampling procedure to assess undernutrition status among children 6–59 months, Ethiopia, 2022. Hint: N1 and N2 = number of children aged 5–59 months visiting the hospital and different wards, respectively, for 20 days, n = sample size.

Data collection and quality control

The data were collected using pre-tested structured questionnaire. The questionnaire was prepared in English, translated to the local language (Amharic) and then translated back to English to ensure consistency. Face to face interview and anthropometric measurements were used. The children’s dietary status was assessed using a method adapted from food and agriculture organization.³³ The length of children between the ages of 6 and 24 months old who couldn’t even stand upright was measured using a horizontal wooden length board in recumbent position and read to the nearest 0.1 cm, whereas the height of children over 2 years old who could stand upright was measured using a stadiometer scale without shoes. The child’s weight was calculated to the nearest 0.1 kg using a beam balance. Weight was taken while wearing only light clothing and no shoes. Before weighing each child, the instrument was calibrated. The weighing scale’s accuracy was checked daily against a standard weight. Normal thumb pressure was applied to both feet for 3 s to check for edema. When the thumb was lifted, the data collectors checked if a shallow print remained on both feet. Individual anthropometric measurements were calculated using standardized WHO Anthro software version 3.2.2. The data were collected by three trained clinical nurses and supervised by one senior public health officer. All the required data were collected for 20 consecutive days.

Study variables

The outcome variable in this study was undernutrition and the independent variables were socio-demographic characteristics, feeding practice of children, family health service of children, and hygiene and environmental factors.

Operational definitions

Undernutrition

Children who had at least one or more Anthroplus software measurements with z-scores of less than 2 standard deviations (SDs) of weight for height (WFH), height-for-age (HFA), and weight-for-age (WFA).³⁴

Stunting

Children with HFA z-scores of less than 2 standard deviations (SDs) as measured by the Anthroplus software.³⁴

Wasting

Children with z-scores for WFH of less than 2 standard deviations (SDs) as measured by the Anthroplus software.³⁴

Underweight

Children with Anthroplus software measurement z-scores of less than 2 standard deviations (SDs) for WFA.³⁴

Low dietary diversity

When consuming no more than three of the seven types of food.³⁵

Minimum dietary diversity

When at least four out of seven types of food are consumed.³⁵

Standardized latrine

Latrine had adequate ceilings and walls, and were graded as good.³⁶

Unstandardized latrine

Latrines without covers or walls and being used by household though they were graded as bad latrines.³⁶

Data processing and analysis

The collected data were checked, coded, and entered into Epi data 3.1 and analyzed using SPSS version 26. Data cleaning and assumption checking were performed prior to the analysis. Descriptive statistical analysis was conducted to describe the characteristics of the study participants. Individual anthropometric measurements were entered into WHO Anthro Plus to calculate the Z-value (HFA, WFH, and WFA). Logistic regression model was fitted to identify the association between the independent variables and the outcome variable. Both bivariable and multivariable logistic regression analyses were computed with their 95% confidence interval. From the bivariable analysis, the independent variables that show strong association with the dependent variable at p-value less than 0.25 were included into the multivariable logistic regression model. In the multivariable logistic regression, p-values less than 0.05 were used for statistical significance. Model fitness was checked using Hosmer and Lemeshow test and multicollinearity was tested using collinearity diagnostic statistics (correlation matrix, variance inflation factor, and tolerance test).

Ethical consideration

This study was conducted in accordance with the Declaration of Helsinki. Rift Valley University Ethical review committee provided ethical clearance (192/RVU/2021). Addis Ababa City Public Health Institute as well as Tirunesh Beijing Hospital’s emergence control and management office provided permission letters. The study objectives, benefit, and risks were explained to the participants before data collection, and informed consent was obtained from mothers or caregivers of participating children. The mothers/fathers/caregivers of the children were also informed that the privacy and confidentiality of the information will be protected by instructing data collectors not to record any identifying information found on the card and that the information they give us will not be used for any purpose other than the study. The right to refuse or withdraw was upheld and the information was kept private.

Results

Socio-economic and demographic characteristics of study participants

In this study, a total of 283 study participants have participated giving a response rate of 97.9%. The average age of the children and mothers was 20.78 ± 12.21 months and 27.47 ± 3.75 years, respectively. In terms of educational status, 171 (61.4%) of mothers attended primary and/or secondary school whereas, less than half of the fathers (122, 43.1%) attended higher education. One hundred sixty-two (57.2%) of the respondents had information about child nutrition primarily from mass media (81, 50%) (Table 1).

Table 1.

Socio-economic and demographic characteristics of children/family, Tirunesh Beijing hospital, Addis Ababa, Ethiopia, 2022.

Variables	Category	Number	Percent (%)
Age of children	6-11 months	89	31.4
	12-23 months	97	34.3
	Above 23 months	97	34.3
Sex	Male	142	50.2
Sex	Female	141	49.8
Family size	Below 3	167	59
Family size	3 and above	116	41
Education of mother	No formal education	82	29
	Primary and/or secondary education	171	61.4
	Certificate and Above	30	10.6
Education of father	No formal education	45	15.9
	Primary and/or secondary	116	41
	Certificate and Above	122	43.1
Father occupation father	Job seeker	22	7.8
	Government	139	49.1
	Private	122	43.1
Mother occupation	House wife	150	53
Mother occupation	Other	133	47
Marital status	Married	267	94.3
Marital status	Divorced	16	5.7
Information	Yes	162	57.2
Information	No	121	42.8
Source of information	School	27	16.7
	Mass media	81	50
	Health care providers	54	33.3

Feeding practice and dietary diversity

Nearly two-thirds (63.6%) of the children had a higher dietary diversity score, while more than half (54.4%) of the children aged 6–59 months were not fed with adequate food. Similarly, 157 (55.5%) of the children were currently breast-fed, while 65.4% of the children over the age of 2 years had achieved optimum breastfeeding (Table 2).

Table 2.

Feeding practice of children aged 6–59 months attending health service at Tirunesh Beijing hospital, Addis Ababa, Ethiopia, 2022.

Variables	Category	Number	Percent (%)
Dietary diversity	Lower	103	36.4
Dietary diversity	Higher	180	63.6
Meal amount	Not appropriate	154	54.4
Meal amount	Appropriate	129	45.6
Complementary feeding	Not appropriate	190	67.1
Complementary feeding	Appropriate	93	32.9
Who feeds the child	Mother	129	45.6
Who feeds the child	Caregiver	154	54.4
Currently on breast feeding	Yes	157	55.5
Currently on breast feeding	No	126	44.5
Optimum breast feeding	Yes	51	65.4
Optimum breast feeding	No	27	34.6
Meal frequency (per day)	Two or less	2	0.7
	Three times	243	85.9
	Four and above	38	13.4

Children and family health service-related factors

The current study indicated that about one-fourth (26.5%) of the children were sick at the time of data collection; diarrhea being the most frequently reported disease with 44 (58.7%) mentions. About 175 (61.8%) of the children had received vitamin-A supplementation in the previous 6 months, but the majority were not enrolled in the growth monitoring program (173, 61.3%). Once more, more than half (52.3%) of the children aged 6–59 months were not immunized as per the schedule (Table 3).

Table 3.

Children and family health service among children aged 6–59 months attending at Tirunesh Beijing Hospital, Addis Ababa, Ethiopia, 2022.

Variables	Category	Frequency	Percent (%)
Sick	Yes	75	26.5
Sick	No	208	73.5
Disease (n = 75)	Diarrhea	44	58.7
	Fever	22	29.3
	Cough	9	12
Family infected by COVID-19	Yes	32	11.3
Family infected by COVID-19	No	251	88.7
Vitamin A	Yes	175	61.8
Vitamin A	No	108	38.2
Growth monitoring	Yes	110	38.9
Growth monitoring	No	173	61.1
Immunization	Immunized as per schedule	135	47.7
	Not immunized as per schedule	148	52.3

Hygiene and environmental factors

Only 150 (53%) children aged 6–59 months washed their hands with soap. A good proportion of the study participants (92.9%) used standardized latrines (Table 4).

Table 4.

Hygiene and environmental factors likely to affect children aged 6–59 months attending health service at Tirunesh Beijing hospital, Addis Ababa, Ethiopia, 2022.

Variables	Category	Number	Percent (%)
Food prepared at home	Yes	219	77.4
Food prepared at home	No	64	22.6
Using soap for hand washing	Yes	150	53
Using soap for hand washing	No	133	47
Type of latrine	Standardized	263	92.9
Type of latrine	Unstandardized	20	7.1

Magnitude of undernutrition

The overall proportion of undernutrition was 34.3% (95% CI: 29–40), with stunting being 21.2% (95% CI: 16.8–26.4), underweight 12.7% (95% CI: 9.3–17.2), and wasting 9.5% (95% CI: 6.6–13.6).

Factors associated with undernutrition

Occupation of mothers, amount of meal, children feeders, and breast-feeding had statistically significant association with the outcome variable (Table 5). The odds of undernutrition were 13 times higher among children who had non-housewife mothers as compared to those who had housewife mothers [AOR = 13.6, 95% CI (4.2–14.8)]. Children who did not eat enough food for their age were 14 times more likely to become malnourished than others [AOR = 14.68, 95% CI (4.09–52.81)]. Similarly, the odds of undernutrition were almost nine times higher among children who were fed by caregivers or fathers than children who were fed by their mothers [AOR = 8.9, 95% CI (2.8–18.6)]. Once more, children who were being breast-fed or met optimum breast-feeding requirements were less likely to develop undernutrition than those who never breast-fed or stopped breast-feeding early [AOR = 0.06, 95% CI (0.02–0.22)].

Table 5.

Factors associated with undernutrition among children aged 6–59 months attending health services at Tirunesh Beijing Hospital, Addis Ababa, Ethiopia, 2022.

Variables	Category	Undernutrition		COR at 95% CI	AOR at 95% CI
Variables	Category	Yes (%)	No (%)	COR at 95% CI	AOR at 95% CI
Occupation of mothers	Housewife	75 (56.4)	58 (43.6)	1	1
Occupation of mothers	Other	22 (14.7)	128 (85.3)	6.53 (3.73–11.43)	13.64 (4.21–14.77)*
Amount of meal	Appropriate	17 (13.2)	112 (86.6)	1	1
Amount of meal	Not appropriate	80 (51.9)	74 (48.1)	7.12 (3.91–12.99)	14.68 (4.09–12.8*)
Who feed	Mother	12 (9.3)	117 (90.7)	1	1
Who feed	Caregiver/father	85 (55.2)	69 (44.8)	12.01 (6.12–23.56)	8.96 (2.81–18.60)*
Breast feeding	Optimum/current feeding	28 (17.8)	129 (82.2)	0.18 (0.11–0.31)	0.06 (0.02–0.22)*
Breast feeding	Ever breast feed/early-stop breast feeding	69 (54.8)	57 (45.2)	1	1

p-value <0.005.

Discussion

This study was conducted with the aim of assessing determinants of undernutrition among children aged 6–59 months during the COVID-19 pandemic in Addis Ababa (Ethiopia). In this study, the overall magnitude of undernutrition was found to be 34.3% (95% CI: 29–40), of which 21.2%, 12.7%, and 9.5% were stunted, underweight, and wasted, respectively. According to the WHO category, the magnitude of stunting and underweight were categorized as “medium prevalence” and wasting was categorized as “poor.” Wasting was particularly a critical public health problem according to the WHO’s child growth standards classification cut-off value.³⁷

Our finding on the magnitude of undernutrition was consistent with the previous studies conducted before the pandemic in Bure (35.5%)⁶ and Addis Ababa (31%).¹⁹ On the other hand, this figure was lower than the reports from Bishoftu (46.1%).³⁸ that were conducted before the pandemic as well. The disparities might be due to the types of interventions, feeding practices (dietary diversity), meal frequency, and differences in socio-economic status.

The present study indicates that the proportion of stunting was 21.2%. This figure was comparable with the study findings in Jimma (21.8%),³² Sodo Zuria district (24.9%),³⁹ and global report of 2016 (22.9%).⁶ However, our finding was lower than these conducted in Mozambique (44%),⁴⁰ Bule Hora district (47.6%),⁴¹ Gondar Town (42.3%),²⁵ western Uganda (30.5%),⁴² and other study conducted in Ethiopia (37%).⁴³ On the other hand, our finding was slightly greater than the report from Bishoftu (16%),³⁸ which was conducted before the COVID-19 pandemic. This discrepancy might be associated with sociodemographic variation, access to formal education, awareness creation activities by health care providers, and information accessibility. For instance, in our study, 162 (76.3%) mothers were getting access to information from different source, of which 54 (33.3%) of them get from health care providers and more than 238 (84.1%) mothers have access to formal education and all of them were urban dwellers.

The prevalence of underweight in our study was in agreement with that reported in Addis Ababa (12.3%).⁴⁴ Indeed it was slightly lower than the reports in Jimma town pre-school children (36–59 months) (15.2%).³² Similarly, this figure was lower than the study findings in India (37%),⁴⁵ Burundi (40%),¹¹ and Bishoftu Town (22%).³⁸ The discrepancy might be due to socio-cultural difference, such as child feeding practice and health care seeking practices. Higher underweight in relatively higher age children could be associated with the fact that children at this age start feeding out of the family pot and enjoy common family food, and hence they are likely to be exposed to inappropriate feeding behaviors. These children also often receive less attention from mothers or caregivers.

In the current study, the magnitude of wasting (9.5%) was consistent with studies conducted in Tanzania (11.5%),⁴⁶ Damot, South Ethiopia (9%),⁴⁷ Hawassa town (10%),⁴⁸ and Shashamane (10%)³¹ that were conducted before the COVID-19 pandemic. Nevertheless, it was lower than these reported in India (24.5%)⁴⁵ and Kenya (57.1%).⁴⁹ The variation might be due to differences in study setting and educational status of the family. For example, our study was conducted in urban area and more than half of the mothers were educated. This probably enabled our study participants to have access for increased dietary diversity, and hence become food secured even during the pandemic period.

Our finding was, however, slightly higher than that found in Gondar town (6.8%)⁴⁷ and western Uganda (7.4%)⁴² that were conducted before the pandemic. Indeed, considering the WHO’s child growth standards classification,³⁷ the magnitude of wasting is a huge concern.

Evidences from a previous study indicated the significant direct effect of COVID-19 on children’s undernutrition in developing countries.⁵⁰ As our study was conducted during the COVID-19 lockdown period, the nutritional status of the study population was expected to be worse. On top of that, in our study, 32 (11.3%) of children’s family were infected with COVID-19. Despite that, as more than half of the mothers were housewives and educated, they took care of their children, easily understand and apply recommended procedures to feed them. Therefore, exceptionally large figures of stunting and underweight were not recorded in this study.

Mothers’ occupation was also identified as an important determinant factor for undernutrition. The odds of undernutrition were almost 13 times higher among children who had non-housewife mothers than others. This finding was consistent with studies conducted in Ethiopia.⁴³ The possible justification is that when mothers and fathers stay at home, they could have time to prepare and feed their children with diversified food. On the other hand, non-housewife mothers, particularly those with fewer resources and a history of vulnerability, are more likely food insecure and their children could be affected with undernutrition.³⁸

Our finding indicated breastfeeding had protective effect on undernutrition. Children who are ever breast feed or early-stop breast feed were more likely to experience undernutrition as compared with currently on breastfeeding or meet optimum breastfeeding. Breastfeeding has an important role in the prevention of different forms of childhood malnutrition problems including stunting, wasting, over- and underweight, and micronutrient deficiencies. Children who could get adequate breastfeeding required for their growth and development will not be exposed for undernutrition and associated childhood morbidity and mortality.

The other statistically significant factor associated with undernutrition was the amount of food. The present study indicated that the odds of undernutrition were 14 times higher among children who did not eat enough food than those who ate enough food. It is widely known that lack of adequate amount of food, economy, and feeding frequency increase the risk of malnutrition.

Moreover, the odds of undernutrition were almost nine times higher among children who were fed by caregivers than children fed by their mothers. The concern is alarming in this study as more than half (54.4%) of the children were fed by caregivers. Most of the time, caregivers might not be aware of the importance of nutrition and its effects on children’s growth. Our finding was consistent with studies conducted in other parts of Ethiopia.⁵¹

Limitations of the study

There might be a potential recall bias on the feeding practices. In addition, as the finding was limited to one local area (Tirunesh Beijing Hospital), the outcome variable is liable to over or under estimation.

Conclusions

In this study, the overall proportion of undernutrition among children aged 6–59 months was 34.3%. Of this, the magnitudes of stunting, underweight, and wasting were 21.2%, 12.7%, and 9.5%, respectively. Occupation of mothers, breastfeeding, feeding by caregivers, and amount of meal were significant factors associated with undernutrition during the COVID-pandemic period. Therefore, in order to reduce the burden of undernutrition, healthcare workers should promote breastfeeding. Counseling and/or guidance on how to feed children should be given for caregivers. It is also suggested to motivate children to feed adequate amount of meal.

Footnotes

Declaration of conflicting interests

The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

Funding

The author(s) received no financial support for the research, authorship, and/or publication of this article.

ORCID iD

Sisay Abebe Debela

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