|Year : 2022 | Volume
| Issue : 2 | Page : 174-181
Prenatal Alcohol Intake and Knowledge of its Effect: A Survey of Pregnant Women Attending a General Hospital in South East, Nigeria
Chisom Joy Mbadugha1, Joyce Chinenye Arinze1, Nneka Chekwube Odoh2, Adaobi Lilian Obiekwu1, Ngozi Joy Omotola1, Chiamaka Jennifer Okafor1
1 Department of Nursing Sciences, University of Nigeria, Enugu Campus, Enugu, Nigeria
2 82 Division Military Hospital Enugu, Nigeria
|Date of Submission||16-Aug-2021|
|Date of Decision||27-Dec-2021|
|Date of Acceptance||12-Feb-2022|
|Date of Web Publication||29-Apr-2022|
Adaobi Lilian Obiekwu
Department of Nursing Sciences, University of Nigeria, Enugu Campus, Enugu
Source of Support: None, Conflict of Interest: None
Background: Alcohol consumption during pregnancy is a major public health concern due to its noxious effect on both the mother and fetus. Aim: The study aim was to determine the prevalence of prenatal alcohol intake, knowledge of its effects, and associated factors among pregnant women attending antenatal clinic, Poly General Hospital, Enugu. Materials and Methods: A descriptive cross-sectional survey was adopted and simple random sampling was employed to select 248 pregnant women from the total population. Data were obtained using structured questionnaires, summarized using descriptive statistics, and presented in tables. Statistical analysis for associations between level of educational attainment, occupation of the pregnant woman, and knowledge of the effects of alcohol consumption was performed using Chi-square tests. Results: The prevalence of alcohol use during pregnancy was 40.3% with beer (48.8%) and palm wine (48.8%) being the major alcoholic beverages taken. Majority (59.7%) of the participants had good knowledge of the effects of alcohol consumption in pregnancy while less than half (33.9%) had good knowledge of the effect on the unborn baby. Previous drinking habits before pregnancy (3.48 ± 0.84) and unwanted pregnancy (3.17 ± 0.93) were the major perceived factor influencing their alcohol intake. Educational level was not significantly related to knowledge of alcohol effects on pregnancy. Conclusion: Regardless of the knowledge of the harmful effect of alcohol on the fetus and maternal health, a significant proportion of mothers continue to consume alcohol during pregnancy. Therefore, there is a need for widespread education of women of childbearing age focused on driving behavioural change with regards to alcohol intake in pregnancy.
Keywords: Alcohol consumption, factors, harmful effects, knowledge, pregnancy
|How to cite this article:|
Mbadugha CJ, Arinze JC, Odoh NC, Obiekwu AL, Omotola NJ, Okafor CJ. Prenatal Alcohol Intake and Knowledge of its Effect: A Survey of Pregnant Women Attending a General Hospital in South East, Nigeria. Niger J Med 2022;31:174-81
|How to cite this URL:|
Mbadugha CJ, Arinze JC, Odoh NC, Obiekwu AL, Omotola NJ, Okafor CJ. Prenatal Alcohol Intake and Knowledge of its Effect: A Survey of Pregnant Women Attending a General Hospital in South East, Nigeria. Niger J Med [serial online] 2022 [cited 2022 May 24];31:174-81. Available from: http://www.njmonline.org/text.asp?2022/31/2/174/344376
| Introduction|| |
Alcohol, a psychoactive substance with dependence-producing properties has been widely used in many countries for centuries. Across the globe, drinking alcoholic beverages is a common feature of social gatherings, religious ceremonies, and traditional medical practices. Nevertheless, the intake of alcohol carries a risk of adverse health and social consequences as a result of its intoxicating, toxic, and dependence-producing properties. Existing evidence shows that alcohol intake is the third largest risk factor for disease and disability across the globe with about 5.3% of all deaths attributed to alcohol. According to a world health report, Nigeria ranks 27th globally in alcohol drinking per liter per year and among the top 10 biggest beer-drinking countries in Africa.
Pregnancy is a unique period with series of changes taking place in the woman's organs and system as a result of the developing fetus. Hence tact and caution are paramount especially in relation to lifestyle habits and intake of substances to evade negative outcomes. Prenatal alcohol intake is the use of alcohol during gestation, including the time before the woman is aware of the pregnancy.
Indeed, alcohol use in pregnancy has been confirmed for many years to be associated with negative effects on the mother and the unborn child. No amount of alcohol is considered harmless during pregnant and there is no safe time or trimester in pregnancy to drink alcohol., It is estimated that about 9.8% of women consume alcohol during pregnancy globally and around 14.6 per 10, 000 affected by fetal alcohol syndrome. However, the effects on the fetus are higher with heavier or binge drinking. The developing fetus is exposed to the alcohol through the placenta and umbilical cord which the body metabolizes slowly when compared to an adult because of re-uptake of alcohol-containing amniotic fluid. The effect of alcohol use during pregnancy is evident immediately after birth, during early or later life particularly when it damages the central nervous system (CNS). The adverse effect for the mother and the developing fetus includes: spontaneous abortion, structural malformations, pre- and post-natal growth retardation, miscarriage, premature birth, stillbirth, decreased production of breast milk, CNS damage as well as neurodevelopmental abnormalities.,
The need to address prenatal alcohol consumption is pertinent considering the observed increasing trend of harmful alcohol consumption among women with rates varying between countries and within countries. Reports show that the rate of alcohol use in pregnancy ranged from 20% to 80% in Ireland, 40%–80% in Australia, New Zealand, and the United Kingdom. Recent studies conducted among sub-Saharan African women show a similar pattern of increasing rates of alcohol consumption from 2.8% to 87%. In Nigeria, a study conducted in the south-south region revealed that the prevalence of alcohol use during pregnancy is 59.28%. Similarly, a study in south-eastern Nigeria by Onwuka et al., found the prevalence of alcohol consumption in pregnancy to be 22.6%. This reflects alcohol use during pregnancy a common phenomenon both globally and locally. Although some countries may not have a written guideline, most countries recommend that alcohol should be abstained from during pregnancy.
Few studies, have documented alcohol use during pregnancy in some parts of Nigeria. However, data for maternal alcohol consumption in the eastern part of Nigeria is notably scarce and a study conducted by Onwuka et al. focused on the prevalence and predictors of alcohol consumption and found lack of awareness of the harmful effects of alcohol as one of the associated factors. To address this gap, the study aimed to assess prenatal alcohol intake, including the knowledge of its effects and factors influencing alcohol consumption among pregnant women in a General Hospital in the Eastern part of Nigeria. It is hoped that the findings of this study will provide insight on present data in a representative population and the need to intensify actions.
| Materials and Methods|| |
Design and study setting
A descriptive cross-sectional survey design was employed to determine the prevalence of alcohol consumption, knowledge of its effects and factors influencing alcohol consumption in pregnancy among pregnant women attending antenatal clinic in Poly General Hospital Asata, Enugu. Poly Clinic is a prominent General hospital owned by the Enugu state Government, which provides a wide range of health services including antenatal and postnatal care services to a large number of pregnant women. The hospital is centrally located in Enugu metropolis which makes it accessible to many residents and has specialist doctors and nurses who provide those services. It also provides comprehensive, free maternal and child health services.
Sample and sampling technique
The study population comprises pregnant women attending antenatal clinic in Poly General Hospital Asata, Enugu. The hospital has an average patient load of 148 pregnant women visiting the clinic per week. Considering that data collection will span four weeks, the study population of 592 (148 × 4) was used for the calculation of the sample. The minimum sample size was calculated using Taro Yamane formula which gave a sample size of 262 after considering 10% attrition rate possible from nonresponses and incomplete answers.
Simple random sampling was used to select pregnant women who presented at the hospital on antenatal clinic days which is usually on Mondays and Thursdays. During each visit, 33 pregnant women who met the inclusion criteria and have not been selected on previous visits were randomly selected from the list of registration for each day. On the list, the names are numbered and the numbers of respondents for the study were selected by writing the numbers on paper and picking 33 numbers on each day of the data collection. The clients whose numbers were picked were used for the data collection. The study spanned four weeks and the researchers went to the field eight (8) times on both clinic days (Mondays and Thursdays) in order to achieve the sample size.
Inclusion and exclusion criteria
Pregnant mothers who are 18 years and above, have had up to two antenatal visits, willing and available at the time of data collection were recruited for the study. Those with mental illness, teenage pregnancy and who did not meet these criteria were excluded from the current study.
Data collection was done using a researcher-constructed questionnaire. The questions were formulated in line with the reviewed literature and research objectives. The questionnaire contained a total of 34 items categorized into five sections which assessed the demographic data of the respondents, prevalence of alcohol consumption, knowledge of the effects of alcohol consumption on the mother, knowledge of the effect on the baby, and factors influencing intake of alcohol in pregnancy. The instrument was validated by 2 experts in Maternal and child health, and two other independent researchers whose inputs were applied in modifying the tool before using the instrument for field testing. To ensure the reliability of the instrument, the questionnaire was pretested through a pilot study by sharing 26 copies of the questionnaire to pregnant women attending Uwani Cottage Hospital who met the inclusion criteria as stated earlier. The inter-rater reliability test using the Cohen's kappa measure of agreement was used to test the consistency of the instrument and it yielded data between 0.742 and 1.000, thereby confirming that the instrument is reliable. Of the 262 questionnaires distributed, 248 copies were retrieved, making the response rate to be 94.6%.
Data collection procedure
The researchers administered the questionnaire to the pregnant women present during the antenatal days, which are usually on Mondays and Thursdays. Information related to the aim and significance of the study was provided to the respondents. Explanations on what represents alcohol use in pregnancy were provided which include intake of refined, unrefined alcohol/alcoholic beverages and the locally common brand “palm wine,” regardless of the purpose of consumption during any of their pregnancies. The questionnaire was distributed to the respondents by hand and they were given sufficient time to respond to the questions in order to avoid incomplete responses and non-retrieval of instruments which are common in cross sectional surveys. Respondents were encouraged to draw the attention of the researchers if there is a need for clarification on any item. The questionnaires were collected immediately and cross-checked to ensure they were properly filled.
The raw data were checked for completeness and consistency of response, sorted, categorized, and coded. Questionnaires not correctly filled were excluded from data analysis. Descriptive statistics – frequencies, percentages, means, and standard deviation were used to summarize the items of the questionnaire. Specifically, the responses to the knowledge questions were scored and the responses were graded based on scores. Those who scored above 50% were graded as having good knowledge while those who scored below 50% were graded as having poor knowledge. Furthermore, the mean and standard deviation were used for the 4-point scales items that assessed the influencing factors. Decision was made using a cut-off of 2.5; hence item with a mean (M) >2.5 was judged to be an influencing factor. Bivariate analysis such as Chi-square test of Independence was used to test the hypotheses at 5% level of significance. Hence, significant relationship existed if P < 0.05, (P < 0.05); otherwise, no significance. These statistics were done with the aid of the Statistical Package for the Social Science version 25 (International business machine (IBM) Corporation, Chicago, Illinois USA) and Microsoft Excel 2007.
The study protocol was approved by the ethics committee of the Enugu state ministry of health with a reference number MH/MSD/REC19/074. Furthermore, administrative permit was gotten from the medical director and Nursing Officer in charge of antenatal clinic. Informed consent was obtained from the respondents, with a promise to keep their information confidential and anonymous throughout the research process.
| Results|| |
The age distribution of the respondents ranged from 18 to 41 with a mean and standard deviation of 27.25 ± 5.12. Majority of the women were married 231 (93.1%), had tertiary 132 (53.2%), and secondary education 100 (40.3%). One-third 83 (33.5%) of the mothers were in their first pregnancy and a little above average 129 (52.0%) were between 28 and 42 weeks' gestational age [Table 1].
|Table 1: Demographic and pregnancy related characteristics of the women (n=248)|
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As shown in [Table 2], the prevalence of alcohol during pregnancy in the present study was 40.3%. Among the respondents who indicated intake of alcohol during pregnancy, the commonest alcohol consumed were majorly beer 48 (48.8%) and palm wine 48 (48.8%), three quarter of the respondents took between 1 and 2 bottles 75 (75.0%) per day. On the frequency of alcohol intake, 58 (58.0%) of respondents reported taking alcohol occasionally.
Findings from [Table 3] revealed most (80.2%) of the women knew that alcohol intake has harmful effects on pregnant woman. The known effect was mainly that of spontaneous abortion 172 (69.4%). Knowledge of preterm birth 121 (48.8%), high blood pressure 113 (45.6%), and diabetes in pregnancy 102 (41.1%) were below average while knowledge of other effects was quite lesser. Their source of knowledge was majorly 138 (55.6%) through health workers. In general, majority 148 (59.7%) had good knowledge of the effects of alcohol consumption in pregnancy.
As shown in [Table 4], greater proportion 183 (73.8%) of the women knew that alcohol intake has harmful effect on the unborn child. The known effects were majorly that of reduced mental ability of the child 137 (55.2%), the child being very small 137 (55.2%), and looking abnormal 127 (51.2%). Knowledge of other effects was quite lesser. Source of knowledge was mainly from health workers 124 (50.0%). In general, most of the respondents 84 (33.9%) had poor knowledge of the effects.
|Table 4: Knowledge of effects of alcohol consumption on the unborn (n=248)|
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The results in [Table 5] shows previous drinking habit before pregnancy (3.48 ± 0.84) as the primary perceived factor influencing alcohol consumption during pregnancy. Unwanted pregnancy (3.17 ± 0.93), unusual pregnancy craving (3.16 ± 0.94), alcohol use by partner (3.03 ± 1.05), and influence of friends (3.00 ± 0.92) also contributed largely as influencing factors. Others factors were to reduce the size of the baby (2.88 ± 1.01) and to relieve depression (2.62 ± 0.96).
[Table 6] presents the result of the relationship between educational level and knowledge of the effect of alcohol consumption in pregnancy and on the unborn. Educational level is not significantly related to both the knowledge of the effect on pregnancy (P = 0.065) and the knowledge of the effect on the unborn (P = 0.288). Hence, educational level is not significantly associated with higher knowledge in both.
|Table 6: Relationship between Educational level and Knowledge of the Effects of Alcohol Consumption in Pregnancy and on the Unborn Child|
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Findings in [Table 7] show that occupation is significantly related to the knowledge of the effect on pregnancy (P = 0.023) but not with the effect on the unborn (P = 0.093). For that of effect on pregnancy, the public servants were associated with higher knowledge compared to other occupational groups trader/businesswomen (59.1%), homemaker/farmer (50.0%), public servant (75.8%), and student (55.2%).
|Table 7: Relationship between Occupation and Knowledge of the Effects of Alcohol Consumption in Pregnancy and on the Unborn Child|
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| Discussion|| |
The present study revealed a prevalence of alcohol consumption during pregnancy to be 100 (40.3%) The prevalence in our study is favorably compared with that documented by Da Pilma Lekettey et al., whose findings showed a prevalence of 48% among pregnant women in Accra, Ghana. This study finding is much higher when compared to the overall summary estimate (20.83%) of the prevalence of alcohol consumption during pregnancy in sub-Saharan Africa as reported in a systematic review and a study conducted in a tertiary hospital south east Nigeria which reported a prevalence of 22.6%. Also Usifo et al., reported that more than half 385 (64.2%) of the pregnant women in Edo state, Nigeria, have taken alcohol during pregnancy, 216 (36%) took alcohol before pregnancy while 176 (29.3%) during present pregnancy. Contrary to our finding a lower prevalence (15.1%) was reported in Tanzania and some developed countries such as Canada and Sweden with a prevalence of 12% and 10.8% respectively.,, Furthermore, a high prevalence (59.28%) compared to our findings was reported in a research conducted at a tertiary hospital in Port-Harcourt, South-South Nigeria. The varied prevalence rate identified in studies may not only be related to the maternal drinking behaviour but can also stem from environmental, policy, genetic, religious differences, and cultural norms. Possible explanation for the relative high rate of alcohol intake in this study may be due to the fact that most pregnancies are unplanned and also the common belief that consumption of small quantity of alcoholic drinks and beverages is safe.
Meanwhile, beer (48%) and palm wine (48%) were identified as the most common alcoholic beverage consumed by respondents in this study. The authors speculate that the findings may not be different if accessed among other segments of the Nigerian population. Palm wine being one of the commonest alcohol could possibly be due to it being locally tapped and processed in Nigeria. Hence, it is very accessible and affordable to many. Also, beer could be attributed to its availability in every grocery and bar, and is reasonably priced. Similarly a study by Onwuka et al., in 2015 conducted in South East Nigeria identified beer as the most common brand of alcohol consumed which validates our study finding.
Majority of the women 199 (80.2%) demonstrated knowledge of the harmful effect of alcohol on a pregnant woman. Spontaneous abortion (69.4%) followed by preterm birth (48.8%) were the commonest effect identified by the respondents. Knowledge revealed may be connected to the health teachings that the pregnant women had received in the course of their antenatal visits. Our study findings are in line with that of Da Pilma Lekettey et al. which indicated that majority of the respondents knew that alcohol use during pregnancy has harmful effects on pregnancy with spontaneous abortion being the most reported effect. However, unlike our study findings, Peadon, et al. reported a poor knowledge of the effects of prenatal alcohol intake with premature birth, stillbirth and miscarriage stated by 8.7%, 0.3%, and 1.5% of respondents respectively.
Although a significant proportion of the respondents indicated knowledge of the harmful effect of alcohol intake during pregnancy on the unborn baby; their overall knowledge of the possible effects on the baby was poor. The latter finding may be associated with lack of awareness of fetal alcohol syndrome, a disorder common among babies exposed to alcohol in utero, characterized by abnormal facial features, growth and mental retardation. According to a study among Lebanese women, they showed a high level of knowledge of harmful effect of alcohol use during pregnancy on the child, although the safety of small amount of alcohol was queried. Furthermore, Peadon et al. in an Australian survey among pregnant women reported that majority had heard about effects of alcohol on the fetus while only 55.5% had heard of fetal alcohol syndrome. On the contrary, Onwuka et al., reported that about one-third (35.5%) of their respondents were aware that alcohol is harmful to the fetus which is comparably low in relation to our finding (73.8%). In the same vein, a report from Edo State, Nigeria, revealed that a little over half of pregnant mothers (55.7%) were unaware of the detrimental effect of alcohol, and only a few 22 (3.6%) knew about fetal alcohol syndrome. Health workers posed the major source of information of the possible effects of alcohol on pregnancy. Hence, this suggests the need to adopt other sources such as media and community campaign to sensitize the public on the possible dangers of alcohol during pregnancy.
Previous drinking habit before pregnancy was seen as the primary perceived factor influencing alcohol consumption in pregnancy in the current study. Alcohol consumption is intrinsic in most cultures in southern Nigeria and its an integral component of most social or religious activities, festivals and celebrations. Alcohol is believed to have some addictive properties which makes it difficult for some individuals including pregnant women to quit drinking and this may be implicated in the present finding. Other influencing factors identified in this study were unwanted pregnancy, unusual pregnancy craving, alcohol use by partners and influence of friends. This study result is similar to studies conducted in Tanzania and Nigeria which revealed pre-pregnancy alcohol use and influence of relatives as some of the predictive factors for alcohol consumption in pregnancy., A pooled estimate of meta-analysis and systematic review of studies done in Sub Saharan Africa identified that partners alcohol use, knowledge of its harmful effects and unplanned pregnancy were statistically significant factors with alcohol consumption during pregnancy. In addition, Da Pilma Lekettey, in a study carried out in James town Accra, Ghana reported that most of the pregnant women who currently consume alcoholic beverage had it from friends, which also agrees with one of the factors implicated in this study. Unlike our study findings, the major reason given by pregnant women in Delta, Nigeria were to prevent spitting, nausea and vomiting and also to make their baby small for delivery. Although the latter was also identified in our study as a factor but was not majorly implicated. Furthermore, Desmond et al. in their study attributed alcohol drinking during pregnancy to social influences like poverty and homelessness, which contradicts the findings of present study.
No significant association was found between educational level and knowledge of harmful effect of alcohol on pregnancy (P = 0.065) and the fetus (P = 0.288). Suffice to say that educational exposure of women does not culminate to their being informed of risks associated with alcohol intake during pregnancy. This may be attributed to existing general and common knowledge of hazardous effect of alcohol on health and its ability to cause problem in pregnancy. Several studies have tested relationship between level of education and knowledge of effects of alcohol in pregnancy. Ordinioha and Brisibe reported similar finding in their study which revealed that no significant relationship exists between educational status (P = 0.15) and knowledge of the effects of alcohol consumption during pregnancy. However, the present study findings are in disagreement with Peadon et al., and Maalouf et al., which found that women with higher education levels were more likely to know the effects of alcohol consumption in pregnancy.
The current study also revealed that occupation was significantly related to the knowledge of the effect on pregnancy (P = 0.023) but not with the effect on the fetus (P = 0.093). The public servants were associated with higher knowledge of effect on pregnant mothers compared to other occupational groups. There is no study in line or in contrast to this finding yet. Compared to other category of workers, it is speculated that public servants have greater access to public information through the media (both print and online), interactions in the work place, workshop and conferences where issues with maternal alcohol use may be discussed. Hence, the present finding.
Strengths and limitations of the study
The study has several strengths such as high response rate (94.6%), heterogeneous sample of pregnant women at different gestational age and parity; and ability of this study to provide information on possible factors that contribute to alcohol use in pregnancy. Nonetheless, the study is limited by a number of factors, first, the previous drinking habit was not elicited from the respondents to allow the authors identify those who quit alcohol during pregnancy and nondrinkers even prior to conception. In addition, the study was delimited to a General Hospital in South East, Nigeria. Hence, may influence the external validity of the prevalence rate due to diverse sociocultural characteristics of Nigerians. Finally, the finding is prone to social desirability and recall bias because alcohol consumption was self-reported with high likelihood that the magnitude of alcohol consumption will be underestimated as the respondents may not provide accurate information concerning their alcohol intake.
| Conclusion|| |
Regardless of the considerable knowledge of the harmful effect of alcohol on the fetus and maternal health, a significant proportion of mothers continue to consume alcohol during pregnancy especially the locally brewed palm wine and beer. Previous drinking habits and alcohol use by partners were some of the implicating factors identified. Evidence has shown that limiting alcohol intake during pregnancy is modifiable risk factor for poor pregnancy outcome. Insight from these findings suggest the need for health care worker to bear in mind these factors that influence alcohol intake during pregnancy while providing prenatal education and counseling to mothers. Also, concerted public health campaigns, early literacy programs educating every woman of child bearing age including their partners on the dangers inherent in alcohol consumption in pregnancy is paramount to reduce its incidence and resultant consequences on the mother and baby. Furthermore, pregnant women indulging in alcohol intake should be identified early through antenatal alcohol screening with appropriate control and treatment measures instituted promptly to curb any possible sequelae.
Financial support and sponsorship
Conflicts of interest
There are no conflicts of interest.
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[Table 1], [Table 2], [Table 3], [Table 4], [Table 5], [Table 6], [Table 7]