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Original Article | Open Access | Am. J. Pure Appl. Sci., 2019; 2(1), 1-7. | doi: 10.34104/ajpab.0200107

Prevalence of Anaemia among Pregnant Women in a Rural Area of Bangladesh: Impact of Socio-economic Factors, Food Intake and Micronutrient Supplementation

Mohammad Abul Bashar* Mail Img ,
AKM Rezaul Haque ,
Rahnuma Rahman

Abstract

Anaemia during pregnancy is a major health problem throughout the world. The prevalence of anaemia in pregnancy is 41.8% globally and 46% in Bangladesh. It affects both the mother and the baby simultaneously. Women often become anaemic during pregnancy because the demand for iron is increased due to the physiological need for pregnancy. This cross-sectional study was carried out in the Savar Gonoshasthaya Kendra project area in the Dhaka district. Ninety-Five pregnant women of different gestational ages were selected purposively. Haemoglobin level was estimated by cyanomeath haemoglobin method in the laboratory of Gonoshasthaya Samaj Vittik Medical College Hospital, Savar. Among 95 pregnant women, 41.1% was in the 20-24 years age group. The mean age of the respondents was 23.74 years. In terms of socio-economic status, 54.7% of the respondents came from a lower-middle-class family. 7.4% of the respondents had no formal education, 54.7% had primary level education and only 6.3% had higher education. Maximum of the respondents (88.4%) were housewife. This study revealed that the prevalence of anaemia among pregnant women was 51.6%. Among 51.6 % of the anaemic respondents, 23.2% were mildly anaemic, 26.3% were moderately anaemic and 2.1% were severely anaemic.

INTRODUCTION AND BACKGROUND

Anaemia during pregnancy is a significant health problem in Bangladesh as well as in the world. Worldwide, the prevalence of anaemia during pregnancy has been estimated at 41.8% (McLean et al., 2009). According to WHO, the prevalence of anaemia among pregnant women is 56% in a developing country and 18% in a developed country (BBS, 2013), in Bangladesh, it is 28% (Poggi, 2007). Another study reported, 11.11% of pregnant women had anemia in their first trimester, 39.39% in 2nd trimester and 14.39% were anemic in their third trimester (Lindström et al., 2011). During pregnancy, it affects both mother and baby. It causes preterm delivery, low birth weight of the newborn, poor neonatal health, higher maternal morbidity and mortality and increases the risk of postpartum haemorrhage (Sultana et al., 2019). It may cause pregnancy-induced hypertension, placenta previa and cardiac failure (Allen et al., 2019). Women often become anaemic during pregnancy because the demand for iron and other nutrients is increased due to physiological burden of pregnancy (Zavaleta et al., 2000; Shazeed-Ul-Karim, 2019). 

All pregnant women are at risk of developing anaemia. The normal physiological increase in plasma volume causes haemodilution in a pregnant woman. In pregnancy, plasma volume increases to a dis-proportionate degree with an increasing number of red blood cells, resulting in a lowering of the haemoglobin level. Therefore, mild anaemia in pregnancy is considered normal (Habib et al., 2019). 

The risk of developing anaemia increases by closely spaced multiple pregnancies, twin pregnancy, heavy pre-pregnancy menstrual flow and micronutrient deficiency. Micronutrient deficiency anaemia occurs in pregnancy due to deficiency of iron, folic acid and vitamin B12. The most common is iron deficiency anaemia. This occurs mostly when the body does not have enough iron to produce haemoglobin. This is often known as nutritional anaemia. There is a greater risk of developing nutritional anaemia if the diet of pregnant women does not contain enough meat, poultry, dairy products and eggs (Nahid et al., 2019). 

Nutritional anemia is widely prevalent in South Asia. According to the UNICEF published regional report, the prevalence of nutritional anemia in Bangladesh is highest among the South Asian countries which are 46% (UNICEF, 2004). Untreated anaemia in pregnancy increases risk of having low birth weight baby, anaemic baby and depression in post-partum period. Another study found 30% anaemia among pregnant women in Bangladesh (Ahmed et al., 2018). 

MATERIALS AND METHODS

This cross-sectional study was conducted among the pregnant women in Gonoshasthaya Kendra (GK) Project area of Savar upazilla in Dhaka district in Bangladesh. Data were collected during the period of February 2015 to March 2015. Total ninety five pregnant women were selected purposively. Data were collected using a semi-structured questionnaire. The respondents were interviewed face to face for socio-demographic characteristics, daily food intake and intake of micronutrient (iron and folic acid). 

Socio-economic statuses of the respondents were classified as Ultra Poor, Poor, Lower Middle Class, Middle Class, Upper Middle Class and Rich according to the guideline of GK, a local NGO in Bangladesh. The respondents who have no regular income, mostly engaged in begging were classified as Ultra Poor. The respondents, who have monthly income less than 3,000.00 but dont beg, were classified as Poor. The respondents who have monthly income 3,000.00-10,000.00 were lower Middle Class, those who have monthly income 10,000-25,000 were Middle Class, those who have monthly income 25,000.00-50,000.00 were Upper Middle Class and who have monthly income more than 50,000.00 were classified as Rich. 

Blood was drawn with all aseptic precaution and haemoglobin level was estimated in the laboratory of Gonoshasthaya Samaj Vittik Medical College Hospital by cyanomeath haemoglobin method using a colorimeter. According to WHO, anaemia is defined as a haemoglobin concentration below 11 gm/dl and is categorized as mild, moderate and severe (Sharma and Shankar, 2010). Haemoglobin level between 10-10.9 gm/dl is defined as mild anaemia, 7-9.9 gm/dl is moderate anaemia and below 7 gm/dl is severe anaemia. Data analysis was performed by using SPSS version 16.0.

RESULTS AND DISCUSSION

Anemia is low hemoglobin (Hb) concentration, red-cell count, or packed-cell volume, with subsequent impairment in meeting the oxygen supply to demands of tissues. The mean age of respondents was 23.74 year. Majority of the respondents (41.1%) were in 20-24 years age group. Among the respondents, 16.8% were in the early reproductive age group (15-19 years). In terms of socio-economic status, 54% of pregnant women belonged to lower middle class family. While 54.7% of the respondents completed primary education and 7.4% had no formal institutional education.

Table 1: Socio-demographic characteristics of the respondents.

Among them, 43.2% were non anaemic and 16.8% were anaemic. Out of 40% of the respondents who did not take any micronutrient, majority (34.7%) was anaemic and very few (5.3%) were non-anaemic. This result revealed that micronutrient intake had a significant influence on anaemia in pregnancy. This is also statistically proven (p=0.000). Even in many developed countries, the iron requirement for pregnant women cannot be met from dietary source (Bendich and Zilberboim, 2009). 

Consequently, daily supplements of iron and folic acid have been universally recommended (Stoltzfus and Dreyfus, 1998). A study conducted by C Menendez et al found that iron supplementation led to a significant reduction of anaemia in pregnancy (Menendez et al., 1994). Pregnant women are frequently advised to consume more food than any other times. It is assumed that more food has a positive influence on mother and foetus during pregnancy (Rahman et al., 2019). This study found that 58.9% of respondents were taking daily 4 times or more meal. Among them, maximum (36.8%) were non anaemic, in contrast, among the 41.1% respondents, who were taking food daily 3 times (normal practice) or less than that, 29.5% 

Fig 1: Micronutrient (Iron and Folic acid) intake by the respondents.

Fig 2: Anaemia status of the respondents.

Table 2: Bivariate analysis of anaemia


were anaemic and 11.6% were non anaemic. This result indicates a significant influence of daily food intake on anaemia (p=0.001). 

Fig 2 shows that 23.2% of the respondents were mildly anaemic, 26.3% were moderately anaemic and 2.1% were severely anaemic. However, 48.4% of the respondent had no anaemia. This study revealed that 51.6% of the respondents were anaemic and 48.4% had normal haemoglobin level. Among 51.6% of the anaemic respondents, 23.15% had mild anaemia, 26.31% had moderate anaemia and only 2.1% had severe anaemia (Fig 2). A report of UNICEF in 2004 showed that the prevalence of anaemia in pregnancy was 46% in Bangladesh (BBS, 2013). The finding of our study was just higher than UNICEFs observation. Another study conducted by Hyders et al (2004) found prevalence of anaemia to be 50% that is more close to the findings of this study. Bivariate analysis revealed that socio-economic status did not have a significant influence on anaemia in pregnancy (p=0.61). However, education, frequency of daily food intake and micronutrient intake had a notable influence on the status of anaemia (Mondol et al., 2019).

Table 2 illustrates bivariate analysis of anaemia with education level, socioeconomic status (SES), frequency of meal and intake of micronutrient. An analysis of educational level, 7.4% of the respondents had no formal education, of whom, 5.3% were anaemic and 2.1% were non-anaemic. This result revealed that anaemia was high in illiterate pregnant women which is statistically significant (p=0.01). 92.6% of respondents had formal institutional education, of whom, 46.3% was anaemic and 46.3% was non-anaemic. A study conducted by Balasubramanian et al (2016) found a significant relationship of educational status with anaemia in pregnancy. Analysis of socio-economic status revealed that maximum respondents from the different socio-economic class were non-anaemic. 12.6% of respondents were poor, of whom, 7.3% were non-anaemic and 5.3% were anaemic; 54.7% were lower middle class respondents, of whom, 23.1% were non-anaemic and 31.6% were anaemic; 24.2% were middle class respondents, of whom, 12.6% were non-anaemic and 11.6% were anaemic; 7.4% were upper class family, of whom, 4.2% were non-anaemic and 3.2% were anaemic and only 1 respondent came from a rich family who was non-anaemic. But these results had no statistical significance (p=0.61).

CONCLUSION

This cross-sectional study was conducted among ninety five pregnant women. The prevalence of anaemia found in this study was 51.6%. Of them, 26.3% was moderately anaemic and only 2.1% was severely anaemic. Among the respondents, 60% received micronutrients. Prevalence of anemia was low among them. A study conducted by Sharma et al (2003) in Delhi found that anaemia prevalence is less among pregnant women eating more meat but they found no effect of dietary habits on anaemia in pregnancy. Another study conducted by Al-Tel et al (2010) found the relationship of eating practices with anaemia. Similarly, those who have good socio-economic status and those who eat more food daily have less anaemia.

ACKNOWLEDGEMENT

We would like to express our sincere gratitude to the principal of Gonoshasthaya Samaj Vittik Medical College for providing laboratory support in this research work. We also give thanks to MBBS 16th batch students of this medical college for their active role in data collection.

CONFLICT OF INTEREST

The authors have no conflict of interest.

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Article Info:

Md. Ekhlas Uddin Dipu, Department of Biochemistry and Molecular Biology, Gono Bishwabidalay, Dhaka, Bangladesh.

Received

December 1, 2020

Accepted

December 31, 2020

Published

January 30, 2020

Article DOI: 10.34104/ajpab.0200107

Corresponding author

Mohammad Abul Bashar*

Department of Community Medicine, Gonoshasthaya Samaj Vittik Medical College, Savar, Dhaka-1344, Bangladesh.

Cite this article

Bashar MA, Haque AKMR, and Rahman R. (2020). Prevalence of anaemia among pregnant women in a rural area of Bangladesh: impact of socio-economic factors, food intake and micronutrient supplementation.  Am. J. Pure Appl. Sci., 2(1), 1-7. https://doi.org/10.34104/ajpab.0200107 

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