Regional inequalities in concurrent anaemia and overweight/obesity among women in Ghana: a nationally representative analysis of the 2022 Ghana Demographic and Health Survey
This nationally representative analysis of the 2022 Ghana Demographic and Health Survey reveals that concurrent anaemia and overweight/obesity affects approximately 18% of non-pregnant Ghanaian women aged 20–49, with significant regional disparities that closely mirror the distribution of excess adiposity rather than anaemia alone, and are strongly associated with older age and higher socioeconomic status.
Original paper licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). This is an AI-generated explanation of the paper below. It is not written or endorsed by the authors. For technical accuracy, refer to the original paper. Read full disclaimer
In many parts of the world, the story of nutrition is no longer just about a lack of food. For decades, public health efforts focused on hunger and vitamin deficiencies. But as societies develop, a new and complex reality has emerged: the same person can suffer from a shortage of essential nutrients while simultaneously carrying too much body weight. This phenomenon, often called the "double burden" of malnutrition, happens when a woman has anemia—a condition where the blood lacks enough healthy red cells to carry oxygen—alongside overweight or obesity. These two problems are not opposites that cancel each other out; they can exist together in the same body, creating a unique health challenge that is harder to treat than either condition alone. Understanding where and why this happens is crucial for doctors and policymakers, because a solution that fixes hunger might accidentally worsen weight issues, and vice versa.
A recent study in Ghana has mapped out exactly how this double burden is distributed across the country's sixteen regions. Researchers looked at data from over 5,600 non-pregnant women between the ages of 20 and 49, using measurements taken during the 2022 Ghana Demographic and Health Survey. They wanted to see not just how many women had anemia or were overweight, but how many were dealing with both at the same time. The results reveal a striking picture: about one in six women in this age group carries both conditions simultaneously. While the national average is significant, the real story lies in the geography. The burden is not spread evenly; it clusters heavily in specific areas, creating a patchwork of risk that defies simple assumptions about poverty or location.
The study found that the pattern of this double burden follows the geography of excess weight much more closely than it follows the geography of anemia. In the southern parts of the country, particularly in the Western Region, Greater Accra, and the Central Region, the rates of women having both conditions are the highest. In the Western Region, for instance, nearly 27 percent of women have both anemia and overweight or obesity. In contrast, the northern regions, such as the North East, Upper East, and Upper West, have the lowest rates, with the North East showing a concurrent rate of just over 6 percent. This is a massive difference, with the highest-risk region having a burden more than four times greater than the lowest-risk region.
What makes this finding so important is how it contradicts what one might expect. Anemia, the condition of low blood iron, is actually most common in the northern regions, where rates are high. Overweight and obesity, on the other hand, are most common in the wealthier, more urbanized southern regions. If these two problems were perfectly linked, the places with the most anemia would also have the most double burden. Instead, the data shows that the double burden rises and falls with the rates of overweight and obesity. It is as if the widespread presence of anemia across the country provides a baseline, but the extra layer of risk comes from where people are gaining excess weight.
The researchers also looked at who is most likely to be affected. Age and wealth emerged as the strongest predictors. The likelihood of having both conditions increases steadily as women get older. A woman in her forties is twice as likely to have the double burden as a woman in her twenties. Similarly, wealth plays a major role. Women from the wealthiest households are nearly three times more likely to have both conditions than those from the poorest households. This challenges the old idea that malnutrition is only a problem for the poor. In Ghana's current stage of development, having more money seems to increase the risk of gaining excess weight, yet it does not fully protect against the persistent issue of anemia.
Surprisingly, the study found that what these women ate in the day before the survey did not clearly explain who had the double burden. Measures of dietary variety, such as eating from different food groups, or the consumption of sweet drinks and unhealthy foods, did not show a strong independent link to the condition after accounting for age and wealth. This suggests that the issue is not just about a single day's menu or a simple lack of food variety. The causes are likely deeper, involving long-term habits, the environment where people live, and biological factors that accumulate over years.
Even after the researchers adjusted for differences in age, wealth, and education across the regions, the geographic gaps remained. The Western Region still had the highest rates, and the North East still had the lowest. This tells us that simply moving people or changing their income levels might not be enough to fix the problem. There are local factors specific to each region—perhaps related to local food environments, access to healthcare, or other community characteristics—that drive these differences.
The study concludes that addressing this health crisis requires a new approach. Instead of treating anemia and obesity as separate problems that need separate solutions, health programs in Ghana need to be designed to tackle both at once. This means that when a woman visits a clinic, health workers should check for both low blood iron and excess weight, and offer advice that improves nutrition without causing further weight gain. Because the problem is so concentrated in specific areas, these efforts need to be tailored to the local reality of each region, rather than applying a single national rule. The map of Ghana's health is changing, and the path forward requires a strategy that is as nuanced and geographically aware as the problem itself.
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