Anemia is a condition of lack of hemoglobin in the blood that can have a negative impact on health, especially in women of childbearing age (WUS) in the age range of 20-29 years. On the other hand, obesity is also a global health problem that can affect hemoglobin levels through chronic inflammation. Although some studies have shown a link between body mass index (BMI) and hemoglobin levels, the results still vary. This study aims to evaluate the relationship between obesity based on BMI and hemoglobin levels in WUS aged 20-29 years in Medan City. The type of study was descriptive analytical with a cross-sectional research design. The sample used in this study was Women of Childbearing Age (WUS) in the age range of 20-29 years who were obese in Medan Deli District with a total of 72 respoden. This study was carried out by measuring weight, height and hemoglobin respoden levels. The measurement results were analyzed by univariate and bivariate tests using the chi square test. The majority of women of childbearing age in the age range of 20-29 years were found to be in the category of Level I Obesity, Low Hemoglobin Levels, and the difference between Grade II Obesity and Low Hemoglobin Levels with P Value = 0.003 at a 95% confidence level and an odds ratio (OR) value of < 0.202. There is a significant relationship between Level II Obesity and low Hemoglobin Levels.
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