Association between menarche and iron deficiency in non-anemic young womenReport as inadecuate




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Background

The prevalence of iron deficiency ID among non-pregnant, reproductive-age US women significantly exceeds rates among males. In clinical practice ID screening relies on hemoglobin, a late-stage indicator of ID. As a single, low-cost laboratory test to diagnose ID before anemia develops is lacking, the study objective was to improve ID screening by identifying risk factors among non-anemic, iron-deficient reproductive age women.

Methods

Cross-sectional data were from the National Health and Nutrition Examination Survey NHANES 2003–2010. Hemoglobin identified non-anemic women. ID was defined using the body iron formula, requiring ferritin and transferrin receptor values. Logistic regression assessed the association of sociodemographic, behavioral, and reproductive risk factors in an anemia-based conceptual framework with non-anemic reproductive age women 12–49 years with ID, as well as subsets of younger 12–21 years and older 22–49 years women, recognizing that risks may differ by age.

Results

Among 6216 women, 494 had ID prevalence was 8.0%, 95% CI 7.3%, 8.6%. Among non-anemic younger women, 250 8.7%, 95% CI 7.7%, 9.8% had ID, compared to 244 7.3%, 95% CI 6.4%, 8.2% older women. Among younger women, menstruation for over 3 years was the only variable significantly associated with non-anemic ID risk ratio 3.18, 95% CI 2.03, 4.96. No other significant risk factors were identified.

Conclusion

Menstrual years was the only risk factor significantly associated with ID among non-anemic younger women. The negative results suggest ID risk factors among non-anemic women may need to be considered separately from those associated with ID anemia.



Author: Deepa L. Sekhar , Laura E. Murray-Kolb, Allen R. Kunselman, Carol S. Weisman, Ian M. Paul

Source: http://plos.srce.hr/



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