Observational studyBMC pregnancy and childbirth2020
Prevalence of anemia and sociodemographic characteristics among pregnant and non-pregnant women in southwest China: a longitudinal observational study.
Observational study in BMC pregnancy and childbirth, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 1 of them a synthesis that pooled it.
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Who cites it
37 citing papers in PubMed, 1 synthesis or guideline pooled it.
- The Prevalence of Anemia among Pregnant Women in China: A Systematic Review and Meta-Analysis.Nutrients · 2024Pooled it
- Associations between maternal and child anemia and development outcomes: evidence from a large cross-sectional population-based study.BMC public health · 2026Article
- Prevalence, risk factors, and adverse maternal and fetal outcomes of anemia during pregnancy: a retrospective study in China, 2012-2020.BMC pregnancy and childbirth · 2026Article
- Prevalence and associated factors of anemia among women of childbearing age in the eastern region of Burkina Faso.Scientific reports · 2026Article
- Admission anemia and 90-day outcomes after supratentorial intracerebral hemorrhage: a township-level cohort study.European journal of medical research · 2025Article
- Anaemia prevalence and risk factors among nonpregnant and pregnant women of reproductive age in Ghana: an analysis of the Ghana demographic and health survey data.Tropical medicine and health · 2025Article
- Article
- A silent crisis: two decades of anaemia trends among women in the Eastern Mediterranean Region (2000-2019).Archives of medical science : AMS · 2025Article
- The Role of Digital Technology in Preventing Anemia Among Pregnant Women: A Scoping Review.International journal of telemedicine and applications · 2025Review
- Spatial variation and predictors of anemia among women of reproductive age in Mozambique, 2022/23: a multiscale geographically weighted regression.Frontiers in public health · 2025Article
- Prevalence and factors associated with anemia among pregnant women during the COVID-19 pandemic in East Lombok district, Indonesia.PloS one · 2025Observational
- Knowledge and attitudes on anemia and menstrual health among Malaysian female university students.Scientific reports · 2024Article
- Prevalence of anemia of varying severity, geographic variations, and association with metabolic factors among women of reproductive age in China: a nationwide, population-based study.Frontiers of medicine · 2024Article
- Factors associated with anemia among reproductive age women in Nigeria; evidenced by the Nigeria malaria indicators survey: spatial and multilevel model analysis.Contraception and reproductive medicine · 2024Article
- Variations in the Prevalence of Anemia of Varying Severity Among Urban Non-Pregnant Women - China, 2021.China CDC weekly · 2024Article
- Maternal anaemia during early pregnancy and the risk of neonatal outcomes: a prospective cohort study in Central China.BMJ paediatrics open · 2024Article
- Current research and evidence gaps on placental development in iron deficiency anemia.Open life sciences · 2024Review
- Persistence of a high prevalence of anemia in rural areas among pregnant women in Burkina Faso. A cross-sectional study.Journal of public health in Africa · 2023Article
- Prevalence and factors associated with anemia in women of reproductive age across low- and middle-income countries based on national data.Scientific reports · 2023Article
- Anemia burden in pregnancy and birth outcomes among women receiving antenatal care services from a secondary level hospital in South India: A record review.Journal of family medicine and primary care · 2023Article
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9 authors.
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Abstract
backgroundGlobally, the prevalence of anemia among women of reproductive age is about 29.4%, and anemia impacts about 40% of pregnant women and more than 20% of non-pregnant women. We conducted a longitudinal observational study of anemia in pregnant and non-pregnant women, and analyzed the association between the prevalence of anemia and sociodemographic characteristics of women in southwest China.
methodsThis study was a longitudinal observational study which involved 640,672 women aged 18-49 years from 129 counties in southwest China. Data were from databases of National Free Preconception Health Examination Project (NFPHEP) and electronic medical records of local hospitals. We adjusted the diagnostic thresholds of anemia for altitude. The prevalence of anemia was expressed in percentages and 95% confidence intervals (95% CI). The association between the prevalence of anemia and sociodemographic characteristics of pregnant and non-pregnant women were analyzed using univariate and multivariate logistic regression method, expressed in crude odds ratio (cOR), adjusted odds ratio (aOR) and 95%CI.
resultsOf the 640,672 participants, 121,254 women suffered from anemia, with the prevalence of 18.9% (95%CI: 18.8-19.0%). From 2014 to 2018, the prevalence of anemia declines from 23.0-16.4%.The prevalence was 21.6% in the first trimester, higher than women in non-pregnancy (17.4%) and women in the third trimester (10.5%). Results from the multivariable logistic regression showed that women aged 18-20 (aOR = 1.28) or over 35 years old (aOR = 1.07), being farmers (aOR = 1.42), being ethnic minorities (aOR: 1.19 ~ 1.73), during the first trimester (aOR = 1.32) were more likely to be anemic.
conclusionsAlthough the anemia prevalence of women of reproductive age has been decreasing in recent years, the prevalence of anemia is still high in pregnant and non-pregnant women in southwest China, especially during the first trimester. Women who were older or younger, being farmers, being ethnic minorities were at high risk of anemia. Anemia in women of reproductive age cannot be neglected.
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