title: [Influential factors of iron deficient anemia among infants aged 8 months based on a case-control study].
abstract: To study the status and influential factors of iron deficient anemia (IDA) among infants aged 8 months in Changsha City.  Methods: A case-control study was performed in this research. The case group including 105 8-month-old infants definitely diagnosed as IDA based on standardized blood test. Four-times numbers of age- and genger-matched infants without IDA were selected as a control group. Chi-square test and conditional logistic regression was used to analyze the influential factors for IDA.  Results: The incidence rate of IDA among infants aged 8 months in Changsha City was 14.7%. The risk factors were as follows: mother with anemia in late pregnancy (OR=3.540, 95% CI 1.898 to 6.601), mixed feeding within 6 months old (OR=1.682, 95% CI 1.099 to 2.574), artificial feeding within 6 months old (OR=4.162, 95% CI 1.343 to 12.896), complementary feeding before 6 months old (OR=1.423, 95% CI 1.022 to 1.982), complementary feeding at or after 7 months old (OR=4.415, 95% CI 2.150 to 9.064), recurrent respiratory tract infections within 8 months old (OR=2.878, 95% CI 1.224 to 6.764), and repeated diarrhea within 8 months old (OR=3.710, 95% CI 1.533 to 8.980).  Conclusion: There is certain incidence rate of IDA among infants aged 8 months in Changsha City. To prevent the IDA among infants, we should treat mothers' anemia during pregnancy, advocate scientific feeding, encourage complete breastfeeding until 6 months old, add complementary food timely and reasonably, treat infants suffering from respiratory or digestive diseases actively.
authors.affiliation: Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha 410078, China.
authors.forename: Xiao
authors.initials: X
authors.lastname: Gao
authors.affiliation: Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha 410078, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Yan
authors.affiliation: Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha 410078, China.
authors.forename: Shiting
authors.initials: S
authors.lastname: Xiang
authors.affiliation: Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha 410078, China.
authors.forename: Hongyan
authors.initials: H
authors.lastname: Li
authors.affiliation: Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha 410078, China.
authors.forename: Shan
authors.initials: S
authors.lastname: Tan
authors.affiliation: Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha 410078, China.
authors.forename: Qiong
authors.initials: Q
authors.lastname: He
authors.affiliation: Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha 410078, China.
authors.forename: Tingting
authors.initials: T
authors.lastname: Sha
authors.affiliation: Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha 410078, China.
authors.forename: Shiping
authors.initials: S
authors.lastname: Liu
authors.affiliation: Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha 410078, China.
authors.forename: Guangyu
authors.initials: G
authors.lastname: Zeng
authors.affiliation: Kaifu District Health Bureau, Changsha 410008, China.
authors.forename: Qiang
authors.initials: Q
authors.lastname: Yan
mesh_terms: D000740:Anemia / Q000150:complications; D018798:Anemia, Iron-Deficiency / Q000453:epidemiology*; D016022:Case-Control Studies; D003968:Diarrhea, Infantile / Q000150:complications; D004032:Diet / Q000009:adverse effects*; D005247:Feeding Behavior / Q000502:physiology; D005260:Female; D006801:Humans; D015994:Incidence; D007223:Infant; D041943:Infant Formula / Q000009:adverse effects; D000068104:Infant Health / Q000706:statistics & numerical data; D007228:Infant Nutrition Disorders / Q000453:epidemiology*; D007227:Infant Nutritional Physiological Phenomena / Q000502:physiology* / Q000592:standards; D016015:Logistic Models; D008297:Male; D000068097:Maternal Health; D009035:Mothers; D011247:Pregnancy; D011248:Pregnancy Complications; D012008:Recurrence; D012141:Respiratory Tract Infections / Q000150:complications; D012307:Risk Factors