Case-control study of risk factors for recurrent low hemoglobin level among primary and middle school students
10.19428/j.cnki.sjpm.2020.18990
- VernacularTitle:中小学生血红蛋白水平持续性低下危险因素病例对照研究
- Author:
Dan-dan HE
1
;
Xiao-sa WEN
;
Hong-mei TANG
;
Di-di CHEN
;
Xiao-li XU
;
Hua CHENG
Author Information
1. Minhang District Center for Disease Control and Prevention, Shanghai 201101, China
- Publication Type:Research Article
- Keywords:
hemoglobin;
continuous anemia;
matched case-control study
- From:
Shanghai Journal of Preventive Medicine
2020;32(8):675-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the risk factors of recurrent low hemoglobin(RLH) level among students from 6 to 13 years old, and to formulate strategies and policies in this regard. Methods Surveillance on hemoglobin concentration was conducted among 71 742 students aged from 6 to 13y between 2013-2014 based on the annual physical examination for primary and middle school in Minhang District.Of those students, 670 were diagnosed with low hemoglobin level according to WHO criteria.A 1 ︰ 1 matched case-control study was conducted based on gender, age and school type.Questionnaire surveys for data collection were analyzed using Cox′s proportional hazards regression. Results Factors as pregnancy anemia(OR=2.32, 95%CI:1.49-3.63), non-pregnancy anemia(OR=4.65, 95%CI:1.22-17.69), maternal anemia(OR=2.51, 95%CI:1.50-4.21), drinking strong tea(OR=2.56, 95%CI:1.27-5.13) and dietary bias(OR=1.94, 95%CI:1.45-2.59) were risk factors of recurrent low hemoglobin level.Chewing pencils(OR=1.80, 95%CI:1.25-2.59) or toys(OR=1.79, 95%CI:1.10-2.86) and wasting(OR=3.37, 95%CI:1.11-10.21)might be the risk factors. Conclusion The risk factors of recurrent low hemoglobin level among students aged from 6 to 13 years are related to maternal anemia status and their dietary habits.We should strengthen education for women of child-bearing age, and help to develop healthy eating practices for their babies.Emaciated students should be focused on in this regard.
