Factors in relation to repeated abortions among unmarried young people in Shanghai / 中华流行病学杂志

<p><b>OBJECTIVE</b>To study the factors related to repeated abortions among unmarried young people, and to standardize the services as informed choice counseling and post abortion, and to reduce the repeated abortion rate.</p><p><b>METHODS</b>A cross-sectional survey using anonymous questionnaire was conducted among unmarried young women who requested termination of early pregnancy in 10 hospitals in Shanghai.</p><p><b>RESULTS</b>2343 subjects responded to the questionnaires. Results showed that the repeated abortion rate was 38.5%, repeated abortion rate within 1 year was 23.5%, and the high risk factors of abortion accounted for 40.2% . Subjects who were older than 19, unemployed, with poor education background, cohabitating and boyfriends being elder were more likely to have repeated abortions (OR > 1). Subjects who did not change boyfriend or use no contraception were more likely to have repeated abortions 1 year after abortion (OR > 1).</p><p><b>CONCLUSION</b>No reliable contraception used after abortion seemed to be the main reason for repeated unwanted pregnancy. Being socially disadvantaged women such as unemployed or with poor education background, meanwhile cohabitating with boyfriends or boyfriends being elder etc. they should be viewed as the key population for intervention. Male involvement and reliable contraceptive methods use among young people should be emphasized as key steps for intervention. 1 year after abortion fell into the key period for intervention. Reinforcement on factors including: training for service providers to improve their skills, setting up standard technical process and monitoring systems to carry out the basic principle of 'Informed Choice', and widely launching post-coital contraception programs including emergency contraception, luteal phase contraception and menstrual induction should be stressed.</p>

Study on self-consciousness of children with learning disabilities and related factors / 生物医学与环境科学（英文）

<p><b>OBJECTIVE</b>To study the self-consciousness of children with learning disabilities (LD) and to identify related factors.</p><p><b>METHODS</b>Five hundred and sixty pupils graded from 1 to 6 in an elementary school were investigated. According to the pupil rating scale revised screening for learning disabilities (PRS), combined Raven's test (CRT) and achievement of main courses, 35 of 560 pupils were diagnosed as LD children. Thirty-five children were selected from the average children and 35 from advanced children in academic achievement equally matched in class, gender, and age with LD children as control groups. The three groups were tested by Piers-Harris children's self-concept scale. Basic information of each subject was collected by self-made questionnaire.</p><p><b>RESULTS</b>Compared with the average and advanced children, LD children got significantly lower scores in self-concept scale. Based on logistic regression analysis, 3 factors were identified, including family income per month, single child and delivery model.</p><p><b>CONCLUSION</b>The results suggest that self-consciousness of children with LD is lower than that of normal children.</p>

Application of factor analysis in the study of risk factors on human parvovirus B19 infection during pregnancy / 中华流行病学杂志

<p><b>OBJECTIVE</b>To explore the risk factors of human parvovirus B19 infection in pregnancy and to provide guidelines for its prevention and control strategy.</p><p><b>METHODS</b>Four hundred and eighty-six cases of gravida serum were detected for parvovirus B19 DNA by nested-polymerase chain reaction assay. Factors associated with parvovirus B19 infection in pregnancy were investigated and analyzed, using multiple logistic regression and factor analysis.</p><p><b>RESULTS</b>Multiple logistic regression analysis suggested that there were 16 agents associated with parvovirus B19 infection during pregnancy, which were dominated by 6 potential factors listed as follows: countryside and bad hygienic habit, mental factor, occupational exposure to hospital and environmental condition, health and illness, bad behavior and health education and blood type.</p><p><b>CONCLUSION</b>The prevention strategy of parvovirus B19 infection in pregnancy should include reasonable allocation of public health resources between city and countryside, and to promote health education and occupational health during pregnancy.</p>