Background: Cesarean delivery may reduce placental-fetal transfusion and thus increase the risk of early childhood anemia compared with vaginal delivery, but this notion has not been carefully studied in longitudinal cohorts.
Objective: The aim was to assess the association of cesarean delivery with anemia in infants and children in 2 longitudinal Chinese birth cohorts from different socioeconomic settings.
Design: Cohort 1 was recruited from 5 counties in northeastern China and cohort 2 from 21 counties or cities in southeastern China.
Zhongguo Yi Xue Ke Xue Yuan Xue Bao
August 2014
Objective: To establish the method of enzyme-linked immunosorbent assay (ELISA) for measuring human IgM autoantibody to folate receptor.
Methods: Folate receptor was extracted and purified from the healthy woman placenta. The protein was coated on 96-well plates with a concentration of 5 ng/Μl.
Chin Med J (Engl)
December 2011
Objective: In recent years, the incidence of allergic diseases in China is increasing. With serious influence on the patients' quality of life and even life-threatening, now allergic diseases have become an important public health problem in our country. This survey aimed to obtain a general epidemic outline of children's major allergic diseases, i.
View Article and Find Full Text PDFObjective: To analyze the prevalence of asthma and asthma related symptoms among children aged 0-14 years in three Chinese cities and to obtain a crude estimation of the trend of childhood asthma prevalence in China.
Methods: A cross-sectional, population-based survey of prevalence of asthma was conducted in children aged from 0 to 14 years in 3 major cities of China (Beijing, Chongqing, and Guangzhou) with different geographic locations. All the subjects were randomly selected by a multi-stage sampling method.
Zhonghua Liu Xing Bing Xue Za Zhi
December 2010
Objective: To analyze the influencing factors for stunting and underweight among children aged 3 - 6 years in 15 counties of Jiangsu and Zhejiang provinces so as to provide reference for enhancing growth level among preschool children.
Methods: Data was from the 183 295 records of Children Follow-up Study Project carried out by the Institute of Reproductive and Child Heath of Peking University and the records of related perinatal health care surveillance system in rural areas of 15 counties/cities of Jiangsu and Zhejiang provinces. WHO-NCHS standard was used to assess the childhood physical level of growth.
Zhonghua Liu Xing Bing Xue Za Zhi
July 2010
Objective: To study the current status of spontaneous abortion of primigravid women in Jiaxing areas of Zhejiang province of China.
Methods: We analyzed the data from both perinatal healthcare surveillance program and spontaneous abortion, collected in Jiaxing areas by the Institute of Reproductive and Child Health, Peking University. The study population consisted of 14 769 primigravid women (excluding induced abortion, ectopic pregnancy and molar pregnancy as outcomes) attempting to become pregnant who registered between 1993 and 1995.
Zhonghua Liu Xing Bing Xue Za Zhi
April 2010
Objective: Our purpose was to evaluate the association between hemoglobin concentration (Hb) and cognitive ability of children at 4 - 6 years of age in 21 counties/cities in China.
Methods: A total number of 7331 children born during 1993 - 1996 were randomly selected from 21 counties or cities in Hebei, Jiangsu and Zhejiang provinces. Hb concentration of children were measured followed by three tests including full-scale, verbal and performance intelligence quotient (IQ) test performed by Chinese-Wechsler Intelligence Scale for Children, one year later.
Zhonghua Yu Fang Yi Xue Za Zhi
January 2010
Zhonghua Liu Xing Bing Xue Za Zhi
January 2010
Zhonghua Liu Xing Bing Xue Za Zhi
December 2009
Objective: To understand the distribution of birth weight among premature infants and the associated social factors.
Methods: The study population consisted of 97 537 women who delivered singleton live birth of 20 to 41 gestational weeks in 4 counties/cities, Jiangsu and Zhejiang provinces, China from 1995 to 2000. Chi-square test was employed to test the difference of proportions between respective groups.
Zhonghua Liu Xing Bing Xue Za Zhi
September 2009
Zhonghua Liu Xing Bing Xue Za Zhi
July 2009
Zhonghua Yu Fang Yi Xue Za Zhi
April 2009
Objective: To examine the relationship between prepregnancy body mass index (BMI) and the risk of pregnancy-induced hypertension (PIH) in Chinese population.
Methods: Data were collected in 6 counties/cities covered by Perinatal Health Care Surveillance System which was part of the Sino-American cooperative project on neural tube defects prevention established in 1992. The study population consisted of 83 159 women who attended premarital or preconception medical physical examination and delivered single live births with at least 20 gestational weeks from 1995 to 2000 in Jiaxing area.
Zhonghua Liu Xing Bing Xue Za Zhi
July 2008
Objective: To assess the relationship between pre-pregnancy body mass index (BMI), weight gain during pregnancy, and the risk of neonatal asphyxia.
Methods: Data was collected in 6 countiedeities covered by Peri-natal Health Care Surveillance System which was part of a Sino-American cooperative project on neural tube defects prevention established in 1992. The study population consisted of 83,030 women who attended premarital/preconception medical physical examination program and had delivered single live birth with at least 20 gestational weeks from 1995 to 2000 in Jiaxing area, Zhejiang province.
Zhonghua Liu Xing Bing Xue Za Zhi
April 2008
Objective: To examine the association between pregnancy-induced hypertension (PIH) and small-for-gestational-age babies (SGA) in a Chinese population.
Methods: Subjects were women who delivered a singleton baby (gestational weeks: equal to or greater than 28, and less than 42) in four cities or counties in Jiangsu and Zhejiang provinces, China, during the period of 1995 - 2000. A total number of 93 743 women were included.
Zhonghua Liu Xing Bing Xue Za Zhi
January 2008
Zhonghua Liu Xing Bing Xue Za Zhi
November 2007
Objective: To describe the secular trends and epidemiological characteristics of preterm birth among singletons in 10 counties (cities) of China during 1993-2005.
Methods: We analyzed data on 542 923 women (gestational age > or =28 weeks) collected through Perinatal Healthcare Surveillance System established by the Institute of Reproductive and Child Health, Peking University. Chi-square tests were employed to test the differences in prevalence of preterm birth among different groups.
Zhonghua Liu Xing Bing Xue Za Zhi
January 2007
Objective: To investigate the association between third trimester hemoglobin (Hb) concentrations and the risk of low birth weight and preterm delivery in a Chinese population.
Methods: Subjects were women who delivered in four cities/counties in Jiangsu and Zhejiang provinces, China, during the period of 1995 - 2000. Incidence of low birth weight and preterm delivery was calculated and compared among groups of women with different levels of Hb during the third trimester.
Zhonghua Liu Xing Bing Xue Za Zhi
December 2006
Objective: To understand the current status and its changing patterns of perinatal health care in some southern and northern areas of China from 1994 to 2000.
Methods: Data was collected in 13 counties/cities covered by Perinatal Health Care Surveillance System which was part of the Sino-American cooperative project on neural tube defects prevention, established in 1992. The study population consisted of 368 589 women who delivered single live births of at least 20 gestational weeks from 1994 through 2000.
Zhonghua Yu Fang Yi Xue Za Zhi
May 2006