Optimal gestational weight gain in Chinese pregnant women by Chinese-specific BMI categories: a multicentre prospective cohort study.

Objective: To establish optimal gestational weight gain (GWG) in Chinese pregnant women by Chinese-specific BMI categories and compare the new recommendations with the Institute of Medicine (IOM) 2009 guidelines.

Design: Multicentre, prospective cohort study. Unconditional logistic regression analysis was used to evaluate the OR, 95 % CI and the predicted probabilities of adverse pregnancy outcomes.

[Association of pre-pregnancy body weight, gestational weight gain and postpartum weight retention among women in Beijing].

Objective: To investigate the relationship of pre-pregnancy body weight, gestational weight gain and postpartum weight retention among women in Beijing.

Methods: Using a cohort design, 600 pregnant women who went to district obstetrics and gynecology hospital in Beijing to establish preconception health care card from 5(th) February to 15(th) March 2009 were recruited. A total of 112 subjects (109 with valid data), 20% of that in baseline, were followed up at 6 months after delivery.

[Evaluation of feeding behavior among infants and young children aged from 6 to 24-month-old in Chengdu by feeding index method].

Objective: To evaluate the feeding behavior of infants and young children aged from 6 to 24-month-old in Chengdu by feeding index.

Methods: 608 infants and young children were randomly selected from Chengdu and divided into 6-, 9-, 12 - 24 month-old groups. Data including basic information, breastfeeding, and complementary feeding were collected through questionnaire.

[Effects of different feeding patterns on body weight of perinatal women in rural area].

Objective: To study the relations between different feeding patterns and the body weight retention of the perinatal women living in rural areas of China.

Methods: A cluster sampling method was used to investigate 409 women, who are currently living in rural areas of Tianjin, at pregnant and perinatal status. While, their body weights and heights before pregnancy, antepartum and postpartum were measured, respectively.

[The impact of experience in bearing child on the body mass index and obesity in women].

Objective: To analyze the relations of body mass index(BMI)and obese prevalence in differently aged women and explore the effective strategy for preventing obesity among adult Chinese women.

Method: This study was based on the data from 2002 National Nutrition and Health Survey. The method of multi-steps cluster sampling was adopted.

[Effects of nutritional education on improvement of nutritional knowledge of infant's mothers in rural area in China].

Objective: To investigate the knowledge, attitude and practice (KAP) of young children's mothers on infant feeding and to evaluate the effects of nutritional education in the rural areas.

Methods: A cluster sampling method was used to select the local health station. Five hundred and fifteen mothers, who had infants with age of 4 - 6 months, were recruited for the questionnaire survey on the nutritional knowledge in rural areas of Tianjin municipality.

[The relationship of milk consumption and development of 3 - 6 years old preschool children].

Objective: To study the relationship between milk intake of 3 - 6 years old preschool children and their growth.

Methods: The data bank of 2002 China National and Health Survey were used to analyze the relationship of milk consumption and the growth of children aged 3 - 6 in urban and rural areas.

Results: The percentages of the diet with milk in urban and rural areas were 46.

[The influence of maternal nutrition on children physical development].

Objective: To study the effect of maternal nutrition status on child growth in China.

Methods: The study was performed using data from 2002 China Nutrition Health Survey in which data were collected through stratified multi-stage cluster samples in 31 provinces, autonomous regions, and municipalities. Accroding to the height of women aged 18-44 y was 156.

[Study on the effect of malnutrition and anemia identified among general population in 2002 to the future productivity in China].

Objective: To measure the social productivity loss and negative effect to economic development due to malnutrition in view of quantitative analysis.

Methods: Using the data of childhood stunting and population anemia status, collected by 2002 National Nutrition and Health Survey to analyse the effect on present and future productivity. PROFILES model was used to estimate two kinds of productivity losses: "Future productivity loss" was figured out based on the data of stunting and anemia status in 0-5 year-old children while "Current productivity loss" was from anemia data of the adults.

[Effects of ferrous sulfate supplementation on bone marrow hemopoiesis in rats].

Objective: To explore the influences of different dosage ferrous sulfate supplements on bone marrow hemopoiesis in rats.

Methods: Female weaning Wistar rats were fed with an iron deficient diet (< 10 mg/kg diet) until the level of hemoglobin of rats was lower than 100 g/L. Rats (n = 50) were randomly divided into five groups according to the levels of hemoglobin and body weight, iron deficiency control (ID), daily low iron diet supplement (LDs), daily high iron diet supplement (HDs), weekly low iron supplement (LWs), and weekly high iron supplement (HWs).

[Association between hemoglobin level of children < or = 3 years and anemia of their mother].

Objective: To study the relationship between the hemoglobin level of children < or = 3 years and anemia of their mothers.

Methods: Multi-steps cluster sampling was adopted. In order to ensure sufficient number of babies and young children and postpartum in this survey, additional subjects were included in the sample.

[Distribution of feeding index and association between feeding index and growth of infants and young child aged 6 - 24 months].

Objective: Data from the Nutrition and Health Survey of the Chinese People on 2002 were use to explore the feasibility of creating a composite feeding index and examine the association between feeding practices and growth of infants and young child.

Methods: The variables used for index were as follows: current breast-feeding, introduction of complementary foods, the past month and feeding frequency. The index was made age specific for 6- to 9-, 9- to 12- and 12- to 24-month-old age groups, age-specific feeding terciles were created to evaluate the association between feeding index and growth.

[Observation on the efficacy of glycine chelated iron (II) in improving nutritional anemia in children].

Objective: To observe the efficiency of glycine chelated iron (II) on nutritional iron-deficient anemia.

Method: The iron-deficient anemic children (120 subjects), aged 7 - 12 were randomly divided into two groups, one group as a control group given with a placeboes and another group treated with glycine chelated iron (II) for one month.

Results: Compared with the control group, the addition of glycine chelated iron (II) group had a significantly higher hemoglobin level ( > 10 g/L) in whole blood and a lower free erythrocyte protoporphyrin (FEP) content.

[Evaluation on glycine chelated iron (II) in improving nutritional anemia in rats].

Objective: In order to evaluate the efficacy of glycine chelated iron (II) in improving nutritional anemia in rats.

Methods: After weaning wistar rats, weighing 50 - 60g, were fed the iron deficient diet for three weeks, whole blood was taken from rat's tail to measure Hb, then the rats were randomly divided into five groups by Hb, that is the control group fed with iron deficient diet, three groups fed the diets supplemented with different glycine chelated iron (II), and another group fed with the diet added with lactate iron. Each group was fed respective diets for four weeks and indicators related to iron-deficient nutritional anemia were evaluated.