Sex Ratio at Birth in Vietnam: Results From Data in CHILILAB HDSS, 2004 to 2013.

This study aimed to explore the association of demographic and socioeconomic characteristics and imbalanced sex ratio at birth (SRB) in Chi Linh district, Hai Duong. The data were collected from a longitudinal study using a community-based periodic, referred as Chi Linh Health and Demographic Surveillance System (CHILILAB HDSS) during 2004 to 2013. A total of 7568 children were analyzed. Results showed that SRB in Chi Linh dramatically increased to the imbalanced sex ratio (114.6 boys to 100 girls) by 2013. SRB was associated with birth order and sex of preceding siblings. SRB was extremely high among families without any sons (136/100). SRB was highest among families having third or more children (175/100). Imbalanced SRB was more likely to occur among women working in small business/homemakers and others, women who attained high education level, and women in wealthy households. We suggested further efforts to tackle imbalanced SRB in periurban areas in Vietnam.

The Chi Linh Health and Demographic Surveillance System (CHILILAB HDSS).

The Chi Linh Health and Demographic Surveillance System (CHILILAB HDSS) is the only health and demographic surveillance system (HDSS) in an urbanizing area of the Chi Linh district of Hai Duong, a northern province of Vietnam. It is one of the few field laboratories in the world that links operational research and health interventions with field training. The CHILILAB HDSS provides longitudinal data on demographic and health indicators for the community of Chi Linh. In 2012, when the CHILILAB HDSS included 57,561 people from 17 993 households in 3 towns and 4 communes, it used structured questionnaires to collect information on population changes (birth, death, migration, marriage, and pregnancy) in the community. As of December 2012, 5 rounds of a baseline survey and 17 periodic update surveys or re-enumeration surveys had been conducted. In addition, several specialized public-health research projects, focused particularly on adolescent health, have been implemented by the CHILILAB HDSS. The information that the CHILILAB HDSS has gathered provides a picture of the health status of the population and socio-economic situation in Chi Linh district. The contact person for data sharing is the director of the CHILILAB (E-mail: thb@hsph.edu.vn).

Relationship between paternal involvement and child malnutrition in a rural area of Vietnam.

BACKGROUND: Malnutrition is a public health problem in Vietnam. Child health and the status of women have been targets for various health programs in the country. In general, reports in the literature suggest that care is positively correlated with positive nutritional status of children. In the household, the father is considered a resource for care. However, the role of paternal care in health programs has not received the attention it deserves. OBJECTIVE: To identify associations between the involvement of fathers in child care and housework and the nutritional status of children under 3 years of age. METHODS: This cross-sectional study was based on a random sample of 547 children under 3 years of age from intact families and their biological parents. The main outcome variable was child nutrition. Predictor variables represented two domains of father's involvement. Multivariable general linear modeling and multivariable logistic regression modeling were performed with the use of a combination of stepwise and hierarchical approaches in data analysis. RESULTS: The overall prevalence of underweight among children was 19.1%, and the prevalence of stunting was 14.4%. Children whose fathers did not bring them to a medical facility for immunization were about 1.7 times more likely to be underweight and stunted than those whose fathers did bring them for immunization after child's age, household economic status, and mother's education were controlled for. Father's involvement in housework was not found to be related to the prevalence of malnutrition. CONCLUSIONS: Paternal involvement in child immunization should be encouraged by health-care providers who manage immunization programs.