Eating patterns of children's favorite foods and its related factors among elementary, middle, and high school students in Korea.

Background/objectives: There are limited studies investigating the eating patterns of children's favorite foods. The present study aimed to evaluate a wide range of children's favorite foods, derive its eating patterns, and identify factors related to the patterns.

Subjects/methods: A nationwide cross-sectional study included 5,458 students in elementary, middle, and high schools.

[Effects of the late marriage of Korean women on the first-birth interval].

Objectives: The purpose of this study was to examine the effect of women's late age of marriage on the interval between marriage and their first birth.

Methods: Data from Year 2000 Korea National Fertility Survey was collected through direct interview questionings, and the data was analyzed based on randomly selected sampling. In particular, the married women (N=5,648) were analyzed for the factors that determined the first-birth interval by performing Cox's proportional hazard model survival analysis.