[Sleep patterns of infants and young children and their association with breastfeeding: a study based on K-means clustering].

Objectives: To investigate the sleep patterns and characteristics of infants and young children and the association between sleep patterns and breastfeeding.

Methods: A general information questionnaire, Brief Infant Sleep Questionnaire (BISQ), and a questionnaire on feeding were used to investigate the sleep quality and feeding patterns of 1 148 infants and young children aged 7-35 months. The K-means clustering method was used to identify sleep patterns and characteristics.

[Risk factors for allergic diseases in children aged 0-24 months in the Wuhu urban area, Anhui Province, China].

Objective: To investigate the prevalence of allergic diseases in children aged 0-24 months in the Wuhu urban area of Anhui Province and risk factors for allergic diseases.

Methods: Cluster random sampling was performed to select 600 children aged 0-24 months and their mothers from the Wuhu urban area, and a questionnaire survey was conducted to collect the data of disease history, family history, mothers' conditions during pregnancy, and child-rearing situation. Univariate analysis and multivariate logistic regression analysis were performed for such data.