关键词: 俯卧时间, 身体活动, 婴儿

Abstract: Objective To analyze the current status of tummy time among infants in Beijing during early infancy and its influencing factors, in order to provide basis for parental guidance on childcare practices and promote children's growth and development. Methods From June 1st to August 31st, 2021, two streets/township community health service centers from each of two districts in Beijing were selected using cluster sampling, from which 447 resident infants were randomly sampled. Caregivers were surveyed via questionnaire covering demographic information and details of infants' tummy time. Results Among 447 infants, 58.4% started their tummy time within 1 month of birth. Only 15.0% of infants under 4 months spent ≥ 30min on tummy time. Univariate analysis showed that infant tummy time increased with infant age(χ²=0.283,P<0.05). Infants in the 30- to 34-year-old maternal age group had a higher proportion of ≥30-minute tummy time compared to those with mothers younger than 30 or older than 35. Multivariate analysis revealed that being 0-month-old (OR=12.369, 95%CI: 4.056 - 37.723) or 1-month-old (OR=4.751, 95%CI: 1.657 - 13.080), and maternal education levels of college or below (OR=2.670, 95%CI: 1.143 - 6.242) were risk factors for tummy time during infancy (P<0.05), while fathers being under 30 years old acted as protective role in tummy time during infancy (OR=0.135, 95%CI: 0.034 - 0.533, P<0.05). Conclusions The proportion of infants spending ≥30 minutes daily in tummy time during early infancy is not high. Tummy time is influenced by factors including infant age, mother's educational level, and father's age, necessitating enhanced education and guidance for parents regarding the importance of tummy time in early infancy.

Key words: tummy time, physical activity, infants