Childhood obesity, Health knowledge, Health practice, Social support, Social determinants, Weight management, Public aspects of medicine, RA1-1270

Abstract Background Family environmental factors play a vital role in shaping children’s health practices (e.g., obesity prevention). It is still unclear how parents’ social support affects children’s obesity-related health practices. The present study argues that whether parents’ social support positively associates with children’s obesity-related health practice depends on if it could promote parents’ obesity-related health knowledge. Thus, we hypothesize that health knowledge mediates the relationship between parents’ social support and children’s health practice regarding weight management. Methods To test the hypothesis, we conducted a questionnaire survey and collected a nationally representative sample of 1488 household responses in Singapore. The survey included questions about parents’ social support, health knowledge, children’s health practices, and socio-demographic variables. All participants have at least one child 14 years old or younger. In the sample, 66.1% of the respondents are female, and 93.7% are below 50 years old. Structural equation modeling (SEM) via Stata was used to examine the associations between parents’ social support, health knowledge, and children’s health practice. Results The results of our analysis support our hypothesis. Specifically, (1) parents’ social support shows a positive relationship with health knowledge (Coef. = 0.17, p