OBJECTIVES: Uncontrolled asthma is an important leading cause of school absenteeism. Healthy People 2020, the nationwide health-promotion priorities, aims at reducing the prevalence of missed school days among children with asthma and increasing the proportion with at least one follow-up visit per year to achieve asthma control. The purpose of this study was to examine the association between missed school days of children and adolescents with asthma and the number of preventive care visits they received within the past 12 months.  METHODS: Cross-sectional data among U.S. children aged 6–17 were obtained from the 2011/2012 National Survey of Children's Health. Children with parent-reported current asthma were included. Multivariate logistic regression examined the relationship between missed school days (0, 1-2, 3-5, and ≥6 days) and having preventive care visits (0 vs. ≥1 times). Subgroup analyses were performed to identify whether the relationship varies with parental perceptions of their child's asthma symptoms (mild vs. moderate or severe). All analyses were conducted using SAS® survey procedures.  RESULTS: