Children in married-parent families are less likely to have asthma
Children living in single-mother homes or homes in which neither parent is present are twice as likely to have been diagnosed with or still have asthma compared to peers living with fathers only or married parents.
Percent of children age 0–17 with asthma

Source: National Center for Health Statistics, National Health Interview Survey, 2011, and America’s Children in Brief: Key National Indicators of Well-Being 2012.