These values represents those grandparents living with their own grandchildren under 18 years old and that are financially responsible for food, shelter, clothing, daycare, etc. These values were obtained from the proportion of grandparents living with their grandchildren and responsible for their basic need from the population of grandparents living with their grandchildren below the poverty level.
These federal poverty thresholds definitions considers three parameters: family composition, family income, and the annual inflation. To determine the family income it is considered: earnings, unemployment compensation, workers' compensation, Social Security, Supplemental Security Income, public assistance, veterans' payments, survivor benefits, pension or retirement income, interest, dividends, rents, royalties, income from estates, trusts, educational assistance, alimony, child support, assistance from outside the household, and other miscellaneous sources. On the other side, these values does not includes information about unrelated individuals under age 15, institutional group quarters (such as prisons or nursing homes), nursing homes, college dormitories, military barracks and people living situations without conventional housing (and who are not in shelters). Also non-cash benefits like food stamps, housing subsides, capital gain or losses, and the income of non- relatives in the household are not considered.
U.S. Census Bureau, American Community Survey (5 yrs estimates). September 2018.