Line chart. Percentage of adults in three annual household income groups since 2001 who say they or a family member have put off medical treatment for a very or somewhat serious condition within twelve months due to the cost the would have to pay. The latest reading, from a Nov. 9 to Dec. 2, 2022 Gallup poll, found 34% of those with lower incomes, 29% of those with middle incomes and 18% of those with upper incomes say they have delayed treatment. Each is an increase from last year.