This was often the result of unemployment or other job changes according to a new study.
The Commonwealth Fund, a nonprofit organization that analyzes healthcare issues, polled more then 2,000 adults.
More than seven out of 10 who lost health insurance spent a year or more without coverage. Researchers say, without that insurance, people quickly disconnected from the healthcare system. They avoided basic medical services such as doctor visits and screenings for everything from cancer to high blood pressure.