Among low-wage workers, three-fourths do not have employer-sponsored health care, and nearly 40 percent have no health insurance from any source, according to a new report from the Center from Economic and Policy Research and the Georgetown University Kalmanovitz Initiative for Labor and the Working Poor.

For the past three decades, employer-sponsored health coverage has declined among all workers, but the steepest fall has been for low-wage workers, the report finds. In 1979, 43 percent of low-wage workers had employer-sponsored health insurance, but by 2010, which is the most recent data, only 26 percent had employer-sponsored health insurance.

Other health insurance sources have not filled the void of declining employer-provided coverage, the report reveals. In 1979, 16 percent of low-wage workers were without any type of health insurance. That figure jumped to 39 percent in 2010.