Nearly two million low-income Americans, including 469,000 households with young children, would be stripped of benefits under the House version of the farm bill being considered this week by congressional negotiators, according to an analysis by a nonpartisan research firm.

The bill, a multiyear spending measure that narrowly passed the House in June, includes a proposal to reformulate income and expense criteria for the 42 million recipients of the Supplemental Nutrition Assistance Program.

Under the bill, states could remove about 8 percent of those receiving aid from the rolls, according to the research firm, Mathematica, which used data from the Agriculture Department’s Food and Nutrition Service.

About 34 percent of seniors in the program, or 677,000 households, would lose benefits under the proposal, according to the study. More than one in 10 people with a disability, another 214,000 households, would also lose eligibility.