A recent survey has found that one in three parents have either reduced their working hours or left their jobs entirely in June, a noticeable increase from April's results, which found one in five were contemplating doing so.

The poll, conducted by family benefits platform Cleo, used a sample of 136 respondents from 11 Cleo customers, representing a variety of industries including tech, finance and food and beverage.

Cleo said that a lack of child care options is a major factor in these results. Those reporting that they had some form of child care coverage dropped from 50 percent in April to 35 percent in June and, overall, just 15 percent said they have regular access to child care. When considering the prospect of returning to work, 98 percent of poll respondents said that a top concern was not infection or money but coordinating child care responsibilities with a partner or otherwise figuring out the logistics of who will watch their children when they're out.

The poll also found that some of the plans people had in April to deal with this issue hadn't panned out in June: While 53 percent in the spring said they would move closer to relatives, in June, only 28 percent reported having help from other family members; similarly, while 16 percent in April said they were open to forming or participating in a nanny or care-share model, only 3 percent had actually done so in June.

Another thing the survey revealed was that women are bearing most of the child care burden. Ninety-five percent of survey respondents said the mother was doing at least half of care-giving responsibilities, and 56 percent of mothers said they were managing most or all of these duties.

This is consistent with another recent study, which found that working mothers were reducing their hours at a rate of four to five times as much as fathers, as domestic work began taking over: While mothers scaled back their work hours by about 5 percent, or two hours per week, fathers' work hours remained largely stable. The paper, from researchers at Washington University in St. Louis, used data from the U.S. Current Population Survey from February to April, which is drawn from the responses of some 60,000 households, to look at how dual-earner heterosexual married couples with children adjusted their work during the pandemic.