Sabino Kornrich, Julie Brines, Katrina Leupp. Egalitarianism, Housework, and Sexual Frequency in Marriage American Sociological Review February 2013 vol. 78 no. 1 26-50 doi: 10.1177/0003122412472340
Data are from Wave II of the National Survey of Families and Households published in 1996, interviews from 1992-1994.
The division of labor:
Core tasks include preparing meals, washing dishes, cleaning house, shopping, and washing and ironing; non-core tasks include outdoor work, paying bills, auto maintenance, and driving.
As you can see in the graph, the more of the “core” tasks a man completes, the less sex he gets.
The covariates for overall marital happiness and specific happiness with spouses’ contribution to housework did not change this relationship. The covariate for gender-traditional ideology on household labor likewise did not change this relationship. Thus, none of these factors explains the relationship between sex frequency and the participation of the man in “core” chores.
As a commenter pointed out, if he’s getting less sex, so is she. (I think the above graph is in units of orgasms per year.) So maybe the title should be, “If your husband does more housework you get less sex.”
As a statistician, of course I’m most amused by the above graph with those amazingly straight lines. I can’t laugh too much, though, as I’ve been guilty of similar abominations myself (see figure 3 in this paper, for example).
Oh well. As the saying goes, what’s the point of living in a glass house if you can’t throw stones?