Women who worked part time—that is, fewer than 35 hours per week—made up 25 percent of all female wage and salary workers in 2003. In contrast, just 11 percent of men in wage and salary jobs worked part time.
Median weekly earnings of female part-time workers were $197, compared with $180 for male part-time workers.
Among part-time workers, men had lower earnings than women because male part-timers tend to be highly concentrated in the youngest age groups, which typically have low earnings. Over half of male part-time workers were 16 to 24 years old, compared with about 30 percent of female part-timers.
Bureau of Labor Statistics, U.S. Department of Labor, The Economics Daily, Part-time workers: who they are and how much they earn at https://www.bls.gov/opub/ted/2004/nov/wk1/art04.htm (visited October 01, 2023).