Mind the Gap: An Analysis of Physical Therapist Earnings in the United States by Male/Female Sex.

Abstract

Earnings discrepancies between male and female health and medical professionals are well documented. The purpose of this study was to examine the distribution of physical therapist earnings using a quartile regression approach to determine the nature of the gender-based differences in earnings between male and female physical therapists in the United States, with "gender" as defined by the dataset as being male or female. This observational study used data from the 2014 to 2018 American Community Survey 5-year public use microdata file. The file contained 12,123 physical therapist cases weighted to an estimate of the physical therapist active workforce of 238,221 (95% CI = 232,587 to 243,855). To analyze the influence of gender on earnings, a multivariable quantile regression approach was used in which physical therapist earnings were the dependent variable and the variables representing the geographic distribution, social characteristics, and employment characteristics were the independent variables. In 2018 dollars, the average annual earnings of a physical therapist were $73,444.98 (95% CI = $72,498.19 to $74,391.11), with a median value of $71,735.09. Differences in male and female earnings were evident in both the unadjusted bivariable and in the adjusted values produced by the quartile regression. The ratios of female-to-male earnings at each quartile were 0.89, 0.90, and 0.89. When age of the earner is accounted for, male physical therapists earned more than female therapists in both the 30-to-54-year age group and the ≥55-year age group. In the youngest age group of earners under 30years of age, the differences were substantially smaller. Gender differences in income persist across the distribution of earnings, resulting in female physical therapists earning approximately 10% less than their male counterparts. The differences are most distinct as physical therapists advance in their careers. The etiology of the earnings gap is unknown, but gender equity has not been achieved yet for physical therapy.