Table 2. Multivariate Linear Regression Models of Physician Workforce and Abortion Rates Across 50 US States and Washington, DC (2020-2024 Publicly Available Data)
Family physicians
R2 = .668
F = 14.764 (P < .001)

B (SE), p		Internists
R2 = .798
F = 28.958 (P < .001)

B (SE), p		Ob/gyns
R2 = .723
F = 19.125 (P < .001)

B (SE), p
Constant-9.531 (7.546), P = .213-31.407 (6.011), P < .001-26.816 (6.916), P < .001
Physicians per 100,000 population (FPs or internists or ob/gyns—by model) -.212 (.064), P = .002.253 (.037), P < .001.807 (.174), P < .001
Rural population %.010 (.053), P = .858-.014 (.036), P = .697-.054 (.041), P = .198
Pregnancy rate.387 (.0833), P < .001.454 (.065), P < .001.392 (.076), P < .001
1,000 women per clinic-.001 (.003), P = .752-.001 (.002), P = .658-.002 (.003), P = .484
Law: Abortions banned-6.582 (1.459), P < .001-2.929 (1.106), P = .011-3.443 (1.289), P = .011
Law: Abortions 6-12 weeks LMP-3.037 (1.674), P = .076.037 (1.333), P = .978-.618 (1.551), P = .692
Law: Abortions > 18 weeks LMP Excluded for collinearity; reference (dummy variables) Excluded for collinearity; reference (dummy variables) Excluded for collinearity; reference (dummy variables)

Abbreviations: Ob/gyns = obstetrician/gynecologists, FPs = family physicians, LMP = last menstrual period