TABLE 2

Physician Maldistribution and Associated Physician and Population Characteristics According to Per-Capita Supply at PCSA Level in 2006

<1000 Children per Physician1000–2000 Children per Physician2000–3000 Children per Physician>3000 Children per PhysicianNo Child Physicians
No. of PCSAs (N = 6542)696176610372059984
No. of children (N = 73 653 053)12 930 19734 967 45213 461 13811 340 270953 995
% of US child population17.647.518.315.41.3
Population characteristics
    Median household income, mean (95% CI), $a61 895 (60 582–63 209)54 831 (54 221–55 440)50 386 (49 685–51 086)45 864 (45 410–46 319)40 118 (39 592–40 644)
    0–17 y in poverty, %a (95% CI)14.6 (12.0–17.2)15.4 (13.7–17.1)17.2 (14.9–19.4)19.4 (17.7–21.1)20.6 (18.1–23.1)
    Rural, %b (95% CI)6.4 (4.6–8.2)13.5 (11.9–15.1)22.7 (20.2–25.3)36.4 (34.3–38.5)65.0 (62.0–68.0)
Child physician characteristics
    No. of child physicians per 100 000 children, mean (95% CI)146.8 (142.1–151.4)71.0 (70.5–71.6)41.8 (41.6–42.1)21.3 (21.0–21.6)0
    Female, %a (95% CI)58.8 (55.2–62.5)50.7 (48.3–53.0)46.0 (43.0–49.0)38.9 (36.8–41.0)NA
    International medical graduate, % (95% CI)19.8 (16.9–22.8)24.0 (22.0–26.0)28.6 (25.8–31.3)26.4 (24.5–28.3)NA
    >45 y of age, %a (95% CI)44.0 (40.3–47.7)48.1 (45.7–50.4)49.7 (46.7–52.8)55.1 (53.0–57.3)NA
    Board-certified in pediatrics or family medicine, %c (95% CI)85.9 (83.4–88.5)83.2 (81.4–84.9)79.4 (77.0–81.9)76.3 (74.5–78.2)NA
  • NA indicates not applicable; CI, confidence interval.

  • a Linear test of trend at PCSA level, P < .0001.

  • b Linear test of trend at PCSA level, P < .01.

  • c Linear test of trend at PCSA level, P < .001.