TABLE 1

Comparison of Respondents and Nonrespondents and Additional Characteristics of Respondents' Practices

CharacteristicPediatriciansFamily Medicine Physicians
Respondents (N = 360)Nonrespondents (N = 69)Respondents (N = 331)Nonrespondents (N = 88)
Year of graduation, median1985198619871987
Male, % (n)51 (184)48 (32)56 (185)66 (58)
Region of country, % (n)
    Midwest21 (75)13 (9)28 (94)35 (31)
    Northeast28 (101)30 (21)16 (53)13 (11)
    South34 (121)38 (26)31 (102)34 (30)
    West18 (63)19 (13)25 (82)18 (16)
Location of practice, % (n)
    Urban, inner city46 (164)36 (25)27 (90)25 (22)
    Urban, not inner city/suburban41 (149)a59 (41)a45 (149)44 (39)
    Rural13 (47)a4 (3)a28 (92)31 (27)
Type of practice, % (n)
    Private practice86 (311)81 (56)79 (261)80 (70)
    Community- or hospital-based12 (42)16 (11)19 (64)16 (14)
    Managed care organization2 (7)3 (2)2 (6)5 (4)
Proportion with Medicaid or SCHIP, % (n)
    <10%32 (112)43 (133)
    10%–24%30 (105)27 (84)
    25%–49%19 (65)19 (58)
    ≥50%20 (69)12 (37)
Proportion with private insurance, % (n)
    <25%16 (55)18 (56)
    25%–49%14 (49)20 (64)
    50%–74%34 (119)32 (102)
    ≥75%37 (131)30 (95)
Proportion Hispanic, % (n)
    <10%45 (158)62 (192)
    10%–24%49 (171)36 (111)
    ≥25%6 (21)3 (8)
Proportion black, % (n)
    <10%45 (158)62 (193)
    10%–24%51 (177)36 (112)
    ≥25%4 (14)2 (7)
Proportion participating in VFC program, % (n)b82 (289)65 (168)
  • SCHIP indicates State Children's Health Insurance Program; VFC, Vaccines for Children; —, not available.

  • a P < .05 for comparison between respondents and nonrespondents within each specialty, with the χ2 test, t test, or Wilcoxon test as appropriate.

  • b Of physicians who see patients <6 months of age (family medicine physicians: n = 264; pediatricians: n = 359).