Comparison of Respondents and Nonrespondents and Additional Characteristics of Respondents' Practices
| Characteristic | Pediatricians | Family Medicine Physicians | ||
|---|---|---|---|---|
| Respondents (N = 360) | Nonrespondents (N = 69) | Respondents (N = 331) | Nonrespondents (N = 88) | |
| Year of graduation, median | 1985 | 1986 | 1987 | 1987 |
| Male, % (n) | 51 (184) | 48 (32) | 56 (185) | 66 (58) |
| Region of country, % (n) | ||||
| Midwest | 21 (75) | 13 (9) | 28 (94) | 35 (31) |
| Northeast | 28 (101) | 30 (21) | 16 (53) | 13 (11) |
| South | 34 (121) | 38 (26) | 31 (102) | 34 (30) |
| West | 18 (63) | 19 (13) | 25 (82) | 18 (16) |
| Location of practice, % (n) | ||||
| Urban, inner city | 46 (164) | 36 (25) | 27 (90) | 25 (22) |
| Urban, not inner city/suburban | 41 (149)a | 59 (41)a | 45 (149) | 44 (39) |
| Rural | 13 (47)a | 4 (3)a | 28 (92) | 31 (27) |
| Type of practice, % (n) | ||||
| Private practice | 86 (311) | 81 (56) | 79 (261) | 80 (70) |
| Community- or hospital-based | 12 (42) | 16 (11) | 19 (64) | 16 (14) |
| Managed care organization | 2 (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)b | 82 (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).