Table 1.

Distribution of clinic characteristics and provider demographics by study condition and total

Clinic variableControl (N = 12)Intervention (N = 10)Total
Size of clinic
 Number of physicians1.2 ± 0.63.1 ± 2.62.1 ± 2.0
 Number of NPs or PAs0.7 ± 0.71.0 ± 1.20.8 ± 0.9
 Number of nurses3.8 ± 3.04.4 ± 3.34.1 ± 3.1
 Number of nurses who administer vaccines3.4 ± 2.43.4 ± 3.43.4 ± 2.8
 Number of nurses who never administer vaccines0.3 ± 1.21.0 ± 1.50.6 ± 1.3
 Number of MAs, aides, technologists1.1 ± 1.12.4 ± 2.31.7 ± 1.8
 Number of other support personnel3.3 ± 3.35.8 ± 4.54.4 ± 4.0
Patient volume
 Number of adult patients seen last year2,841.4 ± 3,811.74,408.4 ± 5,449.43,401.1 ± 4,322.6
 Number of children patients seen last year1,647.0 ± 2,040.9825.2 ± 330.31,318.3 ± 1,610.2
Percentage of practice revenue driven from
 Medicare13.8 ± 14.315.7 ± 13.414.6 ± 13.4
 Other managed care14.0 ± 14.411.7 ± 14.313.0 ± 13.8
 Medicaid47.7 ± 30.630.2 ± 26.140.7 ± 29.3
 Other insurers13.4 ± 12.010.2 ± 9.612.2 ± 10.8
Percentage of patients uninsured
 Adult population14.4 ± 23.033.0 ± 32.122.4 ± 27.8
 Nonadult population16.2 ± 19.222.6 ± 22.618.8 ± 20.2
Provider variableControl (N = 62)Intervention (N = 57)Total
Age (M ± SD)49.4 ± 13.449.0 ± 12.849.2 ± 13.1
Gender
 Male3 (4.8%)5 (8.8%)8 (6.7%)
 Female58 (93.6%)52 (91.2%)110 (92.4%)
Hispanic
 No62 (100%)56 (98.3%)118 (99.2%)
 Yes0 (0%)1 (1.7%)1 (0.8%)
Race
 White58 (93.6%)55 (96.5%)113 (95.0%)
 Other4 (6.5%)2 (3.5%)6 (5.0%)
Highest level of education completed
 High school5 (8.1%)3 (5.3%)8 (6.7%)
 RN8 (12.9%)10 (17.5%)18 (15.1%)
 Technical school12 (19.4%)7 (12.3%)19 (16.0%)
 Associate degree12 (19.4%)14 (24.6%)26 (21.9%)
 College degree7 (11.3%)6 (10.5%)13 (10.9%)
 Professional degree13 (21.0%)16 (28.1%)29 (24.4%)
Title
 Nurse31 (50.8%)26 (45.6%)57 (48.3%)
 Physician6 (9.8%)5 (8.8%)11 (9.3%)
 Other23 (37.7%)26 (45.6%)49 (41.5%)
Years of practice if nurse or doctor23.2 ± 13.924.0 ± 12.123.6 ± 13.0

NOTE: Two of the 24 clinics did not fill out the questionnaire regarding the clinic characteristics.

Data presented are mean ± SD.

Abbreviations: MA, medical assistant; NP, nurse practitioner; PA, physician assistant; RN, registered nurse.