Table 3.

Pediatric Immunization: Chart Reviewed and Percent of Meeting Criterion by Center by Time

TimeNonincentivized GroupIncentivized GroupP*
Total Charts Reviewed (n)Charts Meeting Criterion (n [%])Total Charts Reviewed (n)Charts Meeting Criterion (n [%])
2001
    1st quarter3029 (96.67)226221 (97.79).582
    2nd quarter5451 (94.44)272268 (98.53).139
    3rd quarter7253 (73.61)248244 (98.39)<.0001
    4th quarter8760 (68.97)316290 (91.77).055
2002
    1st quarter189135 (71.43)403359 (89.08).013
    2nd quarter5237 (71.15)149137 (91.95).002
    3rd quarter207181 (87.44)458425 (92.79).056
    4th quarter211181 (85.78)493462 (93.71).017
2003
    1st quarter207163 (78.74)488331 (67.83).092
    2nd quarter159118 (74.21)279221 (79.21).636
    3rd quarter208163 (78.37)405302 (74.57).775
    4th quarter216174 (80.56)495371 (74.95).853
2004
    1st quarter219191 (87.21)511406 (79.45).830
    2nd quarter179151 (84.36)489472 (96.52).0001
    3rd quarter228202 (88.60)488482 (98.77)<.0001
    4th quarter224201 (89.73)320316 (98.75)<.0001
  • No difference was found between nonincentivized and incentivized groups in the 1st and 2nd quarters of 2001. The incentivized group had a higher percent of meeting pediatric immunization criterion during the 3rd quarter of 2001; the 1st, 2nd, and 4th quarters of 2002 (P < .05 for all); and the 2nd to 4th quarters of 2004 (P < .05 for all).

  • * Within-clinic clustering adjusted.