Time | Nonincentivized Group | Incentivized Group | P* | ||
---|---|---|---|---|---|
Total Charts Reviewed (n) | Charts Meeting Criterion (n [%]) | Total Charts Reviewed (n) | Charts Meeting Criterion (n [%]) | ||
2001 | |||||
1st quarter | 30 | 29 (96.67) | 226 | 221 (97.79) | .582 |
2nd quarter | 54 | 51 (94.44) | 272 | 268 (98.53) | .139 |
3rd quarter | 72 | 53 (73.61) | 248 | 244 (98.39) | <.0001 |
4th quarter | 87 | 60 (68.97) | 316 | 290 (91.77) | .055 |
2002 | |||||
1st quarter | 189 | 135 (71.43) | 403 | 359 (89.08) | .013 |
2nd quarter | 52 | 37 (71.15) | 149 | 137 (91.95) | .002 |
3rd quarter | 207 | 181 (87.44) | 458 | 425 (92.79) | .056 |
4th quarter | 211 | 181 (85.78) | 493 | 462 (93.71) | .017 |
2003 | |||||
1st quarter | 207 | 163 (78.74) | 488 | 331 (67.83) | .092 |
2nd quarter | 159 | 118 (74.21) | 279 | 221 (79.21) | .636 |
3rd quarter | 208 | 163 (78.37) | 405 | 302 (74.57) | .775 |
4th quarter | 216 | 174 (80.56) | 495 | 371 (74.95) | .853 |
2004 | |||||
1st quarter | 219 | 191 (87.21) | 511 | 406 (79.45) | .830 |
2nd quarter | 179 | 151 (84.36) | 489 | 472 (96.52) | .0001 |
3rd quarter | 228 | 202 (88.60) | 488 | 482 (98.77) | <.0001 |
4th quarter | 224 | 201 (89.73) | 320 | 316 (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.