Table 2.
Site | Baseline Overall (n = 35,534) |
Active Intervention Overall (n =42,168) |
Maintenance Overall (n = 44,923) |
Immediate Intervention Effect |
Overall (2 Year) Intervention Effect |
Sustained Intervention Effect |
|||
---|---|---|---|---|---|---|---|---|---|
No. of Patients | Percentage Vaccinated (Column a) | No. of Patients | Percentage Vaccinated (Column b) | No. of Patients | Percentage Vaccinated (Column c) | Difference, % (b – a) | Difference, % (c – a) | Difference, % (c – b) | |
1 | 537 | 14.0 | 603 | 26.0 | 478 | 24.7 | 12.1* | 10.7* | −1.4 |
2 | 1357 | 24.2 | 1370 | 43.0 | 1305 | 39.9 | 18.8* | 15.8* | −3.0 |
3 | 523 | 28.5 | 1735 | 48.2 | 1885 | 45.5 | 19.8* | 17.0* | −2.8 |
4 | 2009 | 36.8 | 6787 | 65.2 | 7037 | 62.1 | 28.4* | 25.4* | −3.0† |
5 | 5913 | 42.3 | 5815 | 52.9 | 6013 | 55.1 | 10.7* | 12.9* | 2.2** |
6 | 3886 | 42.1 | 4174 | 54.9 | 4658 | 56.9 | 12.8* | 14.8* | 2.0 |
7 | 3959 | 49.9 | 4138 | 60.9 | 4637 | 62.8 | 11.0* | 12.9* | 1.9 |
8 | 7189 | 54.0 | 7346 | 61.1 | 7745 | 65.4 | 7.0* | 11.3* | 4.3† |
9 | 6047 | 63.2 | 5866 | 64.4 | 6214 | 67.0 | 1.2 | 3.8* | 2.6* |
10 | 4114 | 67.4 | 4334 | 69.3 | 4951 | 70.3 | 1.9 | 2.9* | 1.0 |
Site average | 42.2 | 54.6 | 54.9 | 12.4* | 12.7† | 0.3 | |||
All children combined | 50.3 | 59.7 | 61.1 | 9.4* | 10.8† | 1.4 |
P < .01 for difference in vaccination rates between seasons by paired t tests for within-site comparisons and by t tests for overall comparison.
P < .05 for difference in vaccination rates between seasons by paired t tests for within-site comparisons.
P < .001 for difference in vaccination rates between seasons by paired t tests for within-site comparisons and by t tests for overall comparison.