Table 3.
Group | Intervention arm | Control arm | |||
---|---|---|---|---|---|
| |||||
Cluster vaccination increase, M (SD) | p-value* for difference within Intervention arm | Cluster vaccination increase, M (SD) | p-value* for difference within Control arm | p-value† for difference between Intervention and Control arms | |
Overall | 9.9 (6.6) | 0.001 | 4.2 (4.2) | 0.012 | 0.007 |
Age group | |||||
6–23 months | 7.2 (8.8) | 0.028 | 5.2 (7.5) | 0.057 | 0.586 |
2–8 years | 10.2 (7.6) | 0.002 | 3.6 (6.8) | 0.126 | 0.057 |
9–18 years | 11.1 (7.4) | 0.001 | 4.3 (4.4) | 0.012 | 0.024 |
Race | |||||
Non-white | 16.7 (7.2) | <0.001 | 4.6 (4.7) | 0.013 | <0.001 |
White | 8.1 (5.8) | 0.002 | 3.7 (4.0) | 0.018 | 0.063 |
Note: Differences from pre-intervention (2010–2011) to intervention (2011–2012) years were calculated for each site (cluster), then averaged for each intervention arm (Intervention and Control). Boldface indicates statistical significance.
By Paired t-tests.
By t-test.