. Author manuscript; available in PMC: 2011 Aug 9.

Published in final edited form as: J Neurosurg Pediatr. 2011 Jul;8(1):22–29. doi: 10.3171/2011.4.PEDS10551

TABLE 3.

Center-specific infection rates

Center	Preprotocol Infections (%)	Infections Using Protocol (%)	Absolute Shunt Infection Risk Reduction (%) ± 95% CI	Relative Shunt Infection Risk Reduction (%)
A	40/316 (12.7)	23/535 (4.3)	8.4 ± 2.1	66
B	14/197 (7.1)	41/531 (7.7)	−0.6 ± 2.2	−9
C	14/221 (6.3)	14/289 (4.8)	1.5 ± 2.1	24
D	11/162 (6.8)	11/216 (5.1)	1.7 ± 2.5	25
entire network^*	79/896 (8.8)	89/1571 (5.7)	3.2 ± 1.1	36

Significant reduction in Network-wide infection rate after introduction of the protocol (p = 0.0028).