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Table 6 Comparing rate of shuntinfection by the number of shunt surgery and AIS vs non-AIS

From: Do antibiotic-impregnated shunts in hydrocephalus therapy reduce the risk of infection? An observational study in 258 patients

No. of shunt surgery   No shuntinfection Shuntinfection N
1 non-AIS 58 (100 %) 0 (0 %) 58
1 AIS 34 (100 %) 0 (0 %) 34
2 or more non-AIS 104 (91.23 %) 10 (8.77 %) 114
2 or more AIS 47 (90.38 %) 5 (9.62 %) 52
  n 243 15 258
  1. AIS does not differ from non-AIS (p = 0.8611) but No. of shunt surgery >1 differs significantly from No. = 1 (p = 0.0002); (multiple logistic regression)