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

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

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

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)

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