TABLE 5.

Distribution of iha and iroN_{E. coli} according to the presence or absence of host compromise

Host compromise condition	Prevalence (%) of ihaa			Prevalence (%) of iroNE. coli
	Host condition		P valueb	Host condition		P value
	Present	Absent		Present	Absent
Medical illnessc	40	64f	(0.076)	48	33f
Diabetes mellitus	50	56g		50	37g
Cancer	31	61f	(0.065)	54	35f
Immunosuppression	46	57f		69	31f	0.02
Uremia	25	59g		38	39g
Urinary tract abnormalityd	47	62		37	41
Upper urinary tract	13	56h	(0.018)	38	39h
Urinary tract instrumentation	25	65h	(0.009)	38	39h
Any of abovee	44	77f	(0.018)	42	32f	0.03

^aThe denominator for prevalence values was the number of patients with or without the indicated compromising condition. 

^bFor comparisons between patients with versus patients without the indicated type of host compromise, P values (by Fisher's exact test) shown only where <0.10. (Parentheses indicate negative associations of iha with host compromise.) 

^cIncluding diabetes mellitus, cancer, immunosuppression, and uremia. 

^dPreexisting functional or anatomic abnormality of the urinary tract. 

^eAny of the above conditions, i.e., medical illness or urinary tract abnormality or instrumentation. 

^fAmong patients without the indicated host compromise condition, for prevalence of iha versus iroN_{E. coli}, P < 0.02 (McNemar's test). Among patients with the indicated host compromise condition, P > 0.10 for all comparisons of iha versus iroN_{E. coli}. 

^gAmong patients without the indicated host compromise condition, for prevalence of iha versus iroN_{E. coli}, 0.05 < P < 0.10 (McNemar's test). Among patients with the indicated host compromise condition, P > 0.10 for all comparisons of iha versus iroN_{E. coli}. 

^hAmong patients without the indicated host compromise condition, for prevalence of iha versus iroN_{E. coli}, and P < 0.05 (McNemar's test). Among patients with the indicated host compromise condition, P > 0.10 for all comparisons of iha versus iroN_{E. coli}.