Table 1. Frequency of Escherichia coli and Klebsiella pneumoniae culture as observed during laboratory- and population-based surveillance from outpatients and inpatients.

	Outpatients				Inpatients
	Laboratory-based N = 227		Population-based N = 339		Laboratory-based N = 669		Population-based N = 306
	n	%	n	%	n	%	n	%
E. coli	124	54.6	221	65.2	189	28.3	199	65.0
K. pneumoniae	33	14.5	40	11.8	128	19.1	48	15.7
Other	70	30.8	78	23.0	352	52.6	59	19.3

N = total number of isolates identified; n = total number of isolates per species.