Table 2. Diversity indices of bacterial species identified in cockroaches associated with the surveyed hospitals.

Hospital	Sex	Position	N	S	N/S	H′	E
A	M	AT	22	9	2.44	2.86	0.90
		ES	13	5	2.6	2.30	0.99
	F	AT	36	7	5.14	2.67	0.95
		ES	49	9	5.44	2.90	0.92
B	M	AT	10	5	2	2.25	0.97
		ES	12	7	1.71	2.63	0.94
	F	AT	19	10	1.9	3.18	0.96
		ES	13	6	2.16	2.32	0.90

AT, alimentary tract; ES, external surface; N, number of bacterial isolates; S, species richness; H′, Shannon’s index; E, evenness; M, male cockroach; F, female cockroach.