Epidemiology of Multi-Drug Resistant Organisms in a Teaching Hospital in Oman: A One-Year Hospital-Based Study

Table 1

Cumulative frequencies and rates of hospital-acquired multidrug resistant organisms (MDRO) among patients and isolates at SQUH, Oman, 2012.

				Rate per patient	Rate per isolate
Month	Total admissions	MDRO patients	MDRO isolates	𝑅 (95% CI)^a	𝑅 (95% CI)^a
January	2699	25	21	9.3 (4.8, 11.9)	7.8 (5.9, 11.9)
February	2506	19	16	7.6 (3.6, 10.4)	6.4 (4.4, 12.0)
March	2506	31	28	12.4 (7.6, 16.4)	11.2 (8.4, 17.6)
April	2561	9	7	2.7 (16.0, 28.1)	2.7 (1.2, 5.5)
May	2523	19	21	7.5 (4.4, 11.9)	8.3 (5.2, 12.7)
June	2488	10	11	4.0 (2.0, 7.2)	4.4 (2.0, 8.0)
July	2405	15	16	6.2 (3.3, 10.0)	6.7 (3.7, 10.8)
August	2150	13	16	6.0 (3.3, 10.2)	7.4 (4.2, 12.1)
September	2347	36	51	15.3 (10.7, 21.3)	21.7 (16.2, 28.2)
October	2255	40	51	17.7 (12.9, 23.9)	22.6 (16.9, 29.7)
November	2374	29	39	12.2 (8.0, 17.7)	16.4 (11.8, 22.3)
December	2431	33	42	13.6 (9.5, 18.9)	17.3 (12.3, 23.4)
Total	29245	315	329	10.8 (9.3, 12.4)	11.2 (9.7, 12.9)

aRate calculated per 1000 admissions.