Study on the Detection and Infection Distribution of Multidrug-Resistant Organisms in Different Specimens

Figures & data

Table 1 Detection Rate of MDRO in Different Specimens

Specimens		Sputum	Blood	Urine	Secretions	BALF	Other Sterile Body Fluids	Total	Statistical Value	P
CRAB	Positive strains	568	35	20	47	85	65	820
	Strains	949	51	43	69	95	82	1289
	Detection rate (%)	59.85	68.63	46.51	68.12	89.47	79.27	63.62	48.521	< 0.001
CRE	Positive strains	352	65	101	57	40	95	710
	Strains	2015	343	1180	465	95	631	4729
	Detection rate (%)	17.47	18.95	8.56	12.26	42.11	15.06	15.01	109.626	< 0.001
CRPA	Positive strains	276	12	16	22	18	27	371
	Strains	885	31	82	111	48	69	1226
	Detection rate (%)	31.19	38.71	19.51	19.82	37.50	39.13	30.26	15.395	0.009
MRSA	Positive strains	215	21	10	116	10	41	413
	Strains	340	37	22	292	14	57	762
	Detection rate (%)	63.24	56.76	45.45	39.73	71.43	71.93	54.20	45.492	< 0.001
Total	Positive strains	1411	133	147	242	153	228	2314
	Strains	4189	462	1327	937	252	839	8006
	Detection rate (%)	33.68	28.79	11.08	25.83	60.71	27.18	28.90	381.408	< 0.001
Statistical value		663.496	71.284	94.722	140.643	58.254	221.948	1438.159
P		< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001

Notes: The P value represents the comparison of detection rate of MDRO in different specimens.

Table 2 Proportion of MDRO Infection in Different Specimens

Specimens		Sputum	Blood	Urine	Secretions	BALF	Other Sterile Body Fluids	Total	Statistical Value	P
CRAB	Infected	463	34	14	39	75	61	686
	Positive	568	35	20	47	85	65	820
	Proportion of infection (%)	81.51	97.14	70.00	82.98	88.24	93.85	83.66	15.548	0.008
CRE	Infected	237	65	70	54	35	83	544
	Positive	352	65	101	57	40	95	710
	Proportion of infection (%)	67.33	100	69.31	94.74	87.50	87.37	76.62	59.023	< 0.001
CRPA	Infected	157	10	13	15	18	23	236
	Positive	276	12	16	22	18	27	371
	Proportion of infection (%)	56.88	83.33	81.25	68.18	100	85.19	63.61	25.488	< 0.001
MRSA	Infected	138	21	8	70	10	39	286
	Positive	215	21	10	116	10	41	413
	Proportion of infection (%)	64.19	100	80.00	60.34	100	95.12	69.25	34.104	< 0.001
Total	Infected	995	130	105	178	138	206	1752
	Positive	1411	133	147	242	153	228	2314
	Proportion of infection (%)	70.52	97.74	71.43	73.55	90.20	90.35	75.71	101.922	< 0.001
Statistical value		63.578	13.345	1.359	26.026	3.742	3.777	67.398
P		< 0.001	0.004	0.715	< 0.001	0.291	0.287	< 0.001

Notes: The P value represents the comparison of proportion of MDRO infection in different specimens.

Table 3 Infection Rate of MDRO in Different Specimens

Specimens		Sputum	Blood	Urine	Secretions	BALF	Other Sterile Body Fluids	Total	Statistical Value	P
CRAB	Infected	463	34	14	39	75	61	686
	Detected	32,390	13,094	11,221	6133	1416	9426	73,680
	Infection rate (%)	1.43	0.26	0.12	0.64	5.30	0.65	0.93	536.904	< 0.001
CRE	Infected	237	65	70	54	35	83	544
	Detected	32,390	13,094	11,221	6133	1416	9426	73,680
	Infection rate (%)	0.73	0.50	0.62	0.88	2.47	0.88	0.74	74.83	< 0.001
CRPA	Infected	157	10	13	15	18	23	236
	Detected	32,390	13,094	11,221	6133	1416	9426	73,680
	Infection rate (%)	0.48	0.08	0.12	0.24	1.27	0.24	0.32	109.437	< 0.001
MRSA	Infected	138	21	8	70	10	39	286
	Detected	32,390	13,094	11,221	6133	1416	9426	73,680
	Infection rate (%)	0.43	0.16	0.07	1.14	0.71	0.41	0.39	141.761	< 0.001
Total	Infected	995	130	105	178	138	206	1752
	Detected	32,390	13,094	11,221	6133	1416	9426	73,680
	Infection rate (%)	3.07	0.99	0.94	2.90	9.75	2.19	2.38	615.874	< 0.001
Statistical value		270.316	52.345	98.239	37.146	74.66	40.044	313.847
P		< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001

Notes: The P value represents the comparison of infection rate of MDRO in different specimens.

Table 4 Detection Rate of MDRO Infection in Different Specimens

Specimens		Sputum	Blood	Urine	Secretions	BALF	Other Sterile Body Fluids	Total	Statistical Value	P
CRAB	Number of infections	463	34	14	39	75	61	686
	Total number of inpatients	158,051	158,051	158,051	158,051	158,051	158,051	158,051
	Detection rate of infection (‰)	2.93	0.22	0.09	0.25	0.48	0.39	4.34	1296.757	< 0.001
CRE	Number of infections	237	65	70	54	35	83	544
	Total number of inpatients	158,051	158,051	158,051	158,051	158,051	158,051	158,051
	Detection rate of infection (‰)	1.50	0.41	0.44	0.34	0.22	0.53	3.44	297.98	< 0.001
CRPA	Number of infections	157	10	13	15	18	23	236
	Total number of inpatients	158,051	158,051	158,051	158,051	158,051	158,051	158,051
	Detection rate of infection (‰)	0.99	0.06	0.08	0.10	0.11	0.15	1.49	425.021	< 0.001
MRSA	Number of infections	138	21	8	70	10	39	286
	Total number of inpatients	158,051	158,051	158,051	158,051	158,051	158,051	158,051
	Detection rate of infection (‰)	0.87	0.13	0.05	0.04	0.06	0.25	1.81	261.002	< 0.001
Total	Number of infections	995	130	105	178	138	206	1752
	Total number of inpatients	158,051	158,051	158,051	158,051	158,051	158,051	158,051
	Detection rate of infection (‰)	0.63	0.08	0.07	0.11	0.09	0.13	1.11	2056.985	< 0.001
Statistical value		268.663	52.226	98.026	36.887	72.856	39.838	312.849
P		< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001	< 0.001

Notes: The P value represents the comparison of Detection rate of MDRO infection in different specimens.