Environmental Factors and Ventilation Affect Concentrations of Microorganisms in Hospital Wards of Southern Thailand

Table 1

MANOVA of bacterial and fungal concentrations by hospital ward and by sampling time.

Method	Source	Concentration	SS	df	MS	F
Biosampler	Ward	Bacteria	4353266.40	3	1451088.80	13.761	≤0.001
		Fungi	774011.64	3	258003.88	6.107	0.001
	Time	Bacteria	2766032.18	2	1383016.09	13.116	≤0.001
		Fungi	1359200.96	2	679600.48	16.086	≤0.001
Open plate	Ward	Bacteria	2348144.91	3	782714.97	30.900	≤0.001
		Fungi	22250.63	3	7416.88	8.688	≤0.001
	Time	Bacteria	593514.98	2	296757.49	11.716	≤0.001
		Fungi	38179.84	2	19089.92	22.362	≤0.001

Note: ; SS: sum of squares; df: degrees of freedom; MS: mean square.