Qualitative and Quantitative Microbiological Studies of Paediatric Artemether-Lumefantrine Dry Powders and Paracetamol Syrups Obtained from Selected Drug Stores in Accra, Ghana

Table 4

Relationship between the levels of contamination (TAMC) and presence of P. aeruginosa in the products packaged in amber glass bottles and PET bottles.

TAMC/Material Type/Disease-causing organisms	Observation	Wilcoxon Rank sum test	Expected frequency	p value
Material Type (Amber Glass Bottle)
P. aeruginosa
Absent	86	3949.5	3913	0.4597
Detected	4	145.5	182
Combined	90	4095	4095
Material Type (PET Bottle)
P. aeruginosa
Absent	75	2879	3000	0.0062
Detected	4	281	160
Combined	79	3160	3160

P< 0.05 means significant; P> 0.05 means not significant.