Table 3. Quality of Artemisinin-Containing Antimalarials (ACAs) at 98 outlets visited during both mystery clients and overt sampling in Enugu, Nigeria.

	Sampling method
Variable	Mystery clients	Overt	p-value
Outlets	98 of 277 (35.4%)	98 of 119 (82.4%)
Samples	720	721
Brands	78 (72.9%)	72 (67.3%)	0.37
Acceptable quality	669 (92.9%)	665 (92.2%)	0.62
Substandard	35 (4.9%)	46 (6.4%)	0.21
Degraded	7 (1.0%)	5 (0.7%)	0.56
Falsified	9 (1.3%)	5 (0.7%)	0.28

Total number of brands purchased were 107