Table 2. Results of urine sample testing before and after treatment of NPF and Merck KgaA praziquantel with respect to gender.

Drug	Gender	Positive before treatment (no.)	Negative after treatment (no.)	Negative rate after treatment (% proportion)	Results of chi-square test (p-value)
NPF praziquantel	Male	37	37	100.00%	0.869
	Female	38	36	94.74%
Merck KgaA praziquantel	Male	47	45	95.74%	0.977
	Female	30	29	96.67%