Table 2.

Effect of blocking treatment of MEED and SEED cases by ZSP, CT, and PLACEBO after three year medication

Group		No. subjects	EC Diagnosed			Incidence Rates (%)	Block Rates (%)
			EBC Re-screening	Registration	Total
MEE	Treatment	1566	10	18	28	1.79
	Control	3780	26	58	84	2.22
	Total	5346	36	76	112	2.10	19.37
SEED	Treatment	1396	17	11	28	2.01
	Control	3649	36	66	102	3.85
	Total	4045	53	77	130	3.21	47.79