Table 5.

Differences in population coverage by MDA intervention between locality and ecological zone levels

MDA type	Threshold (%)	MDA unit		No. of target areas	100% coverage			75% coverage
					Population	MDA cost (US$)		Population	MDA cost (US$)
						1 year	5 years		1 year	5 years
Community-wide mass treatment	8.0	District		33	5,597,983	9,740,490	48,702,452	4,198,487	7,305,368	36,526,839
		EZ	Additional	17	2,206,414	3,839,160	19,195,800	1,654,810	2,879,370	14,396,850
			Unnecessary	17	− 1,657,006	− 2,883,190	− 14,415,949	− 1,242,754	− 2,162,392	− 10,811,962
			Total		6,147,391	10,696,461	53,482,303	4,610,543	8,022,345	40,111,727
		Difference			549,408	955,970	4,779,851	412,056	716,978	3,584,888
	15	District		14	2,008,024	3,493,962	17,469,809	1,506,018	2,620,471	13,102,357
		EZ	Additional	12	943,397	1,641,510	8,207,550	707,547	1,231,132	6,155,662
			Unnecessary	2	− 282,602	− 491,727	− 2,458,637	− 211,952	− 368,796	− 1,843,978
			Total		2,668,819	4,643,744	23,218,721	2,001,614	3,482,808	17,414,041
		Difference			660,795	1,149,782	5,748,912	495,596	862,337	4,311,684
Mass treatment for school-aged children	3	District		56	3,733,702	6,496,641	32,483,207	2,800,276	4,872,481	24,362,405
		EZ	Additional	8	202,500	352,349	1,761,747	151,875	264,262	1,321,310
			Unnecessary	32	− 900,103	− 1,566,179	− 7,830,895	− 675,077	− 1,174,634	− 5,873,171
			Total		3,036,099	5,282,812	26,414,058	2,277,074	3,962,109	19,810,544
		Difference			− 697,603	− 1,213,830	− 6,069,148	− 523,202	− 910,372	− 4,551,861
	5	District		41	2,625,068	4,567,618	22,838,092	1,968,801	3,425,714	17,128,569
		EZ	Additional	10	322,228	560,677	2,803,384	241,671	420,508	2,102,538
			Unnecessary	20	− 380,187	− 661,525	− 3,307,625	− 285,140	− 496,144	− 2,480,718
			Total		2,567,109	4,466,770	22,333,851	1,925,332	3,350,078	16,750,389
		Difference			− 57,959	− 100,848	− 504,241	− 43,469	− 75,636	− 378,181

Abbreviation: EZ, ecological zone