Table 1. A summary of the demographic characteristics of 67 children investigated including their gender, age at baseline, and pre-treatment egg counts (average eggs per gram of feces determined by Kato-Katz) at each of the four annual treatment periods.
| Sample ID | School | Gender | Age at baseline | Year 1 | Year 2 | Year 3 | Year 4 |
| (EPG) | (EPG) | (EPG) | (EPG) | ||||
| TB2* | Nyamindi | M | 6 | 4320 | 6240 | 624 | 6144 |
| MK10* | Nyamindi | M | 6 | 1008 | 864 | 1656 | 2976 |
| TB9* | Nyamindi | M | 6 | 480 | 2784 | 1656 | 1296 |
| TB4* | Nyamindi | F | 6 | 9600 | 1512 | 2304 | 8448 |
| NG46 | Nyamindi | F | 7 | 48 | 96 | 288 | 0 |
| KB35 | Nyamindi | F | 7 | 72 | 48 | 192 | 96 |
| KB81 | Nyamindi | F | 8 | 72 | 0 | 48 | 0 |
| NG84 | Nyamindi | F | 8 | 69 | 26 | 48 | 3 |
| KR1 | Nyamindi | M | 8 | 72 | 2256 | 96 | 24 |
| NG126 | Nyamindi | M | 8 | 192 | 648 | 0 | 0 |
| NG11 | Nyamindi | F | 9 | 312 | 288 | 0 | 336 |
| NY67 | Nyamindi | F | 9 | 912 | 120 | 0 | 0 |
| NY77 | Nyamindi | M | 11 | 24 | 0 | 0 | 24 |
| TB15* | Kirogo | M | 6 | 2880 | 2304 | 168 | 1560 |
| TB120* | Kirogo | F | 6 | 9600 | 1512 | 96 | 600 |
| TB6* | Kirogo | M | 6 | 2400 | 432 | 216 | 2304 |
| TB132* | Kirogo | F | 6 | 960 | 1008 | 336 | 792 |
| KB18 | Kirogo | M | 7 | 432 | 0 | 168 | 96 |
| NY06 | Kirogo | F | 7 | 72 | 2256 | 768 | 96 |
| NY33 | Kirogo | F | 7 | 24 | 240 | 2256 | 0 |
| MU1 | Kirogo | M | 7 | 2664 | 336 | 336 | 0 |
| KB13 | Kirogo | F | 7 | 2784 | 0 | 336 | 0 |
| NY27 | Kirogo | F | 7 | 48 | 0 | 240 | 24 |
| NG24 | Kirogo | F | 7 | 1032 | 336 | 408 | 120 |
| NY68 | Kirogo | F | 8 | 864 | 120 | 144 | 120 |
| NY60 | Kirogo | F | 8 | 240 | 42 | 120 | 216 |
| KB19 | Kirogo | F | 9 | 0 | 120 | 0 | 0 |
| NG118 | Kirogo | F | 9 | 4992 | 168 | 0 | 24 |
| NY14 | Kirogo | F | 10 | 288 | 48 | 0 | 264 |
| KB18 | Kirogo | M | 11 | 24 | 0 | 0 | 48 |
| TB10* | Ngurubani | F | 6 | 480 | 192 | 336 | 288 |
| TB19* | Ngurubani | M | 6 | 8160 | 7776 | 432 | 768 |
| TB3* | Ngurubani | F | 6 | 1440 | 1344 | 4320 | 6096 |
| NG77 | Ngurubani | F | 7 | 72 | 240 | 432 | 0 |
| NG116 | Ngurubani | F | 8 | 144 | 432 | 0 | 432 |
| NY76 | Ngurubani | M | 8 | 120 | 768 | 0 | 648 |
| NG39 | Ngurubani | F | 8 | 72 | 24 | 48 | 0 |
| NG74 | Ngurubani | F | 8 | 336 | 216 | 26 | 0 |
| NY49 | Ngurubani | F | 9 | 264 | 288 | 0 | 72 |
| KB21 | Ngurubani | M | 9 | 0 | 360 | 0 | 0 |
| NY66 | Ngurubani | M | 10 | 312 | 0 | 0 | 0 |
| NG71 | Ngurubani | F | 10 | 1872 | 0 | 0 | 48 |
| NG110 | Ngurubani | M | 10 | 192 | 48 | 0 | 408 |
| NY44 | Ngurubani | M | 11 | 96 | 0 | 0 | 0 |
| NG109 | Mukou | F | 6 | 72 | 240 | 168 | 1128 |
| TB130* | Mukou | M | 6 | 2400 | 7680 | 192 | 2328 |
| TB14* | Mukou | M | 6 | 2880 | 432 | 264 | 2040 |
| MK4* | Mukou | F | 6 | 1128 | 2352 | 2304 | 3024 |
| MK12* | Mukou | F | 6 | 4320 | 6360 | 2304 | 1320 |
| NG41 | Mukou | M | 7 | 264 | 0 | 168 | 0 |
| NY112 | Mukou | F | 7 | 369 | 0 | 2784 | 48 |
| M51 | Mukou | F | 7 | 24 | 432 | 1008 | 168 |
| NG11 | Mukou | M | 7 | 312 | 192 | 384 | 24 |
| NY39 | Mukou | M | 7 | 1128 | 0 | 432 | 384 |
| NG33 | Mukou | F | 7 | 144 | 360 | 264 | 216 |
| NG45 | Mukou | F | 7 | 384 | 48 | 192 | 240 |
| KB67 | Mukou | M | 8 | 24 | 48 | 24 | 0 |
| KR56 | Mukou | F | 8 | 264 | 0 | 48 | 0 |
| NY15 | Mukou | M | 8 | 72 | 24 | 72 | 144 |
| NY78 | Mukou | F | 8 | 528 | 144 | 72 | 0 |
| NY34 | Mukou | F | 8 | 336 | 72 | 96 | 120 |
| NY35 | Mukou | F | 8 | 864 | 384 | 120 | 672 |
| NG128 | Mukou | F | 9 | 48 | 96 | 0 | 24 |
| NY39 | Mukou | M | 9 | 48 | 288 | 0 | 0 |
| NY45 | Mukou | F | 9 | 48 | 408 | 0 | 0 |
| KR38 | Mukou | M | 10 | 168 | 0 | 0 | 0 |
| NY17 | Mukou | F | 10 | 384 | 0 | 0 | 1872 |