Table 3

Distribution of geohelminths by year
Year
 No. of samples studied n = 2062
 No. of positive samples number (%) Total 189
 Mixed infection Total 29
 Percent distribution








A. lumbricoides
 T. trichiura
 Hookworm








Range
 AM/GM
 L
 M
 H
 Range
 AM/GM
 L
 M
 H
 Range
 AM/GM
 L
 M
 H
1999
 103
 09(8.7)
 2
 356 – 88596
 31532/554
 33.3
 33.3
 33.3
 112 – 1212
 460/128
 66.6
 33.3
 -
 4656 – 8564
 6632/1121
 -
 -
 100.0
2000
 127
 12(9.4)
 3
 578 – 99624
 26505/897
 42.8
 14.2
 42.8
 102 – 924
 523/108
 100.0
 -
 -
 4438 – 5172
 4877/3284
 -
 -
 100.0
2001
 173
 12(6.9)
 6
 412 – 110124
 41262/3979
 37.5
 25.0
 37.5
 88 – 1278
 614/175
 80.0
 20.0
 -
 2516 – 5554
 2632/1169
 -
 80.0
 20.0
2002
 304
 24(7.9)
 6
 456 – 112342
 42783/4708
 84.6
 15.3
 -
 48 – 720
 402/177
 100.0
 -
 -
 1302 – 4122
 2327/1432
 33.3
 44.4
 22.2
2003
 451
 38(8.4)
 5
 162 – 6778
 2477/1251
 95.8
 4.1
 -
 24 – 578
 375/155
 100.0
 -
 -
 226 – 4664
 1879/1191
 57.1
 23.8
 19.0
2004
 653
 59(9.0)
 5
 24 – 4762
 2033/352
 100.0
 -
 -
 28 – 234
 78/69
 100.0
 -
 -
 232 – 5236
 3008/2054
 63.6
 18.1
 18.1
2005*
 251
 35(13.9)
 2
 138 – 4654
 368/212
 100.0
 -
 -
 78 – 172
 -
 100.0
 -
 -
 412 – 912
 530/47
 100.0
 -
 -

• *Up to May

• Intensities are defined according to WHO Criteria (Montresor A et al, 1998)

• Note: Percentages are given in parenthesis.

• L – Light; M – Moderate; H – Heavy infection.

Mukhopadhyay et al. BMC Public Health 2008 8:98   doi:10.1186/1471-2458-8-98