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Table 2 Overview of the number of soil-transmitted helminth surveys

From: Bayesian geostatistical modelling of soil-transmitted helminth survey data in the People’s Republic of China

 

A. lumbricoides

T. trichiura

Hookworm

Number of surveys (percentage)

Location types

Village/town

842 (72.8)

822 (72.2)

838 (70.6)

County

315 (27.2)

316 (27.8)

349 (29.4)

Year of survey

2000-2004

739 (63.9)

737 (64.8)

775 (65.3)

2005-2010

418 (36.1)

401 (35.2)

412 (34.7)

Diagnostic method

Kato-Katz

1124 (97.2)

1112 (97.7)

1151 (97.0)

Stool sedimentation

3 (0.26)

3 (0.26)

3 (0.25)

Flotation methoda

16 (1.4)

16 (1.4)

19 (1.6)

Ether-concentrationb

1 (0.09)

1 (0.09)

1 (0.08)

Other diagnostic method

13 (1.1)

6 (0.53)

13 (1.1)

Observed prevalence (%)

<0.1

126 (10.9)

374 (32.9)

364 (30.7)

0.1-5.0

513 (44.3)

523 (46.0)

396 (33.4)

5.1-10.0

152 (13.1)

95 (8.4)

149 (12.6)

10.1-20.0

158 (13.7)

71 (6.2)

134 (11.3)

20.1-50.0

155 (13.4)

58 (5.1)

118 (10.0)

>50.0

53 (4.6)

17 (1.5)

26 (2.2)

Total

1,157 (100)

1,138 (100)

1,187 (100)

  1. aStool flotation method or McMaster salt flotation method.
  2. bFormalin ethyl acetate concentration method.