Table 2 Characteristics of surveys included in the lymphatic filariasis database

Current endemic countries

37

9

22

4

72

Countries with data

35

9

25

16

85

Number of surveys identified

5,468

1,764

1,322

479

9,033

Non-community data

673 (12.3)

246 (13.9)

201 (15.2)

43 (9.0)

1,163 (12.9)

Geopositioned

4,624 (84.6)

1,320 (74.8)

1058 (80.0)

418 (87.3)

7,420 (82.1)

Not geopositioned

171 (3.1)

198 (11.2)

63 (4.8)

18 (3.8)

432 (5.0)

Surveys by period

before 1990

1,157 (25.0)

688 (52.1)

774 (73.2)

316 (75.6)

2,935 (39.6)

1990-2000

441 (9.5)

146 (11.1)

116 (11.0)

70 (16.7)

773 (10.4)

2000-2010

2,040 (44.1)

486 (36.8)

159 (15.0)

32 (7.7)

2,717 (36.6)

2010-now

937 (20.3)

-

9 (0.9)

-

946 (12.7)

Unknown

49 (1.1)

-

-

-

49 (0.7)

Type of survey

Mapping/prevalence

3,875 (83.8)

924 (70.0)

954 (90.2)

400 (95.7)

6,153 (82.9)

SS/Spot check

749 (16.2)

280 (21.2)

94 (8.9)

18 (4.3)

1,141 (15.4)

TAS

-

6 (0.5)

10 (0.9)

-

16 (0.2)

Passive recording

-

110 (8.3)

-

-

110 (1.5)

Diagnostic method

Clinical

24 (0.5)

119 (9.0)

5 (0.5)

1 (0.2)

149 (2.0)

Parasitological

1,939 (41.9)

1,086 (82.3)

892 (84.3)

370 (88.5)

4,287 (57.8)

Serological

2,423 (52.4)

69 (5.2.)

114 (10.8)

30 (7.2)

2,636 (35.5)

Other

238 (5.1)

46 (3.5)

47 (4.4)

17 (4.1)

348 (4.7)

MDA Implemented

Unknown

19 (0.6)

36 (2.7)

-

18 (4.3)

84 (1.1)

Pre-intervention

3,918 (84.7)

827 (62.7)

558 (52.7)

312 (74.6)

5,615 (75.7)

Post-intervention

676 (14.6)

457 (34.6)

500 (47.3)

88 (21.1)

1,721 (23.2)