Table 4. Microfilaraemia prevalences in two age groups in villages that received mass drug administration alone or combined with vector control, Tirukoilur, India.
| Treatment in villages | Age group | 1999–2002 |
2003–04 |
|
|---|---|---|---|---|
| % positive (number tested) | % positive (number tested) | |||
| Mass drug administration (MDA) alone | 2–5 | 0.9a (333) | 0.85a (353) | |
| MDA with vector control | 0a (379) | 0b (327) | ||
| MDA alone | 15–25 | 4.2c (334) | 3.3c,d (608) | |
| MDA with vector control | 1.5d (395) | 1.8d (621) |
a,b,c,d Data sharing the same superscript letter do not differ statistically significantly (based on χ² or Fisher’s exact test).