Skip to main content

Table 1 Characteristics of study villages and malariometric indices of individuals sampled into surveys done during short and long rain seasons, Nov/Dec 2005 – May/Jun 2007.

From: Epidemiology of malaria in an area prepared for clinical trials in Korogwe, north-eastern Tanzania

Strata, village name (observations)

Altitude, mean (range), m

Median SES score (IQR)

Median age (IQR), years

Bed net use, %

Parasite prevalence, %

Lowlands rural (4,434)

     

   Magunga cheke (566)

328 (286–377)

0.28 (-0.34, 0.78)

7.4(3.8, 11.5)

61.7

31.8

   Gereza east(455)

316 (278–333)

-0.11 (-0.53, 0.33)

8.2(4.8, 12.8)

47.0

57.1

   Kwagunda(1,057)

306 (270–328)

0.1 6(-0.45, 0.59)

6.8(3.9, 10.9)

40.7

33.5

   Mng'aza§(444)

334 (295–400)

-0.51 (-1.08, -0.11)

6.7(3.0, 11.8)

37.1

57.2

   Msambiazi(875)

349 (305–382)

-0.56 (-1.38, 0.30)

8.0(3.5, 13.3)

59.5

23.9

   Kwashemshi§(1,437)

409 (354–580)

-0.37 (-1.01, 0.17)

6.4(3.1, 10.8)

84.6

26.6

Lowlands urban (4,446)

     

   Masuguru (714)

322 (275–345)

1.38 (0.73, 1.96)

7.5(3.7, 12.0)

92.5

4.9

   Mtonga(2051)

341 (273–416)

0.58 (-0.14, 1.26)

7.4(3.9, 11.8)

66.9

11.8

   Kwasemangube(1681)

356 (310–494)

-0.04 (-0.60, 0.61)

7.2(3.8, 11.4)

49.3

13.4

Highlands (1,571)

     

   Magundi§(491)

638 (486–799)

-0.78 (-1.29, -0.27)

9.7(4.5, 13.4)

18.7

12.7

   Kwamhanya§(345)

761 (590–818)

-0.91 (-1.44, -0.15)

7.9(3.0, 13.3)

42.9

8.7

   Vugiri(735)

941(868–1043)

-0.59 (-1.03, -0.03)

7.4(3.7, 11.9)

49.3

12.0

  1. §Villages where febrile passive case detection using CORPs strategy was introduced in January 2006.