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Table 1 Detection coverage of different mosquito larval habitat categories and types by community-owned resource persons (CORPs).

From: Community-based surveillance of malaria vector larval habitats: a baseline study in urban Dar es Salaam, Tanzania

Habitat Category Habitat Type Number detected Coverage by CORPs surveys*
   CORPs Inspectors Total Detected by CORPS (%) OR P
Natural Habitats
  Freshwater Swamp 10 15 25 40.0 1.00** NA**
  Mangrove Swamp 1 2 3 33.3 NE NE
  Marsh 21 29 50 42.0 1.09 [0.409–2.887] 0.868
  River bed 1 1 2 50.0 NE NE
  Seepage 36 25 61 59.0 2.16 [0.836–5.58] 0.112
  Subtotal: 69 72 141 48.9 1.00** NA**
Agricultural artificial habitats
  Ridge and furrow 20 47 67 29.9 0.64 [0.25–1.66] 0.357
  Rice paddy 16 19 35 45.7 1.26 [0.45–3.57] 0.660
  Other agriculture 17 53 70 24.3 0.48 [0.18–1.27] 0.139
  Subtotal: 53 119 172 30.8 0.46 [0.29–0.73] 0.001
Non-Agricultural artificial habitats
  Construction 38 43 81 46.9 1.33 [0.53–3.30] 0.544
  Drain 115 108 223 51.6 1.60 [0.69–3.71] 0.276
  Puddle 43 32 75 57.3 2.02 [0.80–5.07] 0.136
  Tyre track 28 18 46 60.9 2.33 [0.86–6.31] 0.095
  Water storage container 5 11 16 31.3 0.68 [0.18–2.56] 0.571
  Subtotal: 229 212 441 51.9 1.11 [0.76–1.63] 0.587
Uncategorized
  Other 67 165 232 28.9 0.61 [0.26–1.43] 0.252
  Subtotal 67 165 232 28.9 0.42 [0.27–0.65] <0.001
Total   418 568 986 42.4 NA NA
  1. * The proportion of all habitats found by the combined observations of the CORPs and the inspecting team that had previously been found by the CORPs. Odds ratios (OR) and P values for the likelihood of detection by the CORPs were determined by logistic regression, treating habitat category or type as a determinant of detection.
  2. ** Reference group
  3. NE Not estimated: excluded from logistic regression analysis because of insufficient observations.
  4. NA Not Applicable