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Table 1 Characteristics of the study arms and the number of traps in each apartment

From: Gravid oviposition sticky trap and dengue non-structural 1 antigen test for early surveillance of dengue in multi-storey dwellings: study protocol of a cluster randomized controlled trial

  No. blocks Total No. of units (residential units) No. of floors in each block No. of floors with traps in each block No. of individual stairway leading to residential units No. traps in each block Total No. traps
Intervention
 Suria 8 767 (444) 5 2 6–8 12–16 114
 Harmoni 19 2380 (2356) 5 2 NA 6 114
 Park Avenue 2 316 (316) 17/18 6 NA 16–17 33
 Impian 6 668(660) 5 2 NA 6 36
Total 35 4131 (3776)      
Control
 Vista 15 920 (736) 5 1–2 5–7 3–5 66
 Lestari 9 2002 (1982) 5–15 2–6 NA 2–6 25
 Indah 2 120 (120) 5 2 NA 2 4
 Permai 12 1379 (1365) 5 2 NA 2–3 28
Total 38 4421 (4203)      
  1. No. Number, NA Not applicable