Table 3.
Immature Aedes indicators by Premise Condition Index (PCI) ranking over different seasons
| PCI score | Number of houses (%) | Houses positive for Aedes larvae or pupae (%) | Number of containers (%) | Number of containers positive | Number of Aedes pupae | Mean pupae per house (SD, minimum–maximum) |
|---|---|---|---|---|---|---|
| All time points combined (n = 30 clusters) | ||||||
| 3 | 30 (1) | 12 (40) | 179 (1) | 32 | 991 | 33 (145, 0–791) |
| 4 | 138 (6) | 59 (43) | 723 (5) | 109 | 887 | 6 (22, 0–166) |
| 5 | 623 (26) | 250 (40) | 3,548 (26) | 431 | 5,739 | 9 (105, 0–2,580) |
| 6 | 1,178 (49) | 578 (49) | 7,016 (52) | 1,060 | 8,588 | 7 (27, 0–585) |
| 7 | 327 (14) | 167 (51) | 1,610 (12) | 283 | 1,450 | 4 (12, 0–97) |
| 8 | 71 (3) | 35 (49) | 283 (2) | 56 | 286 | 4 (13, 0–81) |
| 9 | 9 (0) | 2 (22) | 46 (0) | 3 | 9 | 1 (2, 0–5) |
| Missing | 24 (1) | 11 (46) | 124 (1) | 18 | 49 | 2 (5, 0–16) |
| Total | 2,400 (100) | 1,102 (46) | 13,529 (100) | 1,992 | 17,999 | 7 (60, 0–2,580) |
| October 2015 (heavy rain season): control at baseline (n = 10 clusters) | ||||||
| 3 | 3 (1) | 1 (33) | 18 (1) | 2 | 11 | 4 (6, 0–11) |
| 4 | 31 (8) | 12 (39) | 117 (8) | 23 | 92 | 3 (9.6, 0–50) |
| 5 | 126 (32) | 51 (40) | 483 (31) | 78 | 594 | 5 (15, 0–129) |
| 6 | 183 (46) | 72 (39) | 726 (47) | 105 | 759 | 4 (11, 0–82) |
| 7 | 41 (10) | 18 (44) | 142 (9) | 28 | 205 | 5 (12, 0–59) |
| 8 | 11 (3) | 3 (27) | 33 (2) | 7 | 3 | 0 (1, 0–3) |
| 9 | 0 (0) | 0 (0) | 0 (0) | 0 | 0 | – |
| Missing | 5 (1) | 4 (80) | 25 (2) | 4 | 12 | 2 (5, 0–12) |
| Total | 400 (100) | 161 (40) | 1,544 (100) | 247 | 1,676 | 4 (12, 0–129) |
| February 2016 (dry season) (n = 10 clusters) | ||||||
| 3 | 3 (1) | 1 (33) | 35 (1) | 10 | 124 | 41 (72, 0–124) |
| 4 | 14 (4) | 6 (43) | 169 (5) | 10 | 98 | 7 (24, 0–91) |
| 5 | 187 (47) | 59 (32) | 1,517 (42) | 136 | 653 | 3 (10, 0–89) |
| 6 | 161 (40) | 62 (39) | 1,584 (44) | 167 | 947 | 6 (19, 0–131) |
| 7 | 23 (6) | 10 (43) | 224 (6) | 17 | 81 | 4 (8, 0–26) |
| 8 | 6 (2) | 3 (50) | 46 (1) | 8 | 18 | 3 (7, 0–18) |
| 9 | 3 (1) | 0 (0) | 22 (1) | 0 | 0 | 0 (0, 0–0) |
| Missing | 3 (1) | 1 (33) | 23 (1) | 2 | 0 | 0 (0, 0–0) |
| Total | 400 (100) | 142 (36) | 3,620 (100) | 350 | 1,921 | 5 (16, 0–131) |
| June 2016 (light rain season) (n = 10 clusters) | ||||||
| 3 | 4 (1) | 2 (50) | 16 (1) | 5 | 6 | 2 (3, 0–6) |
| 4 | 32 (8) | 20 (63) | 152 (6) | 33 | 272 | 9 (22, 0–121) |
| 5 | 54 (14) | 33 (61) | 364 (15) | 53 | 607 | 11 (29, 0–148) |
| 6 | 230 (58) | 174 (76) | 1,480 (61) | 342 | 2,741 | 12 (35, 0–330) |
| 7 | 78 (20) | 52 (67) | 411 (17) | 86 | 296 | 4 (11, 0–71) |
| 8 | 2 (1) | 1 (50) | 5 (0) | 1 | 0 | 0 (0, 0–0) |
| 9 | 0 (0) | 0 (0) | 0 (0) | 0 | 0 | – |
| Missing | 0 (0) | 0 (0) | 0 (0) | 0 | 0 | – |
| Total | 400 (100) | 282 (71) | 2,428 (100) | 520 | 3,922 | 10 (30, 0–330) |
| October 2016 (heavy rain season) (n = 10 clusters) | ||||||
| 3 | 4 (1) | 1 (25) | 40 (2) | 2 | 32 | 8 (16, 0–32) |
| 4 | 13 (3) | 7 (54) | 99 (4) | 15 | 115 | 9 (26, 0–92) |
| 5 | 42 (11) | 19 (45) | 250 (10) | 33 | 180 | 4 (15, 0–91) |
| 6 | 280 (70) | 96 (34) | 1,698 (70) | 146 | 807 | 3 (9, 0–96) |
| 7 | 56 (14) | 20 (36) | 312 (13) | 30 | 98 | 2 (5, 0–25) |
| 8 | 4 (1) | 4 (100) | 26 (1) | 7 | 13 | 3 (4, 0–9) |
| 9 | 1 (0) | 0 (0) | 4 (0) | 0 | 0 | 0 (0, 0–0) |
| Missing | 0 (0) | 0 (0) | 0 (0) | 0 | 0 | – |
| Total | 400 (100) | 147 (37) | 2,429 (100) | 233 | 1,245 | 3 (10, 0–96) |