House-Level Risk Factors for Aedes aegypti Infestation in the Urban Center of Castilla la Nueva, Meta State, Colombia

Table 2

Frequencies (n, %) of environmental factors associated with identifying positive houses with immature stages of A. aegypti (PR, 95% CI; χ²) and in the presence of positive ovitraps (PR, 95% CI; χ²).

Variables	n (%)	Positive houses				Positive ovitraps
		Yes	No	PR (95% CI)	χ^2	Yes	No	PR (95% CI)	χ^2
Housing type
House	236 (76.9)	90	146	2.26 (1.31, 3.87)	10.2	189	47	1.09 (0.94, 1.28)	1.14
Apartment	71 (23.1)	12	59	1.00		52	19	1.00
Wall type
Cement	289 (94.1)	97	192	1.00	2.04	226	63	1.00	5.63
Plastic fiber	1 (0.3)	0	1	0		1	0	1.28 (1.20, 1.35)
Wood	14 (4.6)	5	9	1.08 (0.52, 2.22)		13	1	1.19 (1.02, 1.40)
Zinc sheet	3 (1)	0	3	0		1	2	0.42 (0.09, 2.09)
Floor type
Tile	276 (89.9)	93	183	1.00	2.54	215	61	1.00	7.39
Cement	26 (8.5)	9	17	1.05 (0.60, 1.82)		24	2	1.18 (1.04, 1.34)
Land	5 (1.6)	0	5	0		2	3	0.51 (0.17, 1.48)
Roof type
Eternit roof tile	289 (94.1)	97	192	1.2 (0.56, 2.59)	0.06	226	63	0.94 (0.76, 1.16)	0.05
Zinc tile	18 (5.9)	5	13	1.00		15	3	1.00
Concrete washbasins (water tanks or low tank)
Yes	269 (87.6)	95	174	1.92 (0.96, 3.82)	3.56	215	54	1.17 (0.93, 1.46)	1.97
No	38 (12.4)	7	31	1.00		26	12	1.00
Other types of water container
Yes	113 (36.8)	33	80	0.82 (0.58, 1.16)	1.03	85	28	0.94 (0.82, 1.06)	0.85
No	194 (63.2)	69	125	1.00		156	38	1.00
More than one water container
Yes	75 (24.4)	26	49	1.06 (0.70, 1.61)	0.09	59	16	1.01 (0.62, 1.63)	0.001
No	232 (75.6)	76	156	1.00		182	50	1.00
House maintenance
Well maintained	264 (86)	84	180	1.00	2.70	200	64	1.00	8.43
Moderately maintained	25 (8.1)	12	13	1.50 (0.97, 2.34)		24	1	1.25 (1.13, 1.38)
Poor maintained	18 (5.9)	6	12	1.00 (0.51, 1.97)		17	1	1.22 (1.07, 1.39)
Patio (backyard) condition
Tidy	123 (40.1)	39	84	1.00	0.22	63	60	1.00	90.5
Moderately tidy	109 (35.5)	37	72	1.03 (0.74, 1.44)		105	4	1.40 (1.27, 1.55)
Untidy	75 (24.4)	26	49	1.06 (0.74, 1.52)		73	2	1.34 (1.23, 1.47)
Shadow in the patio
<25%	20 (6.5)	9	11	1.00	1.68	1	19	1.00	68.7
25–50%	83 (27)	29	54	1.07 (0.76, 1.52)		68	15	1.06 (0.94, 1.20)
>50%	204 (66.4)	64	140	0.85 (0.62, 1.18)		172	32	1.26 (1.09, 1.46)

Bold number and asterisk represent statistical significance of  < 0.05.