Spatial heterogeneity and temporal evolution of malaria transmission risk in Dakar, Senegal, according to remotely sensed environmental data

Table 4 Built-up area in 100- to 500-m radius buffers evaluated from 2007 SPOT image and associated with the 1994-97 anopheline aggressiveness.

	2007 SPOT-5 image (2.5 m degraded to 20 m)
	Coefficient	95% IC	p-value	Adjusted R²
Built-up area in 100-m radius buffer (per Ha)	-0.51	-0.73; -0.29	0.0001	0.49
Built-up area in 200-m radius buffer (per Ha)	-0.13	-0.18; -0.07	0.0001	0.51
Built-up area in 300-m radius buffer (per Ha)	-0.06	-0.07; -0.04	< 0.0001	0.57
Built-up area in 400-m radius buffer (per Ha)	-0.03	-0.04; -0.02	0.0001	0.53
Built-up area in 500-m radius buffer (per Ha)	-0.02	-0.02; -0.01	0.0004	0.44

Univariate linear regression. Twenty-three observations. Anopheline aggressiveness is quare root transformed.

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