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Table 1 Variance in mean NDVI by planning and drainage typology within Kisumu and Malindi, Kenya.

From: Linking field-based ecological data with remotely sensed data using a geographic information system in two malaria endemic urban areas of Kenya

  Grids (n) Mean NDVI† Standard deviation
Drainage typology    
  Kisumu*
Planned, well drained 10 121.3 21.48
Planned, poorly drained 12 117.2 4.01
Unplanned, well drained 10 111.0 11.01
Unplanned, poorly drained 10 123.1 28.96
Total 42 121.3 18.12
  Malindi*
Planned, well drained 11 141.9 10.67
Planned, poorly drained 10 137.1 16.70
Unplanned, well drained 2 105.5 1.47
Unplanned, poorly drained 11 116.9 13.05
Total 34 128.0 17.19
  1. †Estimated means based on weighted data at grid cell level. *No significant correlation between NDVI and drainage typology for either Kisumu or Malindi (Kisumu: n = 4, Spearman r = 0.20, P-value = 0.80; Malindi: n = 4, Spearman r = -0.80, P-value = 0.20)