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Table 1 Descriptive statistics of all socioeconomic characteristics considered across all census tracts

From: Urban slum structure: integrating socioeconomic and land cover data to model slum evolution in Salvador, Brazil

Census variables Minimum 1st quartile Median Mean 3rd quartile Maximum
Proportion of households:       
Without a bathroom* 0.000 0.000 0.006 0.022 0.018 0.598
Without garbage collection 0.000 0.964 0.998 0.938 1.000 1.000
Where garbage is thrown on an empty lot or street* 0.000 0.000 0.000 0.044 0.017 0.902
With more than 6 residents* 0.000 0.112 0.154 0.147 0.186 0.400
Connected to a sewer 0.000 0.004 0.023 0.154 0.168 1.000
With piped water * 0.000 0.910 0.972 0.923 0.996 1.000
With female head of household 0.011 0.320 0.376 0.375 0.430 0.747
Proportion of heads of households:       
With more than 8 years of education 0.040 0.344 0.500 0.526 0.725 0.968
That are illiterate 0.000 0.015 0.062 0.075 0.115 0.511
Census tracts where the:       
Average income of heads of households per month* 99.570 286.200 421.500 833.9 893.800 7978.000
Population density 0.000 210500 589800 1126000 1239000 124900000
  1. * Variables that met the linearity requirement and met the UN-HABITAT definition for urban slum.