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. 2013 Oct 20;12:45. doi: 10.1186/1476-072X-12-45

Table 1.

Descriptive statistics of all socioeconomic characteristics considered across all census tracts

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

*Variables that met the linearity requirement and met the UN-HABITAT definition for urban slum.