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. 2010 Jan 13;7(1):125–145. doi: 10.3390/ijerph7010125

Table 1.

Socioeconomic classes and environmental health inequality.

Environmental Variable SES Quintile Mean Coef. Std. Err. p-value 95%CI
Total waste generated (kg) Poorest 2,970 5,170 2,742 0.064 −307 10,647
Lower Middle Class 8,140 9,156 2,787 0.002 3,588 14,723
Middle Class 12,126 13,748 2,787 0.000 8,180 19,315
Upper Middle Class 16,718 8,439 2,838 0.004 2,769 14,108
Richest 11,409 - -
Per cap waste generation (kg/person/day) Poorest 0.340 0.067 0.040 0.103 −0.014 0.147
Lower Middle Class 0.407 0.139 0.041 0.001 0.057 0.220
Middle Class 0.478 0.104 0.041 0.014 0.022 0.186
Upper Middle Class 0.444 0.110 0.042 0.010 0.027 0.194
Richest 0.450 - - - - -
Proportion of waste collected (%) Poorest 0.073 −0.111 0.044 0.403 −0.057 0.139
Lower Middle Class 0.069 −0.217 0.045 0.044 0.003 0.201
Middle Class 0.089 −0.238 0.045 0.016 0.023 0.222
Upper Middle Class 0.195 −0.233 0.046 0.023 0.017 0.219
Richest 0.306 - - - - -
Proportion of waste uncollected (waste deposition) (%) Poorest 0.427 0.041 0.049 0.015 −0.110 −0.023
Lower Middle Class 0.432 0.102 0.041 0.000 −0.308 −0.127
Middle Class 0.411 0.123 0.050 0.000 −0.328 −0.148
Upper Middle Class 0.350 0.118 0.051 0.000 −0.325 −0.142
Richest 0.309 - - - - -
Proportion households using sewer disposal (%) Poorest 0.047 −0.193 0.039 0.000 −0.271 −0.115
Lower Middle Class 0.041 −0.227 0.040 0.000 −0.307 −0.148
Middle Class 0.067 −0.253 0.040 0.000 −0.333 −0.174
Upper Middle Class 0.101 −0.246 0.041 0.000 −0.327 −0.166
Richest 0.294 - - - - -
Proportion of households using non-sewer disposal (%) Poorest 0.453 0.099 0.036 0.008 0.027 0.171
Lower Middle Class 0.459 0.112 0.037 0.003 0.038 0.185
Middle Class 0.433 0.137 0.037 0.000 0.064 0.211
Upper Middle Class 0.421 0.131 0.038 0.001 0.056 0.206
Richest 0.322 - - - - -
Proportion of households using pit latrine services (%) Poorest 0.032 −0.008 0.011 0.454 −0.029 0.013
Lower Middle Class 0.024 −0.012 0.011 0.273 −0.033 0.010
Middle Class 0.020 0.013 0.011 0.231 −0.008 0.034
Upper Middle Class 0.045 −0.001 0.011 0.950 −0.022 0.021
Richest 0.031 - - - - -
Proportion of household using bucket/pan latrine services (%) Poorest 0.043 0.010 0.018 0.573 −0.025 0.045
Lower Middle Class 0.053 0.020 0.018 0.278 −0.016 0.055
Middle Class 0.063 0.028 0.018 0.127 −0.008 0.063
Upper Middle Class 0.071 0.001 0.018 0.949 −0.035 0.038
Richest 0.044 - - - - -
Proportion of households using facility in different house (%) Poorest 0.071 −0.021 0.009 0.021 −0.039 −0.003
Lower Middle Class 0.050 −0.028 0.009 0.003 −0.046 −0.010
Middle Class 0.043 −0.025 0.009 0.007 −0.043 −0.007
Upper Middle Class 0.046 −0.026 0.009 0.005 −0.045 −0.008
Richest 0.044 - - - - -
Proportion of households using public toilet services (%) Poorest 0.206 0.101 0.040 0.013 0.022 0.180
Lower Middle Class 0.149 0.133 0.040 0.002 0.052 0.213
Middle Class 0.186 0.096 0.116 0.020 0.015 0.176
Upper Middle Class 0.155 0.152 0.134 0.000 0.071 0.234

Richest 0.054 - - - - -