Research Article
Children Living near a Sanitary Landfill Have Increased Breath Methane and Methanobrevibacter smithii in Their Intestinal Microbiota
Table 1
Socioeconomic and environmental conditions of children living in the three distinct areas.
| | Slum near landfill group | Slum away from the landfill group | High socioeconomic group | | | | % | | % | | % |
| Brick house | 69a | 63.4% | 11b | 31.4% | 32c | 100.0% | <0.001 | Sewage network | 10a | 9.2% | 4a | 11.4% | 32b | 100.0% | <0.001 | Piped water | 60a | 55.5% | 23a | 65.7% | 32b | 100.0% | <0.001 | Regularized electricity | 70a | 64.9% | 1b | 2.9% | 32c | 100.0% | <0.001 | Paved street | 14a | 13.0% | 0a | 0.0% | 32b | 100.0% | <0.001 | Backyard of land | 39a | 36.1% | 15a | 42.9% | 0b | 0.0% | <0.001 | Pets | 52a | 48.1% | 8b | 22.9% | 18a | 46.1% | 0.019 | Income per capita >1/2 MW | 22a | 20.4% | 2a | 5.7% | 32b | 100.0% | <0.001 | Social class | | | | | | | | A | 0a | 0.0% | 0a | 0.0% | 9b | 26.5% | | B | 4a | 3.7% | 0a | 0.0% | 20b | 58.8% | | C | 67a | 62.0% | 17a | 48.6% | 5b | 14.7% | <0.001 | D | 31a | 28.7% | 18a | 51.4% | 0b | 0.0% | | E | 6a | 5.6% | 0a | 0.0% | 0b | 0.0% | |
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Chi-squared test: different letters on the line represent statistically significant differences ( < 0.05); MW = minimum wage.
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