Table 3:
Geometric mean (GM) and geometric standard error (GSE) for inhalable airborne dust endotoxin concentration (EU/m3) and endotoxin load in reservoir dust (EU/m2) by intervention group and over visits for the LEIP Study households
| Air endotoxin (EU/m3) | Endotoxin load in dust (x 103 EU/m2) |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| CBB | CBF | KNF a | PAF | ||||||||
| Study Group | Visit | N | GM (GSE) | N | GM (GSE) | N | GM (GSE) | N | GM (GSE) | N | GM (GSE) |
| Educational Intervention | 1 | 45 | 7.2 (1.7) | 45 | 8.4 (3.7) | 46 | 13.1 (11.7) | 45 | 40.6 (19.4) | 46 | 13.0 (7.3) |
| 2 | 43 | 6.6 (1.8) | 45 | 6.1 (4.9) | 46 | 10.3 (5.7) | 44 | 34.5 (18.1) | 46 | 12.5 (12.7) | |
| 3 | 45 | 5.4 (2.2) | 45 | 8.1 (3.5) | 46 | 14.9 (8.3) | 45 | 46.0 (23.3) | 46 | 9.5 (4.3) | |
| 4 | 43 | 7.2 (1.7) | 43 | 8.9 (3.0) | 44 | 17.0 (8.7) | 43 | 55.1 (21.9) | 43 | 12.6 (4.7) | |
| Extensive Intervention | 1 | 38 | 6.2 (1.7) | 40 | 7.7 (2.7) | 40 | 12.2 (7.1) | 39 | 29.7 (11.8) | 40 | 13.6 (29.2) |
| 2 | 37 | 4.3 (1.0) | 39 | 6.0 (3.7) | 40 | 8.6 (5.7) | 39 | 28.4 (8.0) | 40 | 7.4 (3.3) | |
| 3 | 37 | 4.6 (1.0) | 40 | 7.3 (2.6) | 40 | 8.4 (2.6) | 39 | 33.4 (18.4) | 40 | 10.6 (26.1) | |
| 4 | 36 | 6.8 (1.7) | 38 | 10.9 (2.1) | 38 | 9.8 (2.7) | 37 | 41.1 (11.1) | 38 | 10.6 (10.1) | |
Abbreviations: LEIP, Louisa Environmental Intervention Project; GM, geometric mean; GSE, geometric standard error; EU, endotoxin units; CBB, child bedroom bedding; CBF, child bedroom floor; PAF, play area floor; KNF, kitchen floor.
a
For KNF, endotoxin load was expressed as EU per sample.