Table 5 Proportional change in personal endotoxin exposures related to predictors (household and subject characteristics) in 45 children with asthma
From: Personal endotoxin exposure in a panel study of school children with asthma
| Household and subject characteristics | N or Mean (min-max) | Adjusted coefficient (95% CI)1,2 |
|---|---|---|
| Number of dogs | 1.31 (0 - 4) | 1.96 (1.43, 2.68)# |
| Residence of dogs | ||
| No dogs | 14 | 1.00 (referent) |
| Often Indoors | 8 | 1.20 (0.38, 3.78) |
| Occas. Indoors | 12 | 4.30 (1.50, 12.27)# |
| Outdoor Only | 11 | 2.41 (0.77, 7.55) |
| Number of cats | 0.69 (0 - 5) | 1.61 (1.19, 2.18)# |
| Residence of cats | ||
| No cats | 31 | 1.00 (referent) |
| Often Indoors | 10 | 2.99 (1.14, 7.89)** |
| Occas. Indoors | 2 | 3.56 (0.53, 23.79) |
| Outdoor Only | 2 | 2.51 (0.36, 17.57) |
| Number of residents | 4.75 (2 - 7) | 1.27 (0.97, 1.65)* |
| Carpeting | ||
| < 50% | 19 | 1.00 (referent) |
| ≥ 50% | 26 | 0.55 (0.22, 1.37) |
| Age of carpeting | ||
| < median years | 21 | 1.00 (referent) |
| ≥ median years | 18 | 1.95 (0.78, 4.86) |
| Frequency of carpet cleaning | ||
| Never/don't know | 11 | 1.00 (referent) |
| Every 3 years or more | 3 | 0.31 (0.05, 1.90) |
| More than every 3 years | 28 | 0.89 (0.31, 2.53) |
| Remove shoes in house | ||
| No | 41 | 1.00 (referent) |
| Yes, frequent exceptions | 2 | 0.56 (0.08, 4.15) |
| Yes, few or no exceptions | 2 | 0.61 (0.08, 4.70) |
| Cockroaches in the home | ||
| No | 29 | 1.00 (referent) |
| Yes | 16 | 1.54 (0.66, 3.58) |
| Rodents or droppings | ||
| No | 39 | 1.00 (referent) |
| Yes | 6 | 0.48 (0.15, 1.55) |
| Flooding damage | ||
| No | 28 | 1.00 (referent) |
| Yes | 17 | 4.48 (1.96, 10.26)# |
| Mold/mildew on surfaces | ||
| No | 12 | 1.00 (referent) |
| Yes | 33 | 1.34 (0.51, 3.54) |
| Livestock | ||
| No | 43 | 1.00 (referent) |
| Yes | 2 | 0.45 (0.06, 3.44) |
| Central air-conditioning | ||
| No | 7 | 1.00 (referent) |
| Yes | 38 | 0.55 (0.17, 1.81) |
| Sex | ||
| Female | 15 | 1.00 (referent) |
| Male | 30 | 0.43 (0.19, 0.99)** |
| Age | ||
| 13-18 years | 31 | 1.00 (referent) |
| 9-12 years | 14 | 1.18 (0.48, 2.90) |
| Race | ||
| White non-Hispanic | 14 | 1.00 (referent) |
| Hispanic | 23 | 0.39 (0.15, 1.05)* |
| Black | 8 | 0.77 (0.22, 2.68) |
| Mothers education | ||
| More than high school | 31 | 1.00 (referent) |
| High school or less | 14 | 1.23 (0.51, 2.97) |
| Family income | ||
| >50,000 | 21 | 1.00 (referent) |
| 30,000-50,000 | 11 | 1.96 (0.63, 6.11) |
| Up to $30,000 | 13 | 0.61 (0.24, 1.58) |
