Table 2.
Environmental exposures and atopic markers
| ICU | Non-ICU | P Value | |
|---|---|---|---|
| Exposure | |||
| Salivary cotinine ≥ LOD | 104 (64.6) | 465 (76.2) | <0.01 |
| Salivary cotinine < LOD | 42 (26.1) | 94 (15.4) | |
| Missing | 15 (9.3) | 51 (8.4) | |
| Salivary cotinine, mean (SD), pg/mL | 412 (794) | 767 (1,734) | 0.01 |
| Smoker in the home, yes | 34 (21.1) | 144 (23.6) | 0.54 |
| Ecat ≥ median | 81 (50.3) | 297 (48.7) | 0.67 |
| Ecat < median | 76 (47.2) | 301 (49.3) | |
| Missing | 4 (2.5) | 12 (2) | |
| Atopic markers | |||
| Allergen sensitization* | |||
| Cat dander | 77 (48) | 203 (33) | <0.001 |
| Dog dander | 90 (56) | 259 (42) | <0.01 |
| German cockroach | 11 (7) | 50 (8) | 0.74 |
| American cockroach | 32 (20) | 104 (17) | 0.44 |
| Dpter | 72 (45) | 207 (34) | <0.01 |
| Dfari | 73 (45) | 218 (36) | <0.05 |
| Ragweed | 45 (28) | 169 (28) | 0.84 |
| White oak | 52 (32) | 178 (29) | 0.58 |
| Alternaria | 75 (47) | 213 (35) | <0.01 |
| Aspergillus | 69 (43) | 199 (33) | <0.05 |
| Mouse | 29 (18) | 63 (10) | <0.01 |
| Season | <0.05 | ||
| Spring | 28 (17) | 148 (24) | |
| Summer | 24 (15) | 77 (13) | |
| Fall | 77 (48) | 309 (51) | |
| Winter | 32 (20) | 76 (13) | |
| No. of positive sIgE tests | <0.05 | ||
| 0 | 30 (19) | 153 (25) | |
| 1–2 | 16 (10) | 87 (14) | |
| ≥3 | 99 (62) | 300 (49) | |
| Missing | 16 (9) | 70 (12) |
Definition of abbreviations: Dfari = Dermatophagoides farinae; Dpter = Dermatophagoides pteronyssinus; Ecat = emissions attributable to carbon; ICU = intensive care unit; LOD = limit of detection; sIgE = specific immunoglobulin.
Data presented as n (%) unless otherwise noted.
*
sIgE to allergen is positive at > 0.35 kU/L.