Geometric mean and geometric standard deviation values for urinary 2-NAP and 1-OHP levels (μmol/mol creatinine) stratified by exposure to wood smoke and smoking
| Exposure category . | 2-NAP . | . | 1-OHP . | . | ||||
|---|---|---|---|---|---|---|---|---|
| . | N . | GM (GSD) (μmol/mol creatinine) . | N . | GM (GSD) (μmol/mol creatinine) . | ||||
| All | 253 | 4.01 (1.55) | 250 | 0.07 (1.14) | ||||
| Wood smoke | ||||||||
| Nonexposed | 67 | 1.35 (1.33)* | 66 | 0.03 (1.32)† | ||||
| Low | 86 | 4.51 (1.23) | 84 | 0.06 (1.19) | ||||
| High | 100 | 7.17 (1.24) | 100 | 0.13 (1.15) | ||||
| Cigarette | ||||||||
| Nonsmokers | 126 | 2.80 (1.24)* | 124 | 0.04 (1.28)* | ||||
| Smokers | 116 | 5.17 (1.22) | 115 | 0.08 (1.23) | ||||
| Nonexposed and nonsmokers | 43 | 0.91 (1.31) | 43 | 0.01 (1.34) | ||||
| Exposure category . | 2-NAP . | . | 1-OHP . | . | ||||
|---|---|---|---|---|---|---|---|---|
| . | N . | GM (GSD) (μmol/mol creatinine) . | N . | GM (GSD) (μmol/mol creatinine) . | ||||
| All | 253 | 4.01 (1.55) | 250 | 0.07 (1.14) | ||||
| Wood smoke | ||||||||
| Nonexposed | 67 | 1.35 (1.33)* | 66 | 0.03 (1.32)† | ||||
| Low | 86 | 4.51 (1.23) | 84 | 0.06 (1.19) | ||||
| High | 100 | 7.17 (1.24) | 100 | 0.13 (1.15) | ||||
| Cigarette | ||||||||
| Nonsmokers | 126 | 2.80 (1.24)* | 124 | 0.04 (1.28)* | ||||
| Smokers | 116 | 5.17 (1.22) | 115 | 0.08 (1.23) | ||||
| Nonexposed and nonsmokers | 43 | 0.91 (1.31) | 43 | 0.01 (1.34) | ||||