Independent parameters associated with H2S in sputum and serum using multiple linear regression analysis*
| Risk factor | β value | 95% CI | p Value | R2 |
|---|---|---|---|---|
| Sputum H2S | 0.563 | |||
| FEV1%predicted | −0.499 | −0.900 to −0.099 | 0.016 | |
| Sputum neutrophils | 0.271 | 0.066 to 0.476 | 0.011 | |
| Sputum IL-8 | 0.016 | 0.004 to 0.028 | 0.012 | |
| Serum H2S | 0.263 | |||
| FEV1%predicted | −0.621 | −1.179 to −0.063 | 0.029 |
n=128.
*Adjusted for age, gender, height, weight, and smoking status.