Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Relationship between NeH2S level and persistency of AR symptoms
| NeH2S level (ppb) | AR persisting for more than 2 weeks per month (%, n = 51) | AR persisting for less than 2 weeks per month (%, n = 34) |
|---|---|---|
| 1 | 27.5% | 20.6% |
| 2 | 58.8% | 35.3% |
| 3 | 13.7% | 38.2% |
| 4 | 0% | 2.9% |
| ≥5 | 0% | 2.9% |
Abbreviations: AR, allergic rhinitis; NeH2S, nasal exhaled hydrogen sulfide.
