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.
Serum kynurenine (kyn) to tryptophan (trp) ratio (median, interquartile range) in subjects who smoke daily or irregularly currently and current non-smokers
| Kyn/trp (µmol/mmol) | Current daily or irregular smokers | n | Current non-smokers | n | P |
|---|---|---|---|---|---|
| All | 26·5 (23·5–31·4) | 120 | 30·6 (26·2–37·6) | 497 | < 0·0001 |
| Female | 26·8 (23·9–31·0) | 61 | 30·2 (25·9–37·3) | 303 | < 0·0001 |
| Male | 26·0 (23·1–31·9) | 59 | 31·9 (26·8–37·7) | 194 | < 0·0001 |
Statistics: Mann–Whitney U-test.
