Figure 3
Highly elevated levels of CXCL1, but not IL8, associated with poor prognosis in stage IV human CRC. a–d Kaplan–Meier estimates of overall survival in stages IV (a, b) and II-III (c, d) CRC patients that were stratified according to normal (gray line; +/−), and upper-quartile (color line; ++) ranges of CXCL1 (a, c) or IL8 (b, d) levels. The patient numbers at risk (n) were as indicated for the groups.