Table 1

Expression of COX-2 in 172 SCCs and in 27 ADCs of the esophagus as determined by immunohistochemistry

A. Percentage of positive tumor cellsa
01234
SCC1639363843
ADC63567
B.Staining intensityb
01+2+
SCC1610947
ADC6714
C.Immunoreactive scorec
012345678
SCC163034382911734
ADC622725201
  • a Percentage of positive cells: 0, 0–4%; 1, 5–24%; 2, 25–49%; 3, 50–74%; 4, 75–100%.

  • b Staining intensity: 0, negative; 1+, weak; 2+, strong.

  • c Immunoreactive score: combination of a and b (see “Materials and Methods”).