highly significantP =0.0007
However, there was a highly significant association between CD9 expression and tumour grade ( P =0.0007).
However, there was a highly significant association between CD9 expression and tumour grade ( P =0.0007).
Subgroup analysis By contrast to tumours expressing only membranous CD9, the 23 tumours with both membranous and cytoplasmic staining showed a trend toward significant association with tumour stage ( P =0.08) (95% CI 3.5–86) and disease failure ( P =0.083) (95% CI −1.7–57), while the association with tumour grade (G1 vs G2–3) was less strong ( P =0.025 vs 0.0006) (95% CIs 11–68 vs 10–37).
If CD9 is to be considered for clinical used in the future, that might add an additional 18 pound sterling to the patient's bill (which is an almost insignificant cost).