a weak trendP = 0.051
PD-L2 High PD-L2 expression in 6 studies was associated with the MSI tumor (OR= 0.168, 95% CI = 0.051–0.55, P = 0.0033) and showed a weak trend toward the absence of lymphovascular invasion (OR = 0.71, 95% CI = 0.50–1.00, P = 0.051).