Fig 1.
Flow diagram of the literature search.
Table 1.
The characters of included trials.
Table 2.
Summary of findings and strength of evidence in studies of the effects of intensive follow-up among patients with nonmetastatic colorectal cancer.
Fig 2.
Forest plot of overall survival of all trials.
df = degrees of freedom, M-H = Mantel-Haenszel.
Fig 3.
Funnel plot analysis of overall survival.
Table 3.
Subgroup analysis of the effect of intensive follow-up on overall survival.