Results
A total of 13 studies (1, 6, 7, 16, 19, 36-43) were included in our
study (PRISMA flow diagram) based on the searched databases. Overall,
eight studies (1, 6, 7, 37, 39-41, 43) focused on the role of RDW and
the remaining five studies (16, 19, 36, 38, 42) focused on D-Dimer
levels in DLBCL patients. The included studies were published from 2015
to 2022. All included articles were retrospective cohorts. Eight studies
were conducted in China (7, 16, 19, 36, 38-40, 43) and others were
conducted in Croatia (41), Iraq (37), Japan (42), Peru (1), and Spain
(6). The total sample size of the meta-analysis was 3972 people (1252
and 2720 patients in the studies were related to prognostic roles of
D-Dimer and RDW in DLBCL patients, respectively) varying from 81 to 992
people in the included studies. Other details of the included studies
are shown briefly in Table 1.