Pretreatment Lymphocyte Monocyte Ratio Predicts Long-Term Outcomes in Patients with Digestive System Tumor: A Meta-Analysis

Table 1

Main characteristics of eligible studies.

Characteristics	Number of studies	Number of patients
All eligible studies	22	12829
Year of publication
2014	3	1272
2015	13	2951
2016	6	8606
Endpoint used
OS	18	11610
CSS	6	1770
DFS/RFS	13	8338
Method to get UVA HR
Reported	16	10853
Estimated	6	1976
Multivariate analysis
Performed	21	12527
Unperformed	1	302
Anatomic structure
Gastrointestinal tract	17	11340
Nongastrointestinal tract	5	1489
Tumor site
Esophagus	3	892
Stomach	3	1741
Colorectal	11	8707
Liver	2	660
Pancreas	3	829
Stage
NMS	11	9412
Mixed	3	1789
MS	8	1628
Ethnicity
Asian	16	11285
Non-Asian	6	1544
Cut-off value
<3.0	10	9272
≥3.0	12	3557
Treatment
With surgery	18	12210
No surgery	4	619

OS: overall survival; CSS: cancer-specific survival; DFS: disease-free survival; RFS: recurrence-free survival; UVA: univariate analysis; HR: hazard ratio; NMS: nonmetastatic stage; MS: metastatic stage.