Review Article

Prognostic Value of MicroRNA-182 in Cancers: A Meta-Analysis

Table 1

Characteristics of the studies included in the meta-analysis.

AuthorYearCountryTypeSampleNumberMethodCutoffSurvivalHRMax follow-up (months)

Chen2014ChinaPancreaticPlasma109qRT-PCRYouden indexOS, DFSR60
Rapti2014GreeceColorectalFrozen tissue105 OSqRT-PCR65%OS, DFSR120
92 DFS
Wang2014ChinaColorectalFFPE138ISHScore = 3 (0–7)OSR96
Li2014ChinaPancreaticPrimary tissue38qRT-PCRMatched nontumor tissueOSSC36
Pignot2013FranceMIBCFrozen tissue72qRT-PCRNROS, RFSSC65
Kunder2013IndiaGroup 3 and 4 medulloblastomasFrozen tissue + FFPE37qRT-PCRLog2 (relative quantity)OSR60
Liu2013ChinaColorectalFrozen tissue148qRT-PCRMedianOSR89
McMillen2012USAGrade III or IV ovarianFFPE107ISHScore > 1.5 (0–3)OSR82
Zhu2011ChinaNSCLCFrozen tissue70qRT-PCRMedianOSR25
Jiang2010ChinaGliomaPE119qRT-PCRMedianOS(RR) R80
Stenvold2014NorwayNSCLCFFPE305ISHScore > 0 (0–3)DSSR234
Lei 2014ChinaBreastFresh tumor specimens38qRT-PCRMedianRFSSC50
Wang2012ChinaHCCFrozen tissue86qRT-PCRMedianDFSSC56
Schaefer2010GermanyProstateFrozen tissue75qRT-PCRMedianRFIR93
Casanova-Salasa2014SpainProstateFFPE272qRT-PCRLow/medium/highPFSSC189
Rodríguez-Gonzáleza2011NetherlandsER+ breastTissue246qRT-PCRDivided into quartersPFSSC24
Hiratab2012USABladderFFPE18qRT-PCRMedianOSSC120
Hiratab2013USAProstateFFPE52qRT-PCRMedianOSSC100

DFS: disease-free survival, DSS: disease-specific survival, ER: estrogen receptor, FFPE: formalin-fixed paraffin embedded tissues, HCC: hepatocellular carcinoma, HR: hazard ratio, ISH: in situ hybridization, MIBC: muscle-invasive bladder cancer, NR: not reported, NSCLC: nonsmall lung cancer, OS: overall survival, PFS: progression-free survival, R: reported, RFI: recurrence-free interval, RFS: relapse-free survival, RR: relative risk, and SC: survival curve.
aExcluded due to nondichotomy; b95% CIs of HR extracted from the Kaplan-Meier survival curves were not accurate (HR > 50, 95% CI: 0–∞).