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. 2016 Nov 7;7(49):81621–81633. doi: 10.18632/oncotarget.13154

Table 1. Characteristics of studies included for meta-analysis of miRNA expression in ovarian cancer.

Author (year) Country Ethnicity Period No. of sample (T/N) Cancer subtype Sample source Method Total miRNAs Cut-off criteria
Iorio(2007) [17] USA Caucasian NA 69/15 31 serous, 8 endometrioid, 4 clear cell, 9 poorly differentiated, 1 mucinous carcinoma. Frozen tissue Microarray 235 p<0.01 and FC>3
Nam(2008) [18] Korea Asian 2000.12-2003.9 20/8 20 serous ovarian carcinoma Frozen tissue Microarray 314 FC>2
Dahiya (2008) [19] USA Caucasian NA 34/1a 31 serous, 2 clear cell, 1 borderline carcinoma Frozen tissue Microarray 462 FC>2
Yang (2008) [20] USA Caucasian NA 10/10a 10 serous ovarian carcinomas Frozen tissue Microarray 515 FC>1
Wyman (2009) [21] USA Caucasian NA 33/4a 19 serous, 4 clear cell 10 endometrioid carcinoma Frozen tissue Sequencing 498 FC>4
Resnick (2009) [22] USA Caucasian NA 28/15 17 serous, 6 clear cell, 3 endometrioid, 2 mucinous carcinoma Frozen tissue Microarray 365 FC>1.5
Kim (2010) [23] Korea Asian NA 54/49b 29 serous, 11 mucinous, 7 endometrioid, 7 clear cell carcinoma Frozen tissue Microarray 739 p<0.01
Elgaaen (2014)a [24] Norway Caucasian 2003-2012 35/9 35 high-grade serous carcinoma Frozen tissue Microarray 1105 p<0.01
Elgaaen (2014)b [24] Norway Caucasian 2003-2012 19/9 19 clear cell carcinoma Frozen tissue Microarray 1105 p<0.01
Dong (2014) [25] China Asian 2008.4~2012.7 5/5 5 high-grade serous carcinoma Frozen tissue Microarray 2064 FC>2 and p<0.05
LI (2014) [26] China Asian NA 100/50 100 serous carcinoma PPFE Microarray 739 FC>2
Shapira (2014) [27] USA Caucasian NA 42/36 42 serous carcinoma Plasma Microarray 754 FC>2
Wang (2014) [28] China Asian NA 48/15 29 serous, 6 mixed epithelial, 6 endometrioid, 1 adenocarcinoma, 4 clear cells, 2 mucinous carcinoma Frozen tissue High throughput PCR 1757 FC>1.5
Ibrahim (2015) [29] Malaysia Asian 2006-2013 22/22 22 serous ovarian carcinoma Frozen tissue Microarray 85 FC>2
a

Immortalized human ovarian surface epithelial cells were used as control.

b

Benign tumors were used as control.

FFPE, formalin-fixed paraffin-embedded; FC, fold change; NA, not available.