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Table 1 Characteristics of the included studies

From: Long non-coding RNA SNHG15 in various cancers: a meta and bioinformatic analysis

First author Year Country Cancer type Sample Sample size (high/low) Cut-off value Method Survival HR availability HR(95%CI) P value Follow-up months NOS
Chen 2016 China gastric cancer tissue 106 (53/53) Median qRT-PCR OS/DFS reported 2.928 (1.304–6.575) 0.009 / 40 8
2.399 (1.377–4.177) 0.002
Zhang 2016 China HCC tissue 152 (77/75) Median qRT-PCR OS reported 2.247 (1.331–6.255) 0.001 70 7
Cui 2018 China lung cancer tissue 55 (27/28) NM qRT-PCR OS reported 2.234 (1.033–4.829) 0.041 80 7
Dong 2018 China NSCLC tissue 49 (23/26) Mean qRT-PCR OS/DFS K-M curve 1.878 (0.840–4.200) 0.125/ 120 7
2.153 (1.010–4.590) 0.047 80
Du 2018 China RCC tissue 96 (48/48) Median qRT-PCR OS K-M curve 1.022 (0.480–2.180) 0.953 160 6
Guo 2018 China PDAC tissue 171 (82/89) Median qRT-PCR OS reported 3.251 (1.177–6.362) 0.004 60 7
Jin 2018 China NSCLC tissue 35 (20/15) Median qRT-PCR OS K-M curve 1.414 (0.380–5.260) 0.606 60 6
Kong 2018 China breast cancer tissue 58 (29/29) Median qRT-PCR OS K-M curve 2.126 (0.900–5.020) 0.086 60 6
Wu 2018 China PTC tissue 92 (50/42) Median qRT-PCR OS K-M curve 1.081 (0.350–3.340) 0.892 60 6
Huang 2019 China colorectal cancer tissue 91 (46/45) Median qRT-PCR OS reported 2.731 (1.005–7.424) 0.049 84 7
Qu 2019 China EOC tissue 182 (73/109) Mean qRT-PCR OS/PFS K-M curve 1.918 (1.210–3.040) 0.006/ 60 8
1.844 (1.180–2.880) 0.007
  1. HCC hepatocellular carcinoma; NSCLC non-small cell lung cancer; RCC renal cell carcinoma; PDAC pancreatic ductal adenocarcinoma; PTC papillary thyroid cancer; EOC epithelial ovarian cancer; NM not mention; OS overall survival; DFS disease-free survival; PFS progression-free survival; K-M curve Kaplan–Meier curve; qRT-PCR quantitative real time polymerase chain reaction; NOS Newcastle-Ottawa Scale