Across TCGA pan-cancer cohorts, SNORD115-18 RNA is linked to patient survival in 1 of 34 cancer types, making it a survival-associated SNORD115-18 data layer compared with 3 for mutation status.

The strongest signal is observed in stomach adenocarcinoma (STAD), where higher SNORD115-18 RNA is associated with worse overall survival. In most high-consensus cancer types, elevated SNORD115-18 expression acts as an unfavorable survival marker.

STAD are the cancer types where SNORD115-18 RNA most reproducibly stratifies survival.

RNA survival associations by lineage

Ranked by sampling consensus. AUC1 and AUC2 indicate survival in the high- and low-expression groups, respectively; the lower AUC marks the poorer-surviving group. p-values are from the log-rank test.

Lineage	Measure	Split	Stage	AUC1 high	AUC2 low	p	Sampling consensus
STAD	OS	Tertile	All	0.213	0.692	<.001	90	view →

Pink = unfavorable, green = favorable. Showing the 1 strongest of 1 lineages.

Exploration

Same gene, other analysis: SNORD115-18 tumor-vs-normal RNA expression · all SNORD115-18 data types