Additional file 1: 29,032 lncRNA-miRNA associations and 10,048 mRNA-miRNA association from databases.

Raw data for initial triplets in Table 1.

Additional file 2: Potential prognostic triplets for groups 1 and 2 of breast cancer, liver cancer, and lung cancer.

The p-value of the triplet from the Cox model and the number of samples of each group.

Additional file 3: The second smallest p-value from the Cox model in breast cancer.

(A) Kaplan–Meier plot of the HCG9_hsa-mir-192_PHTF2 triplet in groups 1 and 2. The HCG9_hsa-mir-192_PHTF2 triplet shows the predictive power of survival rate in group 1 only.

(B) Kaplan–Meier plot of the DIRC3_hsa-mir-191_TMC7 triplet in groups 1 and 2. The DIRC3_hsa-mir-191_TMC7 triplet shows the predictive power of survival rate in group 2 only.