Table 1. MiRNAs differentially expressed between the early and late postpartum breast cancer groups.

miRNA ID	Log2 Fold Change	Log2 mean Expression	Adjusted p-value	Chromosomes
miRNAs overexpressed in early group (≤ 5.2 years postpartum)
hsa-miR-138	2.331	13.837	0.0046	Chr 3, 16
hsa-miR-660	1.137	15.849	0.0264	Chr X
hsa-miR-31	1.333	18.447	0.0264	Chr 9
hsa-miR-135b	2.813	15.552	0.0264	Chr 1
hsa-miR-500a	0.999	13.462	0.0264	Chr X
hsa-miR-19b	0.672	22.512	0.0264	Chr 13, X
hsa-miR-17	1.085	15.314	0.0264	Chr 13
hsa-miR-362-3p	0.948	5.668	0.0335	Chr X
hsa-miR-106a	0.874	21.138	0.0389	Chr X
hsa-miR-454	1.378	8.447	0.0395	Chr 17
hsa-miR-502-5p	0.816	14.491	0.0417	Chr X
hsa-miR-934	2.621	12.172	0.0477	Chr X
miRNAs underexpressed in early group (≤ 5.2 years postpartum)
hsa-miR-892a	-2.671	8.959	0.0264	Chr X
hsa-miR-199a-5p	-1.236	21.199	0.0264	Chr 1, 19
hsa-miR-542-5p	-1.082	14.069	0.0264	Chr X

Differentially expressed miRNAs. MiRNAs differentially expressed between the two postpartum interval groups identified. Fifty six samples were processed, with early group (≤ 5.2 years postpartum), representing 12 samples, and late group (≥ 5.3 years postpartum), representing 44 samples. MiRNAs identified based on their expression from a quantitative RT-PCR. The listed miRNAs are ordered based on their adjusted p-values. The last column (Chromosomes) indicates on which chromosomes miRNAs are encoded.