miRCpG islands | Group of gastric samples | miR-Methylation | ||||||
---|---|---|---|---|---|---|---|---|
Positive rate | Proportion (%) of methylated miRin the miRmethylation-positive samples | |||||||
Positive rate (%) | χ 2-value | Trend-test (P-value) | Median[25% ~ 75%] | Mean±SD | t/F/χ 2-value | P-value | ||
miR-9-1 | Normal | 1/13 (7.7) | 27.598 | <0.001 a | NA | Â | Â | NA |
 | Gastritis | 1/35 (2.9) |  |  | NA |  |  |  |
 | SM | 9/28 (32.1) |  |  | 17 [13–30] | 20 ± 4 | t = −3.039 | 0.005 g |
 | GC | 18/28 (64.3) |  |  | 29 [19–40] | 32 ± 4 |  |  |
miR-9-3 | Normal | 6/13 (46.2) | 23.389 | <0.001 a | 38 [31–59] | 43 ± 6 | F = 1.639 | 0.189 h |
 | Gastritis | 15/37 (40.5) |  |  | 43 [36–48] | 42 ± 2 |  |  |
 | SM | 26/28 (92.9) |  |  | 38 [26–44] | 36 ± 2 |  |  |
 | GC | 26/28 (92.9) |  |  | 37 [26–43] | 36 ± 2 |  |  |
miR-137 | Normal | 5/13 (38.5) | 18.626 | <0.001 a | 10 [4–41] |  | χ 2 = 8.065 | 0.045 d |
 | Gastritis | 24/38 (63.2) |  |  | 19 [7–36] |  |  |  |
 | SM | 25/26 (96.4) |  |  | 15 [7–40] | 21 ± 3g |  |  |
 | GC | 24/26 (92.3) |  |  | 36 [20–51] | 37 ± 4 |  |  |
miR-34b | Normal | 6/13 (46.2) | 6.947 | 0.008 a | 13 [7–19] |  | χ 2 = 0.658 | 0.883 d |
 | Gastritis | 13/36 (36.1) |  |  | 11 [3–20] |  |  |  |
 | SM | 22/28 (78.6) |  |  | 11 [4–18] |  |  |  |
 | GC | 19/28 (67.9) |  |  | 10 [5–32] |  |  |  |
miR-200b | Normal | 13/13 (100) | 0.486 | 0.922 f | 54 [52–83] |  | χ 2 = 17.883 | <0.001 d |
 | Gastritis | 35/36 (97.2) |  |  | 52 [46–100] e |  |  |  |
 | SM | 27/28 (96.4) |  |  | 44 [40–47] |  |  |  |
 | GC | 27/28 (96.4) |  |  | 48 [40–53] |  |  |  |
miR-210 | Normal | 2/13 (15.4) | 11.908 | 0.001 a | NA | Â | Â | NA |
 | Gastritis | 13/38 (34.2) |  |  | 7 [5–10] |  |  |  |
 | SM | 22/27 (81.5) |  |  | 11 [5–22] |  |  |  |
 | GC | 16/27 (59.3) |  |  | 9 [4–16] |  |  |  |
miR-193b | Normal | 0/13 | 7.045 | 0.008 b | NA | Â | Â | NA |
 | Gastritis | 2/37 (5.4) |  |  | NA |  |  |  |
 | SM | 7/28 (25.0) |  |  | 5 [4–14] |  |  |  |
 | GC | 4/28 (14.3) |  |  | 5 [2–12] |  |  |  |
miR-203 | Normal | 5/13 (38.5) | 5.617 | 0.018 b | 32 [29–75] |  | χ 2 = 2.957 | 0.398 d |
 | Gastritis | 20/38 (52.6) |  |  | 31 [26–36] |  |  |  |
 | SM | 21/28 (75.0) |  |  | 34 [30–36] |  |  |  |
 | GC | 11/28 (39.3)c |  |  | 32 [29–35] |  |  |  |
miR-375 | Normal | 0/13 | 12.266 | <0.001 b | NA | Â | Â | NA |
 | Gastritis | 13/38 (34.2) |  |  | 3 [3–4] e |  |  |  |
 | SM | 16/28 (57.1) |  |  | 7 [4–14] |  |  |  |
 | GC | 8/28 (28.6) c |  |  | 17 [8–21] |  |  |  |