| Before matching | After matching | ||||
---|---|---|---|---|---|---|
MIAB group | EUS-FNAB group | P value | MIAB group | EUS-FNAB group | P value | |
Number of patients | 45 | 56 | n.s. (P = 0.84) | 31 | 31 | n.s. (P = 1.0) |
Gender; male/female | 21/24 | 25/31 | n.s. (P = 0.84) | 14/17 | 13/18 | n.s. (P = 0.80) |
Age; median & range | 62.0 (27–84) | 62.0 (27–87) | n.s. (P = 0.98)> | 62.0 (27–82) | 64.0 (27–83) | n.s. (P = 0.77) |
Lesion size (mm); median & range | 15.0 (8.8–19.8) | 16.0 (9.0–19.8) | n.s. (P = 0.84) | 17 (8.8–19.8) | 15 (9–19.8) | n.s. (P = 0.99) |
Number of lesions in each gastric location |  |  | n.s. (P = 0.41) |  |  | n.s. (P = 0.92) |
 Upper stomach | 24 | 34 |  | 18 | 18 |  |
 Middle stomach | 13 | 17 |  | 8 | 9 |  |
 Lower stomach | 8 | 5 |  | 5 | 4 |  |
Procedural time (min); median & range | 31 (10–160) | 20 (9–49) | P < 0.001 | 31 (10–160) | 20 (10–49) | P = 0.0093 |
Success rate of tissue sampling | 97.8% (44/45) | 85.7% (48/56) | P = 0.34 | 93.5% (29/31) | 61.3% (19/31) | P = 0.011 |
Diagnostic yield | 93.3% (42/45) | 71.4% (40/56)> | P = 0.005 | 93.5% (29/31) | 61.3% (19/31) | P = 0.011 |
Complication rate | 0% (0/45) | 0% (0/56) | n.s. (P = 1.0) | 0% (0/31) | 0% (0/31) | n.s. (P = 1.0) |
Number and frequency of lesions of each histology type |  |  | n.s. (P = 0.066) |  |  | n.s. (P = 0.14) |
 GIST | 46.7% (21/45) | 57.1% (32/56) |  | 48.4% (15/31) | 42.0% (13/31) |  |
 Leiomyoma | 26.7% (12/45) | 8.9% (5/56) |  | 25.8% (8/31) | 12.9% (4/31) |  |
 Schwannoma | 4.4% (2/45) | 1.7% (1/56) |  | 6.5% (2/31) | – |  |
 Aberrant pancreas | 8.9% (4/45) | 3.4% (2/56) |  | 6.5% (2/31) | 6.5% (2/31) |  |
 Glomus tumor | 2.2% (1/45) | – |  | – | – |  |
 Lipoma | 2.2% (1/45) | – |  | 3.2% (1/31) | – |  |
 Inflammatory change | 2.2% (1/45) | – |  | 3.2% (1/31) | – |  |