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Table 3 Performance of the different models predicting the type of response to neoadjuvant chemotherapy

From: Radiomic-based models are able to predict the pathologic response to different neoadjuvant chemotherapy regimens in patients with gastric and gastroesophageal cancer: a cohort study

Model*

AUC (95% CI)

Accuracy (95% CI)

Se (95% CI)

Sp (95% CI)

PPV (95% CI)

NPV (95% CI)

MRs (TRG1-2 vs. 3–5)

1. All types of chemotherapy (n = 73)

*radiomic/clinicopathologic

0.876 (0.786 − 0.966)

0.84 (0.73–0.91)

83 (56–96)

84 (73–91)

50 (29–71)

96 (88–99)

NRs (TRG1-3 vs. 4–5)

1. All types of chemotherapy

(n = 77)

*radiomic

0.725 (0.610–0.839)

0.70 (0.59–0.80)

72 (56–84)

68 (53–81)

70 (55–82)

70 (54–83)

2. ECF/EOX + FLOT

(n = 61)

*radiomic

0.760 (0.639–0.882)

0.75 (0.63–0.86)

74 (57–87)

77 (60–89)

77 (60–89)

74 (57–87)

3. Oxaliplatin-based

(n = 53)

*radiomic

0.810 (0.692–0.928)

0.77 (0.64–0.88)

96 (85–100)

56 (37–74)

71 (55–84)

93 (73–99)

4. FLOT

(n = 40)

*radiomic

0.907 (0.818 − 0.995)

0.82 (0.67–0.93)

73 (52–88)

94 (77–99)

94 (76–99)

74 (54–88)

  1. MRs: major responders; NRs: non-responders; TRG: tumor regression grade according to Mandard; AIUC: area under the curve; Se: sensitivity; Sp: specificity; PPV: positive predictive value, NPV: negative predictive value; ECF: epirubicin, cisplatin and fluorouracil; EOX: epirubicin, oxaliplatin and capecitabine; FLOT: fluorouracil, leucovorin, oxaliplatin and docetaxel; Oxaliplatin-based chemotherapy: FOLFOX (fluorouracil, leucovorin, oxaliplatin), EOX, FLOT