Retrospective Study
Copyright ©The Author(s) 2017.
World J Gastroenterol. Jun 28, 2017; 23(24): 4416-4421
Published online Jun 28, 2017. doi: 10.3748/wjg.v23.i24.4416
Table 1 Baseline characteristics of patients with superficial esophageal squamous cell carcinoma n (%)
Characteristics
Male/female62/7
Mean age, yr (range)66 (47-81)
Location
Upper esophagus3 (4.3)
Mid-esophagus52 (74.3)
Lower esophagus15 (21.4)
Macroscopic shape
Elevated24 (34.3)
Flat27 (38.6)
Depressed19 (27.1)
Mean tumor size, mm (range)25 (4-70)
Differentiation
Well differentiated34 (48.6)
Moderately differentiated31 (44.3)
Poorly differentiated5 (7.1)
Depth of invasion
Mucosa43 (61.4)
m18
m220
m315
Submucosa27 (38.6)
sm13
sm224
Resection method
Endoscopic resection32 (45.7)
Surgical resection38 (54.3)
Table 2 Comparison of pretreatment diagnosis by magnifying endoscopy with narrow-band imaging and histopathology of superficial esophageal squamous cell carcinoma
ME-NBINo. of casesHistopathology, n
m1-m2m3-sm1sm2
B1202000
B2318176
B3190118
Table 3 Accuracy, sensitivity, specificity, and positive and negative predictive values of magnifying endoscopy with narrow-band imaging for predicting depth of invasion of superficial esophageal squamous cell carcinoma (%)
ME-NBIAccuracy (95%CI)Sensitivity (95%CI)Specificity (95%CI)PPV (95%CI)NPV (95%CI)
B188.6 (78.2-94.6)71.4 (51.1-86.0)100 (89.6-100)100 (80.0-100)84.0 (70.3-92.4)
B278.6 (66.8-87.1)94.4 (70.6-99.7)73.1 (58.7-84.0)54.8 (36.3-72.2)97.4 (84.9-99.9)
B390.0 (79.9-95.5)75.0 (52.9-89.4)97.8 (87.0-99.9)94.7 (71.9-99.7)88.2 (75.4-95.1)