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Table 5 Comparison of Diagnostic Results of NAB alone and NAB combined with Tumor Markers according to tumor stage

From: Additional diagnostic value of tumor markers in cytological fluid for diagnosis of non-small-cell lung cancer

Diagnostic Method

Sensitivity (%)

Specificity (%)

Accuracy (%)

PPV (%)

NPV (%)

Early Stage (Stage 1 and 2, n=55)

NAB alone

75.9

100

88.1

100

80.9

NAB+Serum Tumor marker

    

CYFRA (3.3)

77.8

81.8

79.8

80.8

78.9

CEA (5)

75.9

90.9

83.5

89.1

79.4

SCC (2)

75.9

92.7

84.4

91.1

79.7

NAB+Cytological Tumor marker

    

CYFRA (15.7)

94.4

98.2

96.3

98.1

94.7

CEA (0.6)

87

92.7

89.9

92.2

87.9

SCC (0.86)

87

70.9

78.9

74.6

84.8

Advanced Stage (Stage 3 and 4, n=84)

NAB alone

88.1

100

92.8

100

84.6

NAB+Serum Tumor marker

    

CYFRA (3.3)

90.5

81.8

87.1

88.4

84.9

CEA (5)

92.9

90.9

92.1

94

89.3

SCC (2)

89.3

92.7

90.6

94.9

85

NAB+Cytological Tumor marker

    

CYFRA (15.7)

95.2

98.2

96.4

98.8

93.1

CEA (0.6)

95.2

92.7

94.2

95.2

92.7

SCC (0.86)

94

70.9

84.9

83.2

88.6

  1. Note-Numbers in parentheses are cut-off levels of tumor markers in ng/mL.
  2. Abbreviations: PPV, positive predictive value; NPV, negative predictive value; CEA, carcinoembryonic antigen; SCC, squamous cell carcinoma; CYFRA, cytokeratin 19 fragments; NAB, needle aspiration biopsy.