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Table 3 Comparison of sensitivity and specificity between criteria for PG test

From: Evaluation of screening tests for autoimmune gastritis in histopathologically confirmed Japanese patients, and re-evaluation of histopathological classification

PG test

Number of patients

AIG

Sensitivity (95% CI)

Specificity (95% CI)

+

3 +

17

0

85 (62.1–96.8)

100 (54.1–100)

2 +, 1 +, −

3

6

3 +, 2 +

18

2

90 (68.3–98.8)

66.7 (22.3–95.7)

1 +, −

2

4

3 +, 2 +, 1 +

18

2

90 (68.3–98.8)

66.7 (22.3–95.7)

2

4

  1. All patients were classified into four groups (3 +, 2 +, 1 +and −) according to Miki's criteria
  2. PG, pepsinogen; AIG, autoimmune gastritis; 95% CI, 95% confidence interval