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. 2021 Nov 7;27(41):7100–7112. doi: 10.3748/wjg.v27.i41.7100

Table 1.

Helicobacter pylori positivity by different diagnostic tests

Patients
13C-UBT
Histology (biopsy)
RUT (biopsy)
SAT (stool)
PCR1 (biopsy)
NPCR (biopsy)
NPCR (stool)
NPCR (saliva)
5 + + + + + + + +
3 + + + + + + + -
7 + + + + + + - -
2 + - - + + + + -
5 + - - + + + - -
2 + + - - + + - -
6 + - - - - + - -
2 + - - - - - - -
2 - - - - - + - -
3 - - - - - - - +
44 - - - - - - - -
Total 81 32 17 15 22 24 32 10 8
1

Simple polymerase chain reaction (PCR).

Hpup/HPdown primers; 37 cycles; PCR products sequenced. GenBank database comparisons confirmed the DNA sequence origin as Helicobacter pylori. Plus indicates a positive result, minus indicates a negative result[43]. RUT: Rapid urease test; SAT: Stool antigen; PCR: Polymerase chain reaction; NPCR: Nested PCR.