Microarray-Based Detection and Clinical Evaluation for Helicobacter pylori Resistance to Clarithromycin or Levofloxacin and the Genotype of CYP2C19 in 1083 Patients

Table 5

Microarray and sequencing results of gyrA at Asn-87.

gyrA N87K	Sequencing
	A/G	T/C	Total
Microarray
A/G	123	10	133
T/C	12	546	558
Total	135	556	691

A sensitivity of 91.11%, specificity of 98.20%, positive predictive value of 92.48%, and negative predictive value of 97.85% for microarray detection of gyrA at Asn-87.