Punctual mutations in 23S rRNA gene of clarithromycin-resistant Helicobacter pylori in Colombian populations

Table 2 Frequencies of mutations in 23S rRNA gene of Helicobacter pylori according to susceptibility to clarithromycin and risk of gastric cancer n (%)

Susceptibility	Risk of gastric cancer
	Low risk n = 39				High risk n = 17
	Mutant		Non mutant		Mutant		Non mutant
Resistant	13 (23.2)		8 (14.3)		4 (7.1)		1 (1.8)
Susceptible	8 (14.3)		10 (17.8)		6 (10.7)		6 (10.7)
Kappa-P	k = 0.17		P = 0.28		k = 0.23		P = 0.25
Total	21	37.5	18	32.1	10	17.8	7	12.5