Polymorphism of -765G > C COX-2 is a risk factor for gastric adenocarcinoma and peptic ulcer disease in addition to H pylori infection: A study from northern India

Table 1 Demography of the study populations and H pylori infection

Parameter	Gastric adenocarcinoma	Peptic ulcer disease	Non-ulcer dyspepsia	Overall
	(n = 62)	(n = 45)	(n = 241)	(348)
Age (yr)	56.60 ± 15.42	49.47 ± 17.22	43.75 ± 14.76	46.78 ± 15.96
Male:Female	47:15	31:14	138:103	216:132
H pylori infection1 (%)	35 (56.5)	36 (80)	133 (55.2)	204 (58.6)

¹Peptic ulcer disease vs non-ulcer dyspepsia: 80% vs 55.2%, P = 0.002; Gastric adenocarcinoma vs non-ulcer dyspepsia: 56.5% vs 55.2%, P = 0.858; Peptic ulcer disease vs gastric adenocarcinoma: 80% vs 56.5%, P = 0.01.