Table 1.

Comparison of patients with H pylori who did and did not develop gastric cancer

	H pylori (n=369,789)	H pylori with future non-proximal gastric adenocarcinoma (n = 2,024)	P-value
Age in years at H pylori, median (IQR)	62.0 (52.7, 70.9)	65.1 (57.4, 73.3)	P<0.001
Male (%)	341,367(92.3%)	1,963 (97.0%)	P<0.001
Race (%)			P<0.001
White	214,090 (57.9%)	984 (48.6%)
Black or African American	87,989 (23.8%)	641 (31.7%)
American Indian or Alaskan Native	3,322 (0.9%)	17 (0.8%)
Asian	2,483 (0.7%)	21 (1.0%)
Native Hawaiian / Pacific Islander	3,837 (1.0%)	13 (0.6%)
Unknown / Declined to Answer	58,068 (15.7%)	348 (17.2%)
Ethnicity			P<0.001
Hispanic / Latino	290,286 (78.5%)	1,507 (74.5%)
Not Hispanic or Latino	33,306 (9.0%)	213 (10.5%)
Unknown / Declined to Answer	46,197 (12.5%)	304 (15.0%)
Ever smoker (%)	97,571 (26.4%)	621 (30.7%)	P<0.001
Method of H pylori diagnosis			0.009
Pathology	26,725 (7.2%)	148 (7.3%)
Stool Antigen	11,205 (3.0%)	57 (2.8%)
Urea Breath Test	399 (0.1%)	1 (0.05%)
RX, no serum Ab	256,883 (69.5%)	1,479 (73.1%)
ICD, no serum Ab	9,507 (2.6%)	47 (2.3%)
RX, with serum Ab	7,815 (2.1%)	39 (1.9%)
ICD, with serum Ab	57,255 (15.5%)	253 (12.5%)
Poverty level of zip code where patient resided at H pylori diagnosis			P<0.001
< 10% residing below poverty level	69,754 (18.9%)	386 (19.1%)
10 − 24.9% residing below poverty level	184,848 (50.0%)	912 (45.1%)
25 − 49.9% residing below poverty level	88,986 (24.1%)	572 (28.3%)
≥50% residing below poverty level Unknown	9,880 (2.7%) 16,321 (4.4%)	76 (3.8%) 78 (3.9%)
Follow up time in years, median (IQR)	7.4 (3.3, 12.3)	1.8 (0.4,5.8)	P<0.001
Deceased	137,575 (37.2%)	1,371 (67.7%)	P<0.001

IQR = inter-quartile range; RX = prescription therapy; ICD = International Classification of Diseases (administrative codes); Ab = antibody