Table 2.
Descriptive characteristics of controls from participants in the 1985 and 1999/2000 collections of the NIT study, according to multiplex H. pylori status1.
| Characteristic | 1985 | 1999/2000 | ||||
|---|---|---|---|---|---|---|
|
H. pylori − (n=54) |
H. pylori + (n=276) |
P |
H. pylori − (n=56) |
H. pylori + (n=856) |
P | |
| Age at blood draw, mean yrs, (SD) | 52 (10) | 52 (9) | 0.992 | 66 (8) | 64 (8) | 0.082 |
| Male, N (%) | 38 (70) | 184 (67) | 0.603 | 31 (55) | 417 (49) | 0.343 |
| Ever smokers, N (%) | 27 (51) | 138 (50) | 0.903 | 19 (35) | 272 (32) | 0.683 |
| Drank alcohol in last 12 months, N (%) | 20 (38) | 83 (30) | 0.273 | 18 (33) | 224 (26) | 0.293 |
| Body mass index, mean kg/m2 (SD) | 21.69 (1.81) | 21.91 (2.35) | 0.512 | 22.15 (2.08) | 21.91 (2.40) | 0.472 |
1
H. pylori seropositivity is defined as positivity to ≥ 4 H. pylori antigens.
2
P values were calculated by Student t test
3
P values were calculated by Pearson χ2 test