Table 2.
Comparison Between Subjects With Adequate Antibody to Hepatitis B Surface Antigen (Anti-HBs) Versus Those With Inadequate Anti-HBs
| Feature | Anti-HBs Positive (>12 mIU/mL) (n = 123) | Anti-HBs Negative (≤12 mIU/mL) (n = 36) | P Valuea |
|---|---|---|---|
| Age at visit, y, average ± SD | 47 ± 10 | 51 ± 10 | .04 |
| Age at vaccination, y, average ± SD | 32 ± 9 | 36 ± 9 | .02 |
| Time since vaccination, y, average ± SD | 15 ± 5 | 15 ± 4 | .93 |
| Sex, female | 89 (72%) | 29 (81%) | .32 |
| Race, white | 82 (67%) | 28 (78%) | .57 |
| BMI, kg/m2 | 26 ± 4 | 27 ± 5 | |
| Handled HBV samples | 62 (50%) | 16 (44%) | .47 |
| HBV risk exposure score | .59 | ||
| Low | 16 (44%) | 47 (38%) | |
| Intermediate | 6 (17%) | 30 (24%) | |
| High | 14 (39%) | 46 (37%) | |
| Needle-stick | 38 (31%) | 13 (36%) | .55 |
| Mucocutaneous contact | 12 (10%) | 3 (8%) | .83 |
| Household HBV contact | 1 (1%) | 2 (6%) | .16 |
| Diabetes mellitus | 5 (4%) | 2 (6%) | .70 |
| Hypertension | 21 (17%) | 8 (22%) | .48 |
| Chronic kidney disease | 1 (1%) | 0 (0%) | .58 |
| Smoker, past or current | 30 (24%) | 3 (8%) | .04 |
| Alcohol use | 97 (79%) | 29 (81%) | .82 |
Data are presented as No. (%) unless otherwise specified.
Abbreviations: anti-HBs, antibody to hepatitis B surface antigen; BMI, body mass index; HBV, hepatitis B virus; SD, standard deviation.
aP values were calculated using t test for continuous variables and χ2 test for frequency or categorical variables.