Independent Predictors of Knowledge of Sexual Contact as a Risk Factor for Infection with Hepatitis B. Middle and High School Students, Worcester, Massachusetts, 1993
| Variable | Odds Ratio | 95% Confidence Interval | P |
|---|---|---|---|
| Vietnamese | .23 | .14, .38 | <.001 |
| African-American | .81 | .57, 1.13 | .209 |
| Hispanic | .72 | .55, .95 | .018 |
| White | 1.0 | — | — |
| Age 16 years or older | 1.33 | 1.04, 1.72 | .025 |
| Taught about hepatitis B in school | 4.02 | 3.27, 4.94 | <.001 |
| Knew definition of hepatitis B | 2.34 | 1.88, 2.91 | <.001 |
| Academic performance* | .88 | .83, .95 | <.001 |
| Family member had hepatitis B | 1.95 | 1.15, 3.31 | .013 |
| High school student | 2.61 | 2.00, 3.40 | <.001 |
| Poor speaking English | .35 | .29, .50 | .002 |
↵* Scaled as 7 levels, from “one of the best”, to “near the bottom” compared to other students in respondent's class. O.R. indicates risk associated with change in one level.