Table 3.

Independent Predictors of Knowledge of Sexual Contact as a Risk Factor for Infection with Hepatitis B. Middle and High School Students, Worcester, Massachusetts, 1993

VariableOdds
Ratio
95%
Confidence
Interval
P
Vietnamese.23.14, .38<.001
African-American.81.57, 1.13.209
Hispanic.72.55, .95.018
White1.0
Age 16 years or older1.331.04, 1.72.025
Taught about hepatitis B in school4.023.27, 4.94<.001
Knew definition of hepatitis B2.341.88, 2.91<.001
Academic performance*.88.83, .95<.001
Family member had hepatitis B1.951.15, 3.31.013
High school student2.612.00, 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.