Table 4 Socio-demographic factors associated with knowledge of transmission, amount of information received and knowledge on occupational risk groups Odds ratios (OR) and 95% confidence interval (CI).

OR (95% CI)

OR (95% CI)

OR (95% CI)

Private institution

1

1

1

Public institution

0.6 (0.4–0.9)

0.5 (0.3–0.7)

0.6 (0.4–0.8)

Male

1

1

1

Female

1.2 (0.8–1.7)

1.2 (0.8–1.7)

1.0 (0.7–1.5)

22–30 yr (older)

1

1

1

18–21 yr (younger)

1.1 (0.7–1.5)

0.6 (0.4–0.8)

0.6 (0.4–0.8)

Father's education – high

1

1

1

Father's education low

0.6 (0.4–0.9)

1.1 (0.7–1.7)

0.7 (0.4–1.1)

Mother's education- high

1

1

1

Mother's education – low

1.5 (1.1–2.1)

1.0 (0.7–1.4)

0.9 (0.6–1.3)

Living in Khartoum

1

1

1

Living outside Sudan

1.3 (0.9–1.8)

0.8 (0.6–1.2)

0.7 (0.5–1.0)