Table 3.
Significant adjusted relative odds of past or present HBV infection* of adults and adolescents aged 15–64 years, Kenya, 2007
| Category | Adjusted OR (95% CI) |
|---|---|
| Residing province | |
| Nairobi | 1.00 (reference) |
| Central | 0.51 (0.20, 1.29) |
| Coast | 0.90 (0.38, 2.15) |
| Eastern | 1.07 (0.40, 2.91) |
| North Eastern | 4.19 (1.21, 14.42) |
| Nyanza | 1.22 (0.42, 3.54) |
| Rift Valley | 0.73 (0.27, 2.00) |
| Western | 0.40 (0.14, 1.12) |
| Age group (years) | |
| 15–24 | 1.00 (reference) |
| 25–34 | 1.85 (0.99, 3.45) |
| 35–44 | 2.66 (1.33, 5.34) |
| 45–54 | 6.44 (3.15, 13.19) |
| 55–64 | 5.15 (2.24, 11.84) |
| Education† | |
| No primary | 1.54 (0.78, 3.04) |
| Incomplete/complete primary | 1.89 (1.13, 3.16) |
| Secondary or higher | 1.00 (reference) |
CI = confidence interval; HBV = hepatitis B virus; OR = odds ratio.
*
Past or present HBV infection was defined as having a positive laboratory result for hepatitis B core antibody.
†
Primary school is defined as elementary school usually from the ages of about 5–11 years. Secondary school is middle, and high school usually from the ages 10 or 11 to 18 or 19 years.