Table 4. Characteristics of patients with imported and nonimported hepatitis A virus infections, Germany, 2007–2008*.
| Characteristic | No. (%) patients with imported infections | No. (%) patients with nonimported infections | Total no. (%) infected patients | RR (95% CI) |
|---|---|---|---|---|
| Migration background | 161 (63.9) | 66 (23.0) | 227 (42.1) | 2.43 (2.01–2.95) |
| Male sex | 180 (52.0) | 194 (43.5) | 374 (47.2) | 1.21 (1.04–1.42) |
| Age <18 y | 169 (48.8) | 110 (24.7) | 279 (35.2) | 1.76 (1.51–2.04) |
| Age >60 y | 26 (7.5) | 140 (31.4) | 166 (21.0) | 0.31 (0.21–0.44) |
| Part of case cluster | 79 (29.5) | 65 (21.8) | 144 (25.4) | 1.22 (1.00–1.49) |
| <18 y of age with migration background | 119 (91.5) | 45 (57.7) | 164 (78.8) | 2.90 (1.73–4.88) |
*RR, relative risk; CI, confidence interval.