Table 2.
Epidemiological characteristics in association with the presence of serological markers of CMV infection, HBV infection and HBV vaccine immunity of pregnant adolescents who received care in Belém, Pará, from November 2009 to February 2010
| Variables | N (%) | Anti-CMV IgM | P value | Anti-HBc Total | P value | Anti-HBs | P value | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Pos (%) | Neg (%) | Pos (%) | Neg (%) | Pos (%) | Neg (%) | |||||
| Age Group | ||||||||||
| 12–14 | 52 (16.0) | 3 (5.8) | 49 (94.2) | 0.08a | 4 (7.7) | 48 (92.3) | 0.56a | 15 (28.8) | 37 (71.2) | 0.01b |
| 15–18 | 272 (84.0) | 4 (1.5) | 268 (98.5) | 28 (10.3) | 244 (89.7) | 39 (14.3) | 233 (85.7) | |||
| Years of education | ||||||||||
| < 6 | 212 (65.4) | 4 (2.0) | 198 (98.0) | 20 (9.4) | 192 (90.6) | 22 (10.4) | 190 (89.6) | |||
| 6–9 | 102 (31.5) | 2 (2.0) | 100 (98.0) | 0.44c | 10 (9.8) | 92 (90.2) | 0.62c | 29 (28.4) | 73 (71.6) | 0.02c |
| > 9 | 10 (3.1) | 1 (10.0) | 9 (90.0) | 2 (20.0) | 8 (80.0) | 3 (30.0) | 7 (70.0) | |||
| Age at first intercourse | ||||||||||
| 9 to 11 | 6 (1.8) | 0 (0.0) | 6 (100.0) | 1 (16.7) | 5 (83.3) | 2 (33.3) | 4 (66.7) | |||
| 12 to 14 | 197 (60.8) | 3 (1.5) | 194 (98.5) | 0.9c | 19 (9.6) | 178 (90.4) | 0.88c | 32 (16.2) | 165 (83.8) | 0.62c |
| 15 to 17 | 121 (37.3) | 4 (3.3) | 117 (96.7) | 12 (9.9) | 109 (90.1) | 20 (16.5) | 101 (83.5) | |||
| Condom use | ||||||||||
| Sometimes | 249 (76.9) | 5 (2.0) | 244 (98.0) | 0.9a | 13 (5.2) | 236 (94.8) | 0.01a | 41 (16.5) | 208 (83.5) | 0.86c |
| Never | 75 (23.1) | 2 (2.7) | 73 (97.3) | 19 (25.3) | 56 (74.7) | 13 (17.3) | 62 (82.7) | |||
| Age of partner (years) | ||||||||||
| 12 to 18 | 150 (46.3) | 4 (2.7) | 146 (97.3) | 9 (6.0) | 141 (94.0) | 25 (16.7) | 125 (83.3) | |||
| 19 to 25 | 146 (45.0) | 3 (2.0) | 143 (98.0) | 0.5c | 12 (8.2) | 134 (91.8) | 0.01c | 19 (13.0) | 127 (87.0) | 0.02c |
| 25 to 42 | 28 (8.7) | 0 (0.0) | 28 (100.0) | 11 (39.3) | 17 (60.7) | 10 (35.7) | 18 (64.3) | |||
aFisher’s exact test; bChi-square test; cG test