Table 3. Pregnancy incidence and outcomes by vaccination period.
| Pregnancy rates | Outcome of pregnancy* | Row % (n) | ||||
| Full-termlife birth | Prematurelife birth | Fetal death/still birth | Spontaneousabortion | Ectopic pregnancy | Electiveabortion | |
| Overall rate per 100 w-yrs | ||||||
| 9.6 (48/501)** | 47 (20) | 16 (7) | 2 (1) | 7 (3) | 2 (1) | 26 (11) |
| Rate during vaccination period Λ | ||||||
| 6.8 (13/191)** | 23 (3) | 23 (3) | 0 | 8 (1) | 0 | 46 (6) |
| Rate after vaccination period | ||||||
| 11.3 (35/310)** | 57 (17) | 13 (4) | 3 (1) | 7 (2) | 3 (1) | 17 (5) |
*
Outcome of pregnancy not known for 5 women.
**
Number of pregnancies/woman years.
Λ
Defined as the period between a woman’s first scheduled vaccination through 1 month after the third, and final scheduled vaccination for that woman.