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Antiretroviral pregnancy registry data
| Agent | Earliest trimester of exposure | |
|---|---|---|
| 1st trimester birth defects/live births | 2nd/3rd trimester birth defects/live births | |
| Lamivudine | 99/3481 (2.8%) | 130/5194 (2.5%) |
| Adefovir | 0/37 | 0/0 |
| Telbivudine | 0/5 | 0/3 |
| Tenofovir | 19/879 (2.2%) | 11/501 (2.2%) |
| Entecavir | 0/12 | 0/2 |
| Any HBV nucleoside/nucleotide | 118/4414 (2.7%) | 141/5700 (2.5%) |
HBV—hepatitis B virus
