Table 3.
Women not using a combined hormonal | |
pill/patch/ring and are not pregnant | About 2 out of 10,000 women |
Women using a combined hormonal | |
contraceptive (CHC) containing | |
levonorgestrel, norethisterone or norgestimate | About 5–7 out of 10,000 women |
Women using a CHC containing | |
etonogestrel or norelgestromin | About 6–12 out of 10,000 women |
Women using a CHC containing | |
drospirenone, gestodene or desogestrel | About 9–12 out of 10,000 women |
Women using a CHC containing | |
chlormadinone, dienogest or nomegestrol | Not yet known1 |
Further studies are ongoing or planned to collect sufficient data to estimate the risk for these products.