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Hormones, the menstrual cycle and reproduction

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Question 7

Table 1 shows the percentage of unintended pregnancies during the first year of use for five different methods of contraception among sexually active individuals. The table presents data for both typical use (reflecting real-world use, including incorrect or inconsistent application) and perfect use (reflecting consistent and correct use according to instructions).

Table 1

Contraceptive methodType of contraceptiveTypical use (%)Perfect use (%)
Combined oral pillHormonal (user-dependent)8.50.3
Progesterone-only pillHormonal (user-dependent)9.00.3
Hormonal intrauterine system (IUS)Hormonal (long-acting reversible)0.20.2
Copper intrauterine device (IUD)Non-hormonal (long-acting reversible)0.80.6
Female condomBarrier (user-dependent)21.05.0

Compare and contrast the data for these contraceptive methods to advise a young adult on selecting a method to prevent both pregnancy and sexually transmitted infections (STIs).

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Hormones, the menstrual cycle and reproduction Questions

  1. GCSE
  2. /Biology
  3. /Hormones, the menstrual cycle and reproduction