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May 13, 2026Contraception and Reproductive MedicineOpen Access

One-year discontinuation rate of the combined injectable contraceptive among post-abortion women: a prospective follow-up study in Shanghai, China

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Authors

SYShaojun YangMYMinghong YinYLYuyan Li

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Overview

Prospective follow-up study finds high discontinuation rates for combined injectable contraceptives in post-abortion women, suggesting need for better contraceptive support.

Key Points

  • This study aimed to assess the discontinuation rate and side effects of combined injectable contraceptive use among post-abortion women.
  • Conducted a prospective follow-up study among 1,156 post-abortion women in Shanghai, China from 2023 to 2024.
  • Participants used 'Compound Norethisterone Enanthate Injection' and were followed for one year.
  • Data was analyzed using chi-square tests and survival analysis.
  • One-year discontinuation rate of combined injectable contraceptives was 98.72% (95% CI: 97.83–99.29).
  • At 6 months, cumulative user-failure rate was 0.49% (95% CI: 0.18–1.30) and method-failure rate was 0.12% (95% CI: 0.02–1.13).
  • Side effects were reported by 28.63% of participants, all of whom discontinued using the contraceptive by follow-up.

Cite This Study

Yang et al. (2026) studied this question.

synapsesocial.com/papers/6a04147679e20c90b44446f8https://doi.org/10.1186/s40834-026-00454-y
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Postabortion contraceptive use among women in Nepal: Results from a longitudinal cohort study2024
  2. 2Post abortion contraception: A follow up study in women undergoing first and second trimester abortion at a tertiary care centre2024
  3. 3A prospective study of postpartum insertions of intrauterine contraceptive device in a tertiary care hospital2024 · 1 citations
  4. 4Injectable Contraceptives as an Underutilized Option for Women's Reproductive Health: An Exploratory Qualitative Study2024
  5. 5One-year continuation of postpartum intrauterine contraceptive device: Findings from a prospective cohort study in India2024 · 5 citations