Impact of violence on HIV outcomes among female sex workers: A global systematic review and meta-analysis

This global systematic review and meta-analysis of 91 studies involving nearly 180,000 female sex workers across 37 countries demonstrates that experiencing violence is significantly associated with higher odds of prevalent HIV infection and reduced odds of ART use and viral suppression, highlighting violence as a critical structural determinant that must be addressed in HIV interventions.

Dawe, J., Mazhar, K. A., Khan, S. A., Njiro, B. J., Bendaud, V., Sabin, K., Ambia, J., Trickey, A., Barrass, L., Asgharzadeh, A., Stone, J., Artenie, A., Vickerman, P.

Published 2026-02-27
📖 4 min read☕ Coffee break read
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This is an AI-generated explanation of a preprint that has not been peer-reviewed. It is not medical advice. Do not make health decisions based on this content. Read full disclaimer

Imagine a group of women working in a very dangerous, high-stakes job: Female Sex Workers (FSWs). They are already fighting an uphill battle against HIV, a virus that can be deadly if not managed. Now, imagine that on top of the dangers of their work, they are also being attacked, threatened, or abused by clients, partners, or even the police.

This paper is like a massive detective investigation that gathered clues from 91 different studies across 37 countries, involving nearly 180,000 women. The detectives wanted to answer one big question: "Does experiencing violence make it harder for these women to stay healthy and fight HIV?"

Here is the story of what they found, explained simply:

1. The "Double Whammy" Effect

Think of HIV as a heavy backpack these women are already carrying. The researchers found that violence adds a second, even heavier backpack on top of it.

  • The Finding: Women who had been beaten, sexually assaulted, or emotionally abused were significantly more likely to be living with HIV than those who hadn't.
  • The Analogy: Imagine trying to run a race (staying healthy) while someone is constantly tripping you (violence). It's not just that you get tired; you are much more likely to fall down and get hurt. The study found that recent violence increased the odds of having HIV by about 33%, and lifetime violence by about 36%.

2. The "Broken Bridge" to Medicine

Once a woman has HIV, she needs medicine (called ART) to keep the virus asleep and her immune system strong. This medicine is like a lifeline or a bridge to a healthy life.

  • The Finding: The study discovered that women who recently experienced violence were less likely to take their medicine.
  • The Analogy: Imagine the medicine is a lifeboat. But if the person is being harassed or scared by a storm (violence), they might be too afraid to get in the boat, or the storm might knock them out of it before they can reach safety. Violence acts like a barrier, blocking the path to the life-saving bridge.

3. The "Silent Storm" of Lifetime Trauma

The researchers also looked at women who had experienced violence at any point in their lives, not just recently.

  • The Finding: Even if the violence happened years ago, it still had a lingering effect. Women with a history of violence were less likely to have their HIV virus fully suppressed (meaning the virus was still active and could be passed on).
  • The Analogy: Think of violence like a deep crack in a dam. Even if the water (the virus) is currently low, that crack weakens the whole structure. Over time, the dam is more likely to fail, meaning the virus can break through and cause trouble again.

4. What Didn't Change?

The detectives also looked at whether violence stopped women from getting tested for HIV.

  • The Finding: Surprisingly, violence didn't seem to stop them from getting tested. They were just as likely to go to the clinic to find out their status.
  • The Analogy: It's like knowing your car has a flat tire. The violence didn't stop them from checking the tire; the problem was that once they knew, the violence made it harder to fix the tire (take the medicine) or keep the car running smoothly.

Why Does This Happen?

The paper suggests several reasons why violence makes HIV worse:

  • Direct Damage: Sometimes violence forces women into unprotected sex, directly passing the virus.
  • Fear and Control: If a partner or client is violent, they might control the woman's life, telling her not to use condoms or not to take her pills.
  • Mental Health: Violence causes deep stress and depression. When you are in survival mode, taking care of a long-term illness like HIV often falls to the bottom of the priority list.

The Big Takeaway

The authors conclude that you cannot fix the HIV problem without fixing the violence problem.

Think of HIV interventions (like giving out free medicine) as giving someone a bandage. But if you keep hitting the person with a hammer (violence), the bandage will never stick, and the wound will never heal.

The Solution: To truly help these women, we need to stop just handing out bandages. We need to stop the hammer. This means:

  • Creating safe environments where women aren't afraid to speak up.
  • Training police and doctors to be allies, not threats.
  • Empowering communities to stand up against abuse.

In short: Violence is a structural wall blocking the path to health. To let women walk through that path to a healthy life, we must tear that wall down.

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