Back Understanding Autoimmune Disease
Understanding Autoimmune Disease
Back Resources for Hope and Health
Resources for Hope and Health
Back Autoimmune Research & News
Autoimmune Research & News
Back Who We Are & How We Help
Who We Are & How We Help
an icon of a microscope, indicating research and science
Research Grants
& Projects

Reproductive Factors Linked to Increased SLE Risk in Black Women

A recent study titled “A prospective study of reproductive factors in relation to the risk of systemic lupus erythematosus among black women” sheds light on unique factors affecting Black women with systemic lupus erythematosus (SLE). SLE, an autoimmune disorder that leads to widespread inflammation, typically appears during the reproductive years (ages 15 to 40). Conducted by a multi-site research group, this study identifies key reproductive factors that may influence the higher prevalence and severity of SLE in Black women, who are more affected by SLE than any other racial or ethnic group.

Key Findings 

The study identified 125 cases of SLE from surveys of over 58,000 participants of the Black Women’s Health Study. The surveys covered various reproductive factors, including:

  • Age at first period
  • Breastfeeding status and duration
  • Age at first birth
  • Menopausal status
  • Hysterectomy history
  • History of endometriosis

Factors linked to an increased SLE risk

  • Late Menarche: Women who had their first period after age 15 had a higher risk of developing SLE compared to those who started at age 12.
  • Extended Breastfeeding: Breastfeeding for longer than six months was associated with an increased risk of SLE compared to not breastfeeding at all.

What’s the next step?

This study offers important insights into how SLE uniquely affects Black women. However, the authors note that these findings are preliminary and differ from previous studies involving other racial and ethnic groups. The relatively small number of SLE cases limits the conclusions, underscoring the need for larger, more comprehensive studies. Further research is essential to understand the biological mechanisms underlying these associations and to improve the diagnosis and management of SLE in Black women.

Citation:

Cozier, Y. C., et al. (2021). A prospective study of reproductive factors in relation to risk of systemic lupus erythematosus among black women. Lupus, 30(2), 204–210. https://doi.org/10.1177/0961203320973074