Lyme Disease Presents Differently in Men and Women, Johns Hopkins Study Finds

A new study from Johns Hopkins Medicine reveals that men and women experience early Lyme disease differently, impacting symptoms, physical exam findings, and laboratory test results. The research, published February 7 in Clinical and Experimental Medicine, highlights the importance of considering sex-based differences in diagnosis and treatment.

Sex-Based Differences in Lyme Disease Presentation

Researchers analyzed data from 243 adults (118 females and 125 males) diagnosed with early Lyme disease, both before and after treatment. Participants ranged in age from 20 to 84. The study found that men were more likely to have a positive Lyme disease test result and exhibit more severe disease indicators, including other laboratory abnormalities, at the time of diagnosis. Notably, there was no significant difference in the duration of illness between men and women.

Specific Symptom Variations

While overall disease presentation differed, researchers identified specific symptoms reported more frequently among women. These included heart palpitations, vomiting, and light sensitivity. Conversely, sleep disruption was reported more often by men.

• Heart Palpitations: 11.9% of females vs. 4% of males
• Vomiting: 7.6% of females vs. Less than 1% of males
• Light Sensitivity: 17% of females vs. 8.8% of males
• Sleep Disruption: 24.6% of females vs. 40% of males

Menopause as a Factor

According to Dr. John Aucott, director of the Johns Hopkins Lyme Disease Clinical Research Center, the observed differences between men and women mirrored those seen in studies comparing pre-menopausal and post-menopausal women. “Males and females are different,” Dr. Aucott stated. “For both findings, the male group was more similar to females who had undergone menopause and more different from females who had not.”

Implications for Diagnosis and Future Research

These findings suggest that sex and menopausal status are crucial factors to consider when evaluating patients with early Lyme disease. Researchers emphasize the necessitate for further investigation to understand the underlying causes of these differences and their impact on time to diagnosis and the potential for long-term complications. Future research will focus on identifying the mechanisms, potentially involving hormone levels, driving these variations.

About Lyme Disease

Lyme disease is a bacterial infection transmitted through tick bites. According to the Centers for Disease Control and Prevention (CDC), approximately 476,000 Americans are diagnosed and treated for Lyme disease annually ¹. A common early symptom is a red, round skin lesion ¹.

Johns Hopkins Lyme Disease Research

The Johns Hopkins Medicine Lyme Disease Research Center is dedicated to pioneering patient-based multidisciplinary research in all aspects of Lyme disease ². Their mission is to bridge gaps in knowledge and translate research findings into improved patient care ². Researchers at Johns Hopkins Medicine have also undertaken retrospective analyses of Lyme disease cases referred to their infectious diseases clinic ⁴.

Sources:

1. EurekAlert!
2. Johns Hopkins Lyme Disease Research Center
3. Clinical and Experimental Medicine
4. Johns Hopkins Medicine – Tick Borne Diseases