TIMP4 and sexually transmitted disease: YcDNA detection was associated with elevated concentrations of MMP-2 (β = 0.419; CI 0.084, 0.753; P = 0.015), and TIMP-4 (β = 0.328; CI 0.042, 0.614; P = 0.025; Figure 1B) after adjusting for age, any STI, Nugent Score, the number of vaginal sex acts in the past 30 days, inflammation status, and randomization arm.