How long was Terri Schiavo in a persistent vegetative state before the decision was made by her husband to remove her feeding tube?

Terri Schiavo was in a persistent vegetative state for approximately 15 years before her husband, Michael Schiavo, made the decision to remove her feeding tube. She suffered cardiac arrest in 1990, leading to her condition, and the legal battles over her care and wishes continued until the tube was finally removed in March 2005. The case drew significant media attention and public debate regarding end-of-life issues.