LOS ANGELES (UPI) -- U.S. actress Christina Applegate says she's "100 percent" free of breast cancer after undergoing a double mastectomy.

Applegate, star of ABC comedy "Samantha Who?" told the network's "Good Morning America" Tuesday, "I'm clear. Absolutely 100 percent clear and clean. It did not spread -- they got everything out, so I'm definitely not going to die from breast cancer."

Applegate said she faced a hard choice in dealing with her breast cancer. Because she wanted to make sure there would be no chance of a recurrence, and since she tested positive for the BRCA1 breast cancer gene, the actress said she opted to have both her breasts removed even though cancerous lumps were found in only one of them, ABC reported.

"My decision, after looking at all the treatment plans that were possibilities for me, the only one that seemed the most logical and the one that was going to work for me was to have a bilateral mastectomy," Applegate told the network.