Caroline Criado-Perez said she is "immensely relieved" following the sentencing of her online abusers.
The feminist campaigner issued a statement on Twitter that said she didn't feel she could cope with being in court with Isabella Sorley and John Nimmo.
"I didn't feel sure that the judge would understand how terrifying and scarring the whole experience has been for me," she wrote.
"I feel immensely relieved that the judge clearly has understood the severity of the impact this abuse has had on me."
More top news
A company in the US says it has developed a hoverboard that you can ride while floating an inch above the ground.
The term 'photobomb' has been named the Word of the Year 2014 by lexicographers at Collins English Dictionary.
A Swiss supermarket has apologised for its "unforgivable blunder" after selling coffee cream with pictures of Hitler and Mussolini on.