A woman who attacked an elderly man with a hammer during a home invasion in Hastings has had her 12-year jail sentence reduced by 18 months on appeal.

Dominique Kerehoma Rachel Carroll and a teenage accomplice left Ian Noble for dead in his Hastings home in 2016.

Carroll was sentenced in the Napier District Court in 2017 after a jury found the then 30-year-old guilty of burglary with a weapon and wounding with intent to cause grievous bodily harm in a four-day trial.

Carroll's co-offender, Chanel Te Ana Allen, who was 17 at the time of the attack, was sentenced