As a result of interviewing women in-depth about their experiences of psychological abuse/coercive control by their male partners, I (Clare Murphy PhD) developed a new power and control wheel. The wheel expands upon the Duluth Wheel to include a wider range of non-physical tactics of power and control.
A New Zealand study carried out for ACC — described in the reference below — identified that domestic violence may account for as much as 12% of psychological distress and 7% of physical illness among adult women in New Zealand.
Reference: Kazantzis, N., R. A. Flett, et al. Domestic Violence, Psychological Distress and Physical Illness Among New Zealand Women: Results from a community based study. New Zealand Journal of Psychology 2000 29  67 -73.