• Publications
  • Influence
Eco-efficiency of intensification scenarios for milk production in New Zealand
New Zealand (NZ) dairy farms used to be the lowest input and most efficient dairy farms of the world. However, intensification of the traditional pasture-based system has occurred over the lastExpand
  • 266
  • 25
Persisting mental health problems among AIDS-orphaned children in South Africa.
BACKGROUND   By 2008, 12 million children in sub-Saharan Africa were orphaned by AIDS. Cross-sectional studies show psychological problems for AIDS-orphaned children, but until now no longitudinalExpand
  • 156
  • 16
  • Open Access
Child-focused state cash transfers and adolescent risk of HIV infection in South Africa: a propensity-score-matched case-control study.
BACKGROUND Effective and scalable HIV prevention for adolescents in sub-Saharan Africa is needed. Cash transfers can reduce HIV incidence through reducing risk behaviours. However, questions remainExpand
  • 169
  • 10
  • Open Access
Transactional Sex Amongst AIDS-Orphaned and AIDS-Affected Adolescents Predicted by Abuse and Extreme Poverty
Little is known about impacts of familial AIDS on abuse and sexual health outcomes amongst adolescents. Objectives were to determine whether familial AIDS is: (1) associated with severe physical,Expand
  • 134
  • 7
  • Open Access
Child and Adolescent Suicide Attempts, Suicidal Behavior, and Adverse Childhood Experiences in South Africa: A Prospective Study.
PURPOSE This is the first known prospective study of child suicidal behavior in sub-Saharan Africa. Aims were to determine whether (1) cumulative exposure to adverse childhood experiences (ACEs)Expand
  • 80
  • 7
Pathways from parental AIDS to child psychological, educational and sexual risk: developing an empirically-based interactive theoretical model.
Increasing evidence demonstrates negative psychological, health, and developmental outcomes for children associated with parental HIV/AIDS illness and death. However, little is known about howExpand
  • 83
  • 6
  • Open Access
Risk and Protective Factors for Physical and Sexual Abuse of Children and Adolescents in Africa
There is now conclusive evidence of the major and long-lasting negative effects of physical and sexual abuse on children. Within Africa, studies consistently report high rates of child abuse, withExpand
  • 110
  • 6
  • Open Access
Physical, emotional and sexual adolescent abuse victimisation in South Africa: prevalence, incidence, perpetrators and locations
Background Physical, emotional and sexual abuse of children is a major problem in South Africa, with severe negative outcomes for survivors. To date, no known studies have used data directly obtainedExpand
  • 56
  • 6
  • Open Access
Bullying Victimisation, Internalising Symptoms, and Conduct Problems in South African Children and Adolescents: A Longitudinal Investigation
Bullying victimisation has been prospectively linked with mental health problems among children and adolescents in longitudinal studies in the developed world. However, research from the developingExpand
  • 49
  • 6
  • Open Access
Pathways to poor educational outcomes for HIV/AIDS-affected youth in South Africa
A recent systematic review of studies in the developing world has critically examined linkages from familial HIV/AIDS and associated factors such as poverty and child mental health to negative childExpand
  • 36
  • 6