Dr Joanna B Broad

BA in Statistics and Management Studies, MPH in Epidemiology, and PhD in Population Health


Joanna Broad has been conducting research for over 20 years and mainly in chronic conditions that impact older people. Supported by research grants mainly from the Health Research Council (New Zealand), the National Science Challenge Ageing Well scheme, and charitable funders (total over $7.4m), she has published over 100 research papers.

Most recently she is leading a group investigating aspects of diverticular disease that impact on its care and on self-management and in the health of residents in retirement villages in Auckland. Other large research topics have included long-term care of older people, estimation and management of cardiovascular risk, health services, epidemiology of stroke and stroke rehabilitation.

She has sat on Health Research Council Public Health Assessing Committees and a charitable organisation research grant committee. Joanna enjoys supervising students to address research questions that fill knowledge gaps and to inform future research. From starting in roles to which she brought broad analytical, quantitative, methodological and research management skills, she is now an epidemiologist leading her own research programme and participating in several international research collaborations. 

Research | Current

Current research topics include using routinely-collected data to investigate:

  • Epidemiology of diverticular disease, especially as a chronic condition
  • Trends in place of death around the world, particularly use of long-term care facilities
  • Polypharmacy in older people, and its management
  • Health of residents of retirement villages in New Zealand

Previous topics: 

  • Co-investigator in studies of residential long-term care of older people - describing population aspects of use of residential aged care and other health-related aspects arising from population ageing, including new ways of using existing data
  • Co-investigator in ARCHUS and ARCHIP, trials of complex multi-disciplinary interventions in long-term care facilities, aiming to reduce acute hospitalisations
  • Associate Investigator in LiLACs NZ, a bicultural longitudinal study of New Zealand octogenarians
  • Co-investigator in estimation of cardiovascular risk (PREDICT)
  • Epidemiology of stroke in Auckland (ARCOS)
  • Co-investigator of trial of melatonin to improve sleep of older people (PROMISE) 

Teaching | Current

Produces a resource on the epidemiology of ageing and health service use in New Zealand for medical students. 

Supervises masters students and summer students.

Postgraduate supervision

Masters supervision - research topics have included

  • predicting outcomes for those with congestive heart failure
  • projecting need for dementia care beds, and
  • assessing trends in incidence of hip fractures including assessing the impact of Canterbury earthquakes on hip fractures 
  • polypharmacy in vulnerable older people in NZ 

Areas of expertise

  • epidemiologic methods
  • study management and conduct (surveys, trials, cohort and longitudinal studies) 
  • biostatistical methods

Committees/Professional groups/Services

  • Member, organising committee Celebrating Ageing Research (U21 Graduate Research Conference) 2014
  • Member, Palliative Care Council Advisory Group 2011 – 2014
  • Member, organising committee Ageing Conference (Age Concern and the NZ Society of Gerontology) 2009
  • Consultant to WHO non-communicable disease STEPS project 2004 – 2005
  • Instigator and Organiser School of Population Health Weekly Seminar Series 2003 – 2004
  • Member of Health Research Council Public Health Assessing Committees 2002 – 2005 
  • Co-organiser, Biostatistics workshop on analysing data with issing values 2001
  • Organiser, Biostatistics workshop on modelling medical data using generalised linear models 2000
  • Organiser, Biostatistics Workshop on analysis of survival data 1999 
  • Co-organiser, Biostatistics Workshop on analysis of longitudinal data 1998 

Selected publications and creative works (Research Outputs)

As of 29 October 2020 there will be no automatic updating of 'selected publications and creative works' from Research Outputs. Please continue to keep your Research Outputs profile up to date.


Contact details

Alternative contact

I was located in the University's Department of Geriatric Medicine on the North Shore Hospital site, but with the exception of few ongoing research projects, am now retired. 


Primary office location

Level 1, Room 1023
New Zealand

Web links