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The University of Southampton
MedicinePostgraduate study

Mr Han (Alex) Zheng MSc

Postgraduate research student

Mr Han (Alex) Zheng's photo

Mr Han (Alex) Zheng passed his PhD viva within Medicine at the University of Southampton in May 2019 and is now working as a Data Scientist in Industry in China.

Han completed his Bachelor Degree of Medicine in his home country China, and worked as a medical intern in Shanghai Changzheng Hospital for one year.

Having found his passion in both medicine and statistics, Han decided to choose medical statistics as his future career. He gained his MSc in Statistics with Application in Medicine at University of Southampton, and continued doing his PhD in Primary Care and Population Science.


Bachelor of Medicine, Southeast University, China (2013)
MSc Statistics with Application in Medicine, University of Southampton (2014)

Research interests

Research Interests

Falls events caused by Parkinson’s disease and other risk factors

PhD Research

Falling is a major aspect of health and wellbeing, can result in injuries and fractures, and is a precursor of loss of independence in the elderly and the move to institutional care. Postural instability, which is a common clinical manifestation of Parkinson's disease, leading to frequent falls, significantly reduces the quality of life for the patients.

Traditional analysis examines the proportion of people who fall in a stated period of time in a logistic regression model. Over the last fifteen years, negative binomial models are becoming increasingly popular for the count data. Unlike a Poisson model, a negative binomial model includes random subject effects and producing relative rates of falling. Typically people might report falling zero, once or perhaps two times a year, but some people in these patient groups at high risk of falling report very large numbers of falls, maybe over 1000 a year. The over-dispersed data may fit a negative binomial model better than a Poisson model. This study aims to show the risk factors related to the occurrence of falling, and the methods for preventing.

PhD title: ‘Negative binomial models for falls data in Parkinson’s disease and other groups at high risk of falling.’

Supervisors: Dr Ruth Pickering (Medical Statistics Group), Dr Alan Kimber (Mathematics), Dr Emma Stack (Faculty of Medicine).

Research group

Primary Care, Population Sciences and Medical Education

Mr Han (Alex) Zheng
Primary Care, Population Sciences and Medical Education
Faculty of Medicine
University of Southampton
Southampton General Hospital
Level C, South Academic Block
Tremona Road
Southampton SO16 6YD
Tel 023 8120 6350

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