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Mr Stephen Nash

Research Fellow
Education

Room
G13

LSHTM
Keppel Street
London
WC1E 7HT
United Kingdom

Tel.
020 7927 2111

I am a statistician; I completed my MSc in Medical Statistics at the School in 2013, and have subsequently worked at King's College (the Institute of Psychiatry) and UCL (the Cancer Trials Centre).

Prior to 2012 I worked for seven years as a communications and information manager for various charities providing support to people in prison, their families, and people seeking to resettle in the community after a custodial sentence.

Affiliations

Faculty of Epidemiology and Population Health
Department of Infectious Disease Epidemiology

Centres

Centre for Statistical Methodology

Teaching

I am currently employed to support Module Organisers prepare for online teaching. I have worked on three modules: STEPH (an introductory statistics module for ~250 students), Regression, and General Linear Models. The latter two are in the Medical Statistics department, and are taken by around 30 students on the Medical Statistics MSc.

Previously (2015-2019) I was a module co-leader on the Statistics for Epidemiology and Population Health (STEPH) module, which runs from October to December each year. My fellow co-leaders were Liz Allen and David Macleod.

Research

My current role is for education only. Previously (2015-2020) I divided my research time between two strands of work:

a) I provided statistical advice to the MRC Ugandan Virus Research Institute. In particular, I was the trial statistician for CHAPS, a novel study using an ex vivo HIV challenge of resected foreskin tissue to assess effecicy of PrEP. The trial is taking place in four sites across three countries (Uganda, South Africa, Zimbabwe).

b) I did methodological research. I have co-written two Stata commands: clan and slopepower, both available from the SSC server. The former performs cluster level analysis of a CRT, and can be used for binary, count, and Normal data. The latter is a sample size calculator for use in situations where the outcome is a rate over time, and you have previous data, which the program uses to estimate the covariance matrix, and hence allow more efficient trials to be planned.

Discipline
Statistics
Country
Uganda

Selected Publications

Comparison of HIV Risk Behaviors Between Clinical Trials and Observational Cohorts in Uganda.
Abaasa A; Nash S; Mayanja Y; Price MA; Fast PE; Kaleebu P; Todd J
2020
AIDS and behavior
HIV serostatus, inflammatory biomarkers and the frailty phenotype among older people in rural KwaZulu-Natal, South Africa.
Edwards A; Siedner MJ; Nash S; Neuman M; Danaviah S; Smit T; Gareta D; Kowal P; Seeley J
2020
African Journal of AIDS Research
A Practical Guide to Using Time-and-Motion Methods to Monitor Compliance With Hand Hygiene Guidelines: Experience From Tanzanian Labor Wards.
Gon G; Ali SM; Aunger R; Campbell OM; de Barra M; de Bruin M; Juma M; Nash S; Tajo A; Westbrook J
2020
Global health, science and practice
Birth attendants' hand hygiene compliance in healthcare facilities in low and middle-income countries: a systematic review.
Gon G; de Barra M; Dansero L; Nash S; Campbell OMR
2020
BMC health services research
See more Publications