Blake, Helen A; Leyrat, Clemence; Mansfield, Kathryn E; Seaman, Shaun; Tomlinson, Laurie A; Carpenter, James; Williamson, Elizabeth J; (2019) Propensity scores using missingness pattern information: a practical guide. ArXiv. https://arxiv.org/abs/1901.03981 (Unpublished)

Blake, Helen A; Leyrat, Clémence; Mansfield, Kathryn E; Seaman, Shaun; Tomlinson, Laurie A; Carpenter, James; Williamson, Elizabeth J; (2020) Propensity scores using missingness pattern information: a practical guide. Statistics in Medicine, 39 (11). pp. 1641-1657. ISSN 0277-6715 DOI: https://doi.org/10.1002/sim.8503

Blake, Helen A; Leyrat, Clémence; Mansfield, Kathryn E; Tomlinson, Laurie A; Carpenter, James; Williamson, Elizabeth J; (2020) Estimating treatment effects with partially observed covariates using outcome regression with missing indicators. Biometrical Journal, 62 (2). pp. 428-443. ISSN 0323-3847 DOI: https://doi.org/10.1002/bimj.201900041

Blake, Helen A; Sharples, Linda D; Boyle, Jemma M; Kuryba, Angela; Moonesinghe, Suneetha R; Murray, Dave; Hill, James; Fearnhead, Nicola S; van der Meulen, Jan H; Walker, Kate; (2024) Improving risk models for patients having emergency bowel cancer surgery using linked electronic health records: a national cohort study. International journal of surgery, 110 (3). pp. 1564-1576. ISSN 1743-9191 DOI: https://doi.org/10.1097/JS9.0000000000000966

Blake, Helen A; Sharples, Linda D; Harron, Katie; van der Meulen, Jan H; Walker, Kate; (2021) Probabilistic linkage without personal information successfully linked national clinical datasets. Journal of clinical epidemiology, 136. pp. 136-145. ISSN 0895-4356 DOI: https://doi.org/10.1016/j.jclinepi.2021.04.015

Blake, Helen A; Sharples, Linda D; Harron, Katie; van der Meulen, Jan H; Walker, Kate; (2022) Linkage of multiple electronic health record datasets using a 'spine linkage' approach compared with all 'pairwise linkages'. International Journal of Epidemiology, 52 (1). pp. 214-226. ISSN 0300-5771 DOI: https://doi.org/10.1093/ije/dyac130

Boyle, Jemma M; Kuryba, Angela; Blake, Helen A; Aggarwal, Ajay; van der Meulen, Jan; Walker, Kate; Braun, Michael; Fearnhead, Nicola; (2021) The impact of the first peak of the COVID-19 pandemic on colorectal cancer services in England and Wales: A national survey. Colorectal disease, 23 (7). pp. 1733-1744. ISSN 1462-8910 DOI: https://doi.org/10.1111/codi.15622

Kuryba, Angela J; Vallance, Abigail E; Boyle, Jemma M; Braun, Michael S; Blake, Helen A; van der Meulen, Jan; Fearnhead, Nicola S; Walker, Kate; (2022) Outcomes of colorectal cancer resection in patients with inflammatory bowel disease: a national population-based analysis in England and Wales. Colorectal Disease, 24 (8). pp. 965-974. ISSN 1462-8910 DOI: https://doi.org/10.1111/codi.16133

Kuryba, Angela; Boyle, Jemma M; Blake, Helen A; Aggarwal, Ajay; van der Meulen, Jan; Braun, Michael; Walker, Kate; Fearnhead, Nicola S; (2021) Surgical Treatment and Outcomes of Colorectal Cancer Patients During the COVID-19 Pandemic: A National Population-based Study in England. Annals of Surgery Open, 2 (2). e071-. ISSN 2691-3593 DOI: https://doi.org/10.1097/AS9.0000000000000071

Lakhoo, Darshnika Pemi; Blake, Helen Abigail; Chersich, Matthew Francis; Nakstad, Britt; Kovats, Sari; (2022) The Effect of High and Low Ambient Temperature on Infant Health: A Systematic Review. International Journal of Environmental Research and Public Health, 19 (15). p. 9109. ISSN 1661-7827 DOI: https://doi.org/10.3390/ijerph19159109

Price, Malcolm J; Blake, Helen A; Kenyon, Sara; White, Ian R; Jackson, Dan; Kirkham, Jamie J; Neilson, James P; Deeks, Jonathan J; Riley, Richard D; (2019) Empirical comparison of univariate and multivariate meta-analyses in Cochrane Pregnancy and Childbirth reviews with multiple binary outcomes. Research Synthesis Methods, 10 (3). pp. 440-451. ISSN 1759-2879 DOI: https://doi.org/10.1002/jrsm.1353

Tazare, John; Henderson, Alasdair D; Morley, Jessica; Blake, Helen A; McDonald, Helen I; Williamson, Elizabeth J; Strongman, Helen; (2024) NHS national data opt-outs: trends and potential consequences for health data research. BJGP open, 8 (3). BJGPO.2024.0020-BJGPO.2024.0020. ISSN 2398-3795 DOI: https://doi.org/10.3399/BJGPO.2024.0020

Blake, HA; (2020) Dealing with partially observed covariates in propensity score analysis of observational data. PhD thesis, London School of Hygiene & Tropical Medicine. DOI: https://doi.org/10.17037/PUBS.04656433