Developer(s)StatsDirect Ltd
Stable release
Ver. 3.2.7 / May 30, 2019; 2 years ago (2019-05-30)
Operating systemWindows
TypeStatistical analysis

StatsDirect is a statistical software package designed for biomedical, public health, and general health science uses. The second generation of the software was reviewed in general medical[1] and public health journals.[2]

Features and use

StatsDirect's interface is menu driven and has editors for spreadsheet-like data and reports. The function library includes common medical statistical methods that can be extended by users via an XML-based description that can embed calls to native StatsDirect numerical libraries, R scripts, or algorithms in any of the .NET languages (such as C#, VB.Net, J#, or F#).[3]

Common statistical misconceptions are challenged by the interface. For example, users can perform a chi-square test on a two-by-two table, but they are asked whether the data are from a cohort (perspective) or case-control (retrospective) study before delivering the result. Both processes produce a chi-square test result but more emphasis is put on the appropriate statistic for the inference, which is the odds ratio for retrospective studies and relative risk for prospective studies.[4]


Professor Iain Buchan of the University of Manchester wrote a doctoral thesis on the foundational work and is credited as creator of the software.[5] Buchan said he wished to address the problem of clinicians lacking the statistical knowledge to select and interpret statistical functions correctly, and often misusing software written by and for statisticians as a result.

The software debuted in 1989 as Arcus, then Arcus ProStat in 1993, both written for the DOS platform.[6] Arcus Quickstat for Windows followed in 1999.[7] In 2000, an expanded version, StatsDirect, was released for Microsoft Windows.[1] In 2013, the third generation of this software was released, written in C# for the .NET platform.[3]

StatsDirect reports embed the metadata necessary to replay calculations, which may be needed if the original data is ever updated. The reproducible report technology follows the research object approach for replaying in "eLabs".[8]


  1. ^ a b Freemantle, Nick (16 December 2000). "CD: StatsDirect---Statistical Software for Medical Research in the 21st Century". BMJ. 321 (7275): 1536. doi:10.1136/bmj.321.7275.1536.
  2. ^ Lipp, Alastair (1 September 2002). "Stats Direct". Journal of Public Health. 24 (3): 242. doi:10.1093/pubmed/24.3.242.
  3. ^ a b "StatsDirect Technologies". StatsDirect Ltd. Retrieved 27 July 2014.
  4. ^ Davis, Cole (2013). Statistical Testing in Practice with StatsDirect. ISBN 978-1605944500.
  5. ^ Buchan, Iain Edward. "The Development of a Statistical Computer Software Resource for Medical Research (MD Thesis)" (PDF). University of Liverpool. Retrieved 3 May 2014.
  6. ^ Adler, Eric (March 1994). "Arcus Pro-Stat 3 (Short Reviews)". Personal Computer World: 306.
  7. ^ Sachdev, Harshi (October 1999). "Arcus Quickstat (Multimedia Review)". Indian Pediatrics. 36 (10): 1075–1076.
  8. ^ Bechhofer, Sean; Buchan, Iain; De Roure, David; Missier, Paolo; Ainsworth, John; Bhagat, Jiten; Couch, Philip; Cruickshank, Don; Delderfield, Mark; Dunlop, Ian; Gamble, Matthew; Michaelides, Danius; Owen, Stuart; Newman, David; Sufi, Shoaib; Goble, Carole (2013). "Why linked data is not enough for scientists" (PDF). Future Generation Computer Systems. 29 (2): 599–611. doi:10.1016/j.future.2011.08.004.((cite journal)): CS1 maint: uses authors parameter (link)