Background and activities


M.Sc., Industrial mathematics, NTNU, 1983

Ph.D., statistics, NTNU, 1988



Veierød, M., Lydersen, S., Laake. P. (editors) 2012: ”Medical Statistics in Clinical and Epidemiological Research". Gyldendal Akademisk Forlag, Oslo.

Fagerland, M., Lydersen, S., & Laake, P. 2017. Statistical Analysis of Contingency Tables Chapman and Hall/CRC


Selected publications:

(For complete list klick here)

Lydersen, S. (2022). Multiple Imputation of Missing Data. Tidsskr Nor Legeforen, 141(2).

Stensvold, D., Viken, H., Steinshamn, S. L., Dalen, H., Støylen, A., Loennechen, J. P., Reitlo, L. S., Zisko, N., Bækkerud, F. H., Tari, A. R., Sandbakk, S. B., Carlsen, T., Ingebrigtsen, J. E., Lydersen, S., Mattsson, E., Anderssen, S. A., Fiatarone Singh, M. A., Coombes, J. S., Skogvoll, E., Vatten, L. J., Helbostad, J. L., Rognmo, Ø., & Wisløff, U. (2020). Effect of exercise training for five years on all cause mortality in older adults-the Generation 100 study: randomised controlled trial. BMJ, 371, m3485.

Lydersen, S. (2020). Should we adjust for background variables in a randomised controlled trial? Tidsskr Nor Legeforen, 140(5).

Lydersen, S. (2020). Samsvar mellom observatører – eller interobservatørsamsvar? Tidsskr Nor Legeforen, 140(5).

Lydersen, S. 2017. Hva er sannsynligheten for riktig resultat av en diagnostisk test? Tidsskrift for Den norske legeforening, 137, (18) 1437

Prestmo, A., Hagen, G., Sletvold, O., Helbostad, J.L., Thingstad, P., Taraldsen, K., Lydersen, S., Halsteinli, V., Saltnes, T., Lamb, S.E., Johnsen, L.G., & Saltvedt, I. 2015. Comprehensive geriatric care for patients with hip fractures: a prospective, randomised, controlled trial. Lancet, 385, (9978) 1623-1633

Lydersen, S. 2015. Statistical review: frequently given comments. Ann.Rheum.Dis., 74, (2) 323-325

Fagerland, M. W., Lydersen, S., & Laake, P. 2015. Recommended confidence intervals for two independent binomial proportions. Statistical Methods in Medical research, 42, (2) 224-254

Strand, K.M., Heimstad, R., Iversen, A.C., Austgulen, R., Lydersen, S., Andersen, G.L., Irgens, L.M., & Vik, T. 2013. Mediators of the association between pre-eclampsia and cerebral palsy: population based cohort study. BMJ, 347, f4089

Lydersen, S., Langaas, M., & Bakke, Ø. 2012, "The Exact Unconditional z-pooled Test for Equality of Two Binomial Probabilities: Optimal Choice of the Berger and Boos Confidence Coefficient", Journal of Statistical Computation and simulation, vol. 82, no. 9, pp. 1311-1316.

Lydersen, S., Fagerland, M. W., & Laake, P. 2009, "Tutorial in biostatistics: Recommended tests for association in 2x2 tables", Statistics in Medicine.

Lydersen, S. 2007, "The human sex ratio in New York did not change after 11 September 2001". Human Reproduction.

Lydersen, S., Pradhan, V., Senchaudhuri, P., & Laake, P. 2007 "Choice of test for association in small sample unordered rxc tables". Statistics in Medicine.

Lydersen, S., Pradhan, V., Laake, P., & Senchaudhuri, P. 2005, "Power Comparison of Exact Tests for Association in Unordered rxc Contingency Tables Using standard, Mid p, and Randomized Test Versions.", Journal of Statistical Computation and simulation, vol. 75 (6), pp. 447-458.

Lydersen, S. & Laake, P. 2003, "Power comparison of two-sided exact tests for association in 2 x 2 contingency tables using standard, mid p and randomized test versions", Stat.Med., vol. 22, no. 24, pp. 3859-3871.

Lydersen, S. 1992, "Clayton's Model for Dependent Components in Systems Reliability", Reliability Engineering and Systems Safety, vol. 36, pp. 53-58.

Lydersen, S. & Rausand, M. 1987, "A systematic Approach to Accelerated Life Testing.", Reliability Engineering, vol. 18, no. 4.


Editorial work:

Lydersen, S., Hansen, G. K, Sandtorv, H. (editors) 1998: "Safety and Reliability". Proceedings of the European Conference on Safety and Reliability - ESREL'98, Trondheim 16 - 19 June 1998. Balkema Publishers, Rotterdam.

Lydersen, S. (red) 2004: "Fra flis i fingeren til ragnarok. Tjue historier om sikkerhet." Tapir akademisk forlag, Trondheim.


Scientific, academic and artistic work

A selection of recent journal publications, artistic productions, books, including book and report excerpts. See all publications in the database

Journal publications