math.su.se
Current research interests:
I do active research work in the areas:
My ambition is to combine
development of theoretical techniques and models in close connection to
applied problems.
For a long time I worked with statistical analysis of traffic and
traffic safety. Now I mostly work with applications
from biostatistics in a broad sense, spanning from genetics to clinical
trials and epidemiology. Presently I working on
understanding basic concepts in epidemic modelling and on methods for
inference from observations on epidemic processes.
I am a member of the network
S-GEM ( http:/www.s-gem.se ).
During
2001-2007 I was
engaged part time at Smittskyddsinstitutet
(The Swedish Institute for Infectious Disease Control)
as a
member of a statistics group within the department of epidemiology.
I participate in two EU
projects dealing with the development of models to analyse spread of
infections.
The two projects are MODELREL and INFTRANS. The aim of MODELREL is to
establish a co-ordinated
EU capability in (real-time) modelling to help counter deliberate
releases of biological agents, and potential
larger impact natural epidemics (e.g. pandemic flu). INFTRANS has
similar objectives with a more long-term
and research oriented focus.
I have supervised Ph.D and
master
thesis in the areas of genetical epidemiology,
cancer epidemiology, models for
epidemic spread, clinical trials and bioequivalence.
Recent Technical reports:
J. Lindbäck - Å. Svensson:
Campylobacter
infections in Sweden -A statistical analysis
of
temporal and spatial distributions of notified sporadic campylobacter
infections.
Research
report 2001-4, Dep Math Stat., Stockholm University. (Full
text in pdf-format)
Å. Svensson - G-P. Scalia-Tomba:
Competing epidemics in closed populations.
Reseach
report 2001-8, Dep
Math Stat, Stockholm University (Full
text in pdf-format)
Å Svensson: Diversity indices for
infectious strains. Research report 2002-5, Dep Math Stat,
Stockholm
University (Full
text in pdf-format)
Å Svensson: Compensating for
incomplete
ascertainment when calculating cluster measures,
Research
report 2002-6, Dep Math Stat, Stockholm
University (Full text in pdf-format)
Å. Svensson: Clusters of
Mycobacterium
tuberculosis isolates - remarks concerning the
comparability between populations and studies.
Research report 2002-5, Dep Math Stat,
Stockholm
University (Full
text in pdf-format)
Å. Svensson: Estimating
transition intensities in pure birth processes sampled in time.
Research report 2005-11, Dep Math
Stat, Stockholm University (Full text
in pdf-format)
Å. Svensson: A note on
generation times in epidemic models. Research report 2005-14,
Dep Math Stat, Stockholm
University (Full
text in pdf-format)
Publications:
[1] S. Erlander- J.
Gustavsson
- Å. Svensson: On Asymptotic simultaneous
confidence regions for regression planes in a Poisson model, 1972,
Vol. 40, No 2, pp 111-122, International Statistical Review.
[2a] Å. Svensson - H.
Jönrup: Effekten av hastighetsbegränsningar utanför
tätbebyggelse, 1972, STR, Meddelande nr 10.
[2b] Å. Svensson - Hans
Jönrup: Effects of Speed Limits Outside Built-Up Areas,
1972, The National Swedish Council on Road Safety Research. Bulletin 10.
[3] Å.
Svensson:
Experiences of speed restrictions in Sweden. In Traffic Speed
and Casualties - Epidemiological effects of traffic speed and speed
limitations
(ed. Nordentoft-Wallin-Nielsen). Odense University Press.
[4] J.
Gustavsson
- Å. Svensson: A Poisson regression model applied to classes
of road accidents with small frequencies, 1976, 3: 49-60, Scandinavian
Journal
of Statististics
[5] Å.
Svensson: An Equilibrium equation for road traffic, 1977, Vol. 12,
pp 309-313 Transportation Research.
[6] G.
Nilsson
- Å. Svensson:
Behov av och metoder för att beräkna
riskmått i
trafiken utifrån olycks- och exponeringsdata, 1980, NTR
Rapport
25:4 .
[7] Å.
Svensson: On a Goodness-of-Fit Test for Multiplicative Poisson Models,
1981, Vol. 9, No 4, 697-704,
[8] Å.
Svensson: On ?2-tests of goodness-of-fit for a class of discrete
multivariate
models, 1985, 3: 331-336, Statistics and Probability Letters.
[9] Å.
Svensson: Estimating effects in certain before-and-after studies, 1986,
13:39- 47, Scandinavian Journal of Statististics
edit.com/
[10] R. Sundberg -
Å.
Svensson: Developments in the theory of statistics-some
general aspects and chosen topics, 1987, SSS Jubileums konf (Ed
Kulldorff-
Stenlund)
[11] Å. Svensson:
Estimating in some counting process models with multiplicative
structure, 1989, Vol. 17, No 4, 1501-1508, Annals of Statistics.
[12] Å. Svensson:
Asymptotic inference for counting processes with parametric
intensities based on one realisation, 1990, 17: 23-33, Scandinavian
Journal
of Statististics
[13] Å. Svensson:
Asymptotic inference for multiplicative counting processes based
[
on one realisation, 1990, Vol. 33., No 1, 125-142, Journal of
Multivariate
Analysis.
[14] L Ehrenberg- G Ekman
- Å. Svensson: Epidemiological studies of geographic
variation of cancer incidence is Sweden, 1990, Vol. 29 Fasc 8, 961-969,
Acta Oncologica.
[15] Å. Svensson:
Analysing effects of vaccines, 1991, pp 407-412, Mathematical
Biosciences.
[16] V. Romanus -H.
Hallander
- Å. Svensson: The impact of changing BCG
coverage on tuberculosis incidence is Swedish-born children, 1992,
73, 150-161, Tubercle
edit.com/
[17] A. Blaxhult -
Å.
Svensson: Assessing the extent of the HIV epidemic in
Sweden, using information on the extent to which persons who develop
AIDS
are already known to be HIV- infected, 1992, 784- 791, International
Journal
of Epididemiology.
[18] B.
Christenssen
- M. Böttiger - Å. Svensson - S. Jeansson: A 15-year
surveillance study of antibodies to Herpes Simplex types 1 and 2 in a
cohort
of
young girls, 1992, 25, 147-154, Journal of Infection
[19] Å.
Svensson:
Dynamics of an epidemic in a closed population, 1992, 25,
303-313, Advances of Applied Probability.
[[
Bulletin of Mathematical Biology
[20] Å.
Svensson:
On the duration of a Maki-Thompson epidemic, 1993,117:
211-220, Mathematical Biosciences.
[21] M. Böttiger
- O. Gustavsson - Å. Svensson: Behov av kompletterande
vaccination mot difteri, 1994, Vol. 91, 4357-4361, Läkartidningen
[22] Å. Svensson:
On the asymptotic size and duration of a class of epidemic
models, 1995, 32, 11-24, Journal of Applied Probability.
[23] Å. Svensson:
On the simultaneous distribution of size and costs of an epidemic
in a closed multigroup population, 1995, 127:167-180, Mathematical
Biosciences.
[24] M. Böttiger
- O. Gustavsson - Å. Svensson: Det svenska polioskyddet är
bra,
[
1996, Vol. 93, Nr 3, 138-140, Läkartidningen.
[25] M. Böttiger
- O. Gustavsson - Å. Svensson: Äldre kvinnor har sämre
skydd
mot stelkramp, 1996, Vol. 93, Nr 8, 690-693, Läkartidningen.
[26] Å. Svensson-
M. Böttiger - O. Gustavsson : A survey of immunity in the
Swedish population - Diphtheria, Tetanus, and Poliomyelitis. 1998 ;27:
909-915, International Journal of Epidemiology.
[**********
[27] M. Böttiger
- O. Gustavsson - Å. Svensson: Immunity to tetanus, diphtheria
and poliomyelitis n the adult population in Sweden.. 1998 ;27: 916-925,
International Journal of Epidemiology.
[28] A. Färnert -
I. Rooth - Å. Svensson - G. Snounou- A. Björkman: Complexity
of
Plasmodium Falciparum infections is consistent over time and protects
against
clinical disease in Tanzanian children . 1999; 179: 989-995. Journal
of Infectious
Diseases.
[29] T. Asikainen - J. Giesecke
- Å. Svensson : Measles takes root in Sweden again.
Reduced vaccination will result in epidemics, about 25 000 cases are
expected
to
occur annualy within a 25 year period. 2003 Oct 2:100(40): 3126-30
Läkartidningen.
(in Swedish)
[30] K. Nygård - Y.
Andersson
- A. Rottingen - Å. Svensson - J. Lindbäck - T. Kistemann -
.J Giesecke: Association between
environmental
risk factors and
campylobacter
infections in Sweden. 2004; 132; 317-325. Epidemiology and
Infections.
[31] J.
Carriques-Mas -
Y. Andersson - M. Hjertqvist - Å. Svensson - A. Torner - J.
Giesecke
Risk factors for domestic sporadic campylobacteriosis among young
children in
Sweden. 2005, 37, 101-110, Scandinavian Journal
of Infectious Diseases.
[32]
L. Jörgensen - N. Hammar - J. Kaprio - M.
Koskenvuo - Å. Svensson: Migration and
smoking: An epidemiological study of Finnish twins
in Sweden. 2005;
33: 285-291,
Scandinavian Journal of Public health.
[33] A. Ternhag - A. Törner - Å.
Svensson - J. Giesecke - K. Ekdahl: Mortality following
Campylobacter
infection: a registry-based linkage study. 2005; 5:70.
BMC Infectious
Diseases.
[34] K.
Grabowska - L. Hogberg - P. Penttinen - Å. Svensson - K.
Ekdahl:
Occurrence of
invasive
pneumococcal disease and number of excess cases due to influenza.
2006; 6:58. BMC Infectious
Diseases
[35]
Å. Svensson: A note on generation times in epidemic
models. 2007; 208:300-311,
Mathematical
Biosciences
[36] B. Freiesleben de Blasio- Å.
Svensson - F. Liljeros: Preferential attachment
in sexual networks. June 2007, PNAS
[37] A. Ternhag - A. Törner - Å.
Svensson - K. Ekdahl - J. Giesecke: Short- and Long-term
Effects of Bacterial Gastrointestinal Infections.
2008; 14:1.
Emerging
Infectious
Diseases
[38]
A-S. Duberg - A. Törner - L. Daviðsdóttir
- S. Aleman - A. Blaxhult - Å. Svensson -
R. Hultcrantz - E. Bäck - K. Ekdahl: Cause of
death in individuals with chronic HBV
and/or HCV infection, a
nationwide community-based register study. 2008;
15:7,
538-550, Journal of Viral Hepatatis
[39] S. Boqvist - H. Pettersson - Å.
Svensson - Y. Andersson: Sources of sporadic Yersinia
enterocolitica infection in children in Sweden, 2004
- a case-control study. 2009;
137, 897-905, Epidemiology
and Infection
[40] N. Shaban - M. Andersson - Å.
Svensson - T. Britton: Networks, epidemics and
vaccination through contact tracing. 2008, 216:1, 1-8, Mathematical
Biosciences
[41] P. Geli - M. Andersson - Å. Svensson
- D. Andersson: A multi-type
branching model
with varying environment for bacterial dynamics with
postantibiotic effect. 2009;
256:1,
56-84, Journal of Theoretical Biology
[42] N. Shaban - M. Andersson -
Å. Svensson - T. Britton: Household Epidemics: Modelling
Effects of Early Stage Vaccination Source. 2009;
51:3 , 408-419, Biometrical Journal
[43]
M. Camitz - Å. Svensson: The Effect of Time Distribution
Shape on a Complex
Epidemic Model. 2009; 71: 1902-1913, Bulletin of Mathematical Biology
[44] G. Scalia Tomba - Å.
Svensson - T. Asikainen - J. Giesecke: Some model based
considerations on observing generation times for
communicable diseases.
2010; 223: 24-31, Mathematical
Biosciences
[45] A. Törner - A-S.
Duberg - P. Dickman - Å. Svensson: A proposed method to adjust
for
selection bias in cohort studies. 2010; 171:
602-608, American Journal of
Epidemiology
[46] A. Törner - P.
Dickman - A-S.
Duberg - S. Kristinsson - O. Landgren - M. Björkholm - Å. Svensson:
A Method to Visualize and Adjust for Selection Bias
in Prevalent Cohort Studies.
2011; 174: 969-976,
American Journal of
Epidemiology