Profilbild Nathalie Roos

Nathalie Roos


Om mig

1997-2003          MD, Uppsala University, Sweden

2004-2005          Master in public health (safety promotion and injury prevention

2006-2012          Residency OBGYN , Karolinska University Hospital Solna, Stockholm, Sweden

2008-2012          PhD, Department of women’s and children’s health, Karolinska Institutet

2013-2014          World Health Organization, Ouagadougou, Burkina Faso

2015-2019          World Health Organization, Geneva, Switzerland  

2019 -                 Researcher, Clinical epidemiology division, Karolinska Institutet, Stockholm, Sweden

I am a clinician with obstetrics and gynecology as my specialty and a special interest in perinatal epidemiology. I am also a global maternal and perinatal health expert with experience from low- and middle-income countries at both field- and global level, working on surveillance systems for maternal and perinatal mortality and birth defects and monitoring and evaluation of programs.

The period of around conception, pregnancy and childbirth is an important time window to detect and prevent disease in the mother and the infant. Clinical epidemiological research is of special interest as the findings may contribute to preventive strategies for healthy pregnancies, mothers and infants. I am interested in understanding adverse outcomes in women with polycystic ovary syndrome (PCOS), obesity and bariatric surgery and diabetes.


Prenatal exposures and birth indices, and subsequent risk of polycystic ovary syndrome: a national registry-based cohort study. Valgeirsdottir H, Vanky E, Sundstrom-Poromaa I, Roos N, Lovvik TS, Stephansson O, Wikstrom AK: BJOG 2019, 126(2):244-251.

Maternal Immunization and Antenatal Care Situation Analysis (MIACSA) study protocol: a multiregional, cross-sectional analysis of maternal immunization delivery strategies to reduce maternal and neonatal morbidity and mortality. Roos N, Lambach P, Mantel C MIACSA expert advisory panel group, et al. BMJ Open 2019;9:e024449. doi: 10.1136/bmjopen-2018-024449 

Implementing the WHO Safe Childbirth Checklist: lessons from a global collaboration. WRG Perry, S Bagheri Nejad, K Tuomisto, N Kara, N Roos, TR Dilip, LR Hirschhorn, I Larizgoitia, K Semrau, M Mathai, N Dhingra-Kumar. BMJ Glob Health 2017;2:e000241. doi:10.1136/bmjgh-2016-000241

Why do maternal and newborn deaths continue to occur? N Roos and S Ritter von Xylander. Best Practice & Research Clinical Obstetrics & Gynaecology (2016).

Pregnancy and perinatal outcomes in women with polycystic ovary syndrome and twin births: a population-based cohort study. T Shetelig-Løvvik, N Roos, AK Wikström, M Neovius, O Stephansson, E Vanky.  BJOG 2015 Mar 11. 

Outcomes of Pregnancy in Women with Prior Bariatric Surgery. K Johansson, S Cnattingius, INäslund, N Roos, Y Trolle-Lagerros, F Granath, O Stephansson, M Neovius, New England Journal of Medicine, 2015 Feb 26;372(9):814-24. 

Perinatal outcomes after bariatric surgery: nationwide population based matched cohort study. Roos N, Neovius M, Cnattingius S, Trolle Lagerros Y, Sääf M, Granath F, Stephansson O. BMJ. 2013 Nov 12;347:f6460.

Risk of adverse pregnancy outcomes in women with polycystic ovary syndrome: populations-based cohort study. Roos N, Kieler H, Sahlin L, Ekman-Ordeberg G, Falconer H, Stephansson O. BMJ. 2011 Oct 13;343:d6309.

Maternal risk factors for postterm pregnancy and cesarean delivery following labor induction. Roos N, Sahlin L, Ekman-Ordeberg G, Kieler H, Stephansson O. Acta Obstet Gynecol Scand. 2010 Aug;89(8):1003-10.

Ultrasound Pregnancy Dating Leads to Biased Perinatal Morbidity and Neonatal Mortality Among Post-term-born Girls. Skalkidou A, Kieler H, Stephansson O, Roos N, Cnattingius S, Haglund B. Epidemiology, 2010 Nov;21(6):791-6.

The Stockholm classification of stillbirth. Varli IH, Petersson K, Bottinga R, Bremme K, Hofsjö A, Holm M, Holste C, Kublickas M, Norman M, Pilo C, Roos N, Sundberg A, Wolff K, Papadogiannakis N. Acta Obstet Gynecol Scand. 2008;87(11):1202-12.