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About me

I am currently a postdoctoral research fellow at the Department of Nutrition at Harvard T.H. Chan School of Public Health in Boston, USA, where I study the association between dietary patterns and cardiovascular disease among individuals with hypertension.

My doctoral thesis, which I defended in March 2014, covers the evaluation of two web-based food frequency questionnaires with regards to validity and reproducibility. The thesis also describes two prospective cohort studies on diet and physical activity in relation to the risk of contracting upper respiratory tract infection.


2008 MSc Nutrition, Stockholm University, Stockholm, Sweden

2014 PhD in nutritional epidemiology, Karolinska Institutet, Stockholm, Sweden

Research description


Raposo SE, Fondell E, Ström P, Bälter O, Bonn SE, Nyrén O, Plymoth A, Bälter K. Intake of vitamin C, vitamin E, selenium, zinc and polyunsaturated fatty acids and upper respiratory tract infection – a prospective cohort study. Eur J Clin Nutr. 2017; doi: 10.1038/ejcn.2016.261.

Sjörs C, Raposo SE, Sjölander A, Bälter O, Hedenus F, Bälter K. Diet-related greenhouse gas emissions assessed by a food frequency questionnaire and validated using 7-day weighed food records. Environ Health. 2016; doi: 10.1186/s12940-016-0110-7.

Trinh T, Christensen SE, Brand JS, Cuzick J, Czene K, Sjölander A, Bälter K, Hall P. Background risk of breast cancer influences the association between alcohol consumption and mammographic density. Br J Cancer. 2015; 113(1): 159-65.

Christensen SE, Moller E, Bonn SE, Ploner A, Balter O, Lissner L, Balter K. Relative validity of micronutrient and fiber intake assessed with two new interactive meal- and web-based food frequency questionnaires. Journal of Medical Internet Research. 2014;16(2):e59.

Christensen SE, Moller E, Bonn SE, Ploner A, Wright A, Sjolander A, Balter O, Lissner L, Balter K. Two new meal- and web-based interactive food frequency questionnaires: validation of energy and macronutrient intake. Journal of Medical Internet Research. 2013;15(6):e109.

Bonn SE, Trolle Lagerros Y, Christensen SE, Moller E, Wright A, Sjolander A, Balter K. Active-Q: validation of the web-based physical activity questionnaire using doubly labeled water. Journal of Medical Internet Research. 2012;14(1):e29.

Fondell E, Christensen SE, Bälter O, Bälter K. Adherence to the Nordic Nutritional Recommendations as a measure of healthy diet and upper respiratory tract infection. Public Health Nutrition. 2011;14(5):860-9.

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  • International Epidemiological Association World Congress of Epidemiology, August 2017, Saitama, Japan. "Diet Quality and Stroke Incidence among US Men with Hypertension"

  • Society for Epidemiologic Research (SER) Annual meeting, June 2017, Seattle, USA. "Diet quality and risk of CHD among US men with hypertension"

  • Cardiovascular Epidemiology Fellows and Trainees Forum, April 2017, Harvard T.H. Chan School of Public Health, Boston, USA. "Diet Quality in Relation to Coronary Heart Disease among US Men with hypertension"

  • ICDAM – 8th International Conference on Diet and Activity Methods, Rome, Italy, 2012. "The validity of micronutrient intake in a web-based food frequency questionnaire: Meal-Q"

  • FENS – 11th European Nutrition Conference, Madrid, Spain, 2011. "Meal-Q – A new meal-based FFQ on the web"

  • NEON - Swedish Network in Epidemiology and Nutrition, annual meeting, Oslo, Norway, 2009. "Meal-Q – A new web-based dietary assessment method"

  • ICN – 19th International Congress of Nutrition, Bangkok, Thailand, 2009. "Meal-Q – A new web-based dietary assessment method for children, teenagers and adults"

  • ICDAM – 7th International Conference on Diet and Activity Methods, Washington, USA, 2009. "Assessing the most frequently consumed dishes and food products in the adult Swedish population: a guide for the development of a meal-based web-FFQ"