Open Access Research article

Mortality risk associated with underweight: a census-linked cohort of 31,578 individuals with up to 32 years of follow-up

Lucienne Roh1, Julia Braun1, Arnaud Chiolero23, Matthias Bopp1, Sabine Rohrmann1, David Faeh1* and for the Swiss National Cohort Study Group

Author Affiliations

1 Institute of Social and Preventive Medicine (ISPM), University of Zurich, Hirschengraben 84, 8001 Zürich, Switzerland

2 Institute of Social and Preventive Medicine (IUMSP), Lausanne University Hospital, Lausanne, Switzerland

3 Observatoire valaisan de la santé (OVS), Sion, Switzerland

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BMC Public Health 2014, 14:371  doi:10.1186/1471-2458-14-371

Published: 16 April 2014

Additional files

Additional file 1:

List of questions corresponding to the covariates used in the Cox regression models by study. Table S1. Specified cause of death of persons with underweight died from external causes (n = 20). Figure S1. Adjusted hazard ratios for all-cause mortality by BMI category. Table S2. Hazard ratios for cause specific mortality by BMI category and full adjustment. Table S3. Hazard ratios for cause specific mortality by BMI category and adjustment for age, age2, sex, study waves and smoking status. Table S4. Hazard ratios (all-cause mortality) without the first years of follow-up and with different follow-up time. Figure S2. Association of BMI with all-cause mortality (Hazard ratio) using a Cox model analysis with a cubic spline for BMI fitted to the pooled Data (A), measured BMI data (B) and self-reported BMI data (C). Figure S3. Hazard Ratios (all-cause mortality) with 95% confidence interval for the measured BMI data for interactions with BMI category. Figure S4. Hazard Ratios (all-cause mortality) with 95% confidence interval for the self-reported BMI data for interactions with BMI category. Table S5. Logistic regression model for not underweight vs. underweight.

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