1. Volume 103, Issue 3, Pages 456-462 (March 2009)
Cold temperature and low humidity are associated with increased occurrence of respiratory tract infections 
Tiina M. Mäkinen, Raija Juvonen, Jari Jokelainen, Terttu H. Harju, Ari Peitso, Aini Bloigu, Sylvi Silvennoinen-Kassinen, Maija Leinonen, Juhani Hassi 
Respiratory Medicine 
Volume 103, Issue 3, Pages (March 2009)
DOI: /j.rmed
Copyright © 2008 Elsevier Ltd Terms and Conditions

2. Figure 1
Relative odds (logarithmic scale) on common cold (upper panel) and LRTI (lower panel) by the mean of the average daily temperature of the three days preceding the onset of an infection. The shaded area represents the 95% confidence interval of the relative odds curve. Based on a generalized additive model with binomial error and identity link.
Respiratory Medicine  , DOI: ( /j.rmed )
Copyright © 2008 Elsevier Ltd Terms and Conditions

3. Figure 2
Relative odds (logarithmic scale) on common cold (upper panel) and LRTI (lower panel) by the mean of the absolute humidity (g/m−3) of the three days preceding the onset of an infection.
Respiratory Medicine  , DOI: ( /j.rmed )
Copyright © 2008 Elsevier Ltd Terms and Conditions