1. Effects of Coffee Consumption, Smoking, and Hormones on Risk for Primary Sclerosing Cholangitis 
Ina Marie Andersen, Guro Tengesdal, Benedicte Alexandra Lie, Kirsten Muri Boberg, Tom Hemming Karlsen, Johannes Roksund Hov 
Clinical Gastroenterology and Hepatology 
Volume 12, Issue 6, Pages (June 2014)
DOI: /j.cgh
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2. Figure 1
Initiation of daily smoking in patients with PSC and control subjects. The proportions of control subjects (black line) and patients with PSC (dashed line) being ever daily smokers are plotted according to age, showing that initiation of smoking in general is an event early in life (<25 years). Individuals are censored (shown as vertical dots) at the age of the present study. For comparison, the grey line shows the proportion of the patients with PSC diagnosed with PSC at a given age, showing a median age at diagnosis of 34 years, making it unlikely that the no smoking status of patients with PSC is a consequence of acquiring PSC.
Clinical Gastroenterology and Hepatology  , DOI: ( /j.cgh )
Copyright © 2014 AGA Institute Terms and Conditions

3. Figure 2
Relationship between number of children and age at PSC diagnosis. The figure shows the age at diagnosis of PSC (n = 69 female patients) according to the number of children born before the diagnosis, showing a strong linear relationship between these variables (r = 0.63; P < .001).
Clinical Gastroenterology and Hepatology  , DOI: ( /j.cgh )
Copyright © 2014 AGA Institute Terms and Conditions