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    3. Data overview | 
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    Age and sexFigure 3 demonstrates the distribution of age of patients included in this study. The median (range) age of this group of patients was 60 (16 to 95) years and 55% were male.  
        Figure 3. The age distribution of the study population (note that entry to the study was restricted to patients aged 16 or over) n=1,665 
 
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