<div dir="ltr"><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;color:rgb(0,0,0)"><span style="color:rgb(32,33,36);font-family:Roboto,arial,sans-serif">About 3.4 million people, or 13.9 </span><b style="color:rgb(32,33,36);font-family:Roboto,arial,sans-serif">percent</b><span style="color:rgb(32,33,36);font-family:Roboto,arial,sans-serif"> of the population age 71 and </span><b style="color:rgb(32,33,36);font-family:Roboto,arial,sans-serif">older</b><span style="color:rgb(32,33,36);font-family:Roboto,arial,sans-serif">, have some form of </span><b style="color:rgb(32,33,36);font-family:Roboto,arial,sans-serif">dementia</b><span style="color:rgb(32,33,36);font-family:Roboto,arial,sans-serif">, the study found. As expected, the prevalence of </span><b style="color:rgb(32,33,36);font-family:Roboto,arial,sans-serif">dementia</b><span style="color:rgb(32,33,36);font-family:Roboto,arial,sans-serif"> increased dramatically with age, from five </span><b style="color:rgb(32,33,36);font-family:Roboto,arial,sans-serif">percent</b><span style="color:rgb(32,33,36);font-family:Roboto,arial,sans-serif"> of those aged 71 to 79 to 37.4 </span><b style="color:rgb(32,33,36);font-family:Roboto,arial,sans-serif">percent</b><span style="color:rgb(32,33,36);font-family:Roboto,arial,sans-serif"> of those age 90 and </span><b style="color:rgb(32,33,36);font-family:Roboto,arial,sans-serif">older</b><span style="color:rgb(32,33,36);font-family:Roboto,arial,sans-serif">.</span><br></div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;color:rgb(0,0,0)"><span style="color:rgb(32,33,36);font-family:Roboto,arial,sans-serif"><br></span></div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;color:rgb(0,0,0)"><span style="color:rgb(32,33,36);font-family:Roboto,arial,sans-serif">How about them 90 year olds?  Almost 2/3rds functioning well.  Of course one does not get to be 90 without being in good health, as a general rule.  Surely the percentages would be higher if those with simple cognitive decline, such as mild memory problems were included.  (I am assuming that 'dementia' does not include those.)</span></div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;color:rgb(0,0,0)"><span style="color:rgb(32,33,36);font-family:Roboto,arial,sans-serif"><br></span></div><div class="gmail_default" style="font-family:"comic sans ms",sans-serif;color:rgb(0,0,0)"><span style="color:rgb(32,33,36);font-family:Roboto,arial,sans-serif">bill w</span></div></div>