One possible reason for improved survival is that seniors living in closer neighborhoods have others looking out for them who can get help sooner if they start experiencing stroke symptoms.

One significant difference between the two syndromes is that children with marasmus are twice as likely to survive malnutrition as those with kwashiorkor.

Pancreatic cancer has a low survival rate partly because its symptoms, which can include jaundice, often don't show up until the cancer is advanced and untreatable by surgery.