{"value"=>"<p>Each study examines only two of the three variables within height, age, and nativity while the third variable is completely disregarded. For example, in the \"Age and nativity\" study below, height is the variable that is disregarded, meaning data shown represents men of all heights. The term \"United States soldiers\" does not refer specifically to United States Regulars but instead to United States men in the military relating to the groups of men above.</p> <p>Tables within each study are arranged by state of enlistment.</p>"}