Types of Phobias
The definition of agoraphobia is a fear of being outside or otherwise being in a situation from which one either cannot escape or from which escaping would be difficult or humiliating.
The fact that agoraphobia often occurs in combination with panic disorder makes it even more difficult to track how often it occurs. Other statistics about agoraphobia include that researchers estimate it occurs from less than 1% to almost 7% of the population. Its age of onset is most often during the mid to late 20s.