Interesting that in the anxietypanichealth site the statistics say women are three times as likely to experience panic attacks. Could the stats be skewed because, perhaps, women are more likely to report the occurrence whereas men might think it's a weakness and keep mum?
Also, the author makes reference to a prevailing lower education level. Hmmm. I take offense. Where was the study done? At a street clinic? At a university? Was it longitudinal? Conducted in a lab atmosphere? A pen/paper quiz?