Revenues for hotel spas in Dubai have risen by 45.5% in Q1 2010, Ernst and Young has revealed. Revenue per Available Treatment Room Hour (RevPATH) in Q1 2010 stood at Dhs77, a 5.5% increase from the previous year. Year-to-Date utilisation of treatment room hours also increased to 25% in Q1 2010 from 24% the previous year.