Average differences ( CI 95 % ) and Pearson correlations for the temperature measured in the right ear , which was exposed to the different independent variables , and the left ear which was not exposed , were calculated at different times : ( 1 ) after 10 minutes compared to the baseline measurement ; ( 2 ) after 30 minutes compared to the 10 minutes measurement ; and ( 3 ) after 30 minutes compared to the baseline measurement .