highly significantp -values < 0.005
Differences were defined as ‘not significant’ in cases with p -values > 0.1, as ‘tendentially significant’ (significant *) with p -values between 0.1 and 0.05, as ‘significant’ (significant **) with p -values between 0.05 and 0.005 and as ‘highly significant’ (significant ***) with p -values < 0.005.