Comparison of extinction corrected UV luminosity weighted starburst ages to UV luminosity weighted ages from M23. Filled points indicate the sample used for all statistical analyses, i.e. excluding galaxies without double component Hα profiles and galaxies without upper limits in their Lyα observables; the latter are shown as open symbols. The one-to-one relation is indicated as a solid black line and we label the nine galaxies where the dust-corrected age estimate is larger than the new age estimate.