Data and linear fits shown in Fig. 2 including additional samples: Class II stars in the Cha I star-forming region (blue crosses; Mulders et al. 2017); massive Galactic clumps from the MALT90 survey (green crosses; Stephens et al. 2016); molecular clouds close to the Galactic center (green triangles; Kauffmann et al. 2017a); the central molecular zone (CMZ) in our Galaxy (orange squares; Longmore et al. 2013), regions within disks of other galaxies (orange circles; Usero et al. 2015), (U)LIRGS and star-forming galaxies (red crosses and red squares; García-Burillo et al. 2012; Usero et al. 2015). On the other hand, the accretion rates in Lupus and Cha I are plotted versus the stellar masses instead of the disk masses (black circles and crosses; Manara et al. 2016; Mulders et al. 2017).