Relationship between the global log(O/H) and the SFR for our sample color-coded for different stellar mass bins. In the upper panel, metallicities are calculated using the empirical calibration by Dopita et al. (2016), while in the lower panel, metallicities are determined via the calibration by Pettini & Pagel (2004). On average, the correlation coefficients between log(O/H) and SFR are −0.17 for the upper panel and −0.75 for the lower panel.