Comparison between the infrared star-formation rates, SFRs_IR, and the total and accretion radio luminosities at 150 MHz. Left: SFRs_IR of the median quasar samples versus their total radio luminosities at 150 MHz. Error bars on the x-axis indicate 1σ errors on the SFRs_IR, while y-axis error bars for LOFAR quasars stacked according to their radio luminosity denotes the bin size used. The dashed line is the far-infrared radio correlation (FIRC) at L_150 MHz derived by Calistro-Rivera et al. (2017). The gray shaded region indicates the spread of the FIRC scaled by a factor of ±2. Right: SFR_IR versus the radio luminosity associated with AGN accretion, L_{150MHz, acc}. The radio luminosity connected to AGN accretion is calculated by subtracting the contribution of SF to the total radio luminosity estimated using the FIRC. Negative AGN feedback could be taken place in the hosts of RDQs with the highest 150 MHz radio luminosities due to their radio-emission being dominated by AGN accretion, and the relative lower SFR_IR.