Distribution of q_TIR values from the SIDES simulation for galaxies with M_* > 10^10.45 and z < 1. The blue histogram is for lower limits of q_TIR and the black histogram is for direct detections. The black vertical line (behind the dashed red line) marks the median of the sample, as measured using survival analysis and the red dashed vertical line shows the true median. The slight overestimation of the median is caused by the greater number of lower limits compared to direct detections. The blue line is the CDF of the entire sample, measured using survival analysis.