Left: Fraction of higher-L_[OIII]/M_★ (log L_[OIII]/M_★ > 29.5) optical AGNs as a function of Σ_{SFR, 1 kpc}, among objects with 10.5 < log M_★ < 12. The y-axis error bars represent the 1σ confidence interval of AGN fraction from bootstrapping. The x-axis error bars represent the 16th and 84th percentiles of the Σ_{SFR, 1 kpc} values. The gray shaded region represents the Σ_{SFR, 1 kpc} range where optical AGN selection is considerably affected by contamination from star formation (see Sect. 4.1 for details). Right: Similar to the left panel, but for the fraction of lower-L_[OIII]/M_★ (log L_[OIII]/M_★ < 29.5) optical AGNs as a function of Σ_{SFR, 1 kpc} among 10.5 < log M_★ < 12 galaxies.