Dependence of the multiplicity fraction of different mass regimes on metallicity. The B-type studies at different metallicities are represented by blue circles; Z_SMC = 0.2 Z_⊙ (this work), Z_LMC = 0.5 Z_⊙ (Dunstall et al. 2015), Z_MW = Z_⊙ (Kobulnicky et al. 2014; Banyard et al. 2022). The best fit to the data with the 68% confidence interval is represented by the blue line and shaded area. Red squares show the sample of G- and K-type dwarfs from Badenes et al. (2018), whereas red diamonds correspond to the combined data of five solar-type samples presented by Moe et al. (2019), see details in main text. The dashed purple line is the linear regression found by Sana et al. (2025) for the BLOeM O-type stars (purple triangles), included for comparison.