APOL1 and osteogenesis imperfecta: In ALIVE (n = 440), carriage of two APOL1 variant alleles (3.9% in OI+ vs. 12.1% in OI−) was recessively associated with a decreased risk of OIs (OR = 0.29, P = 0.040; ORadj = 0.32, Padj = 0.044, Table 2).