ALB and hip fracture: However, the use of antiosteoporosis drugs (OR = 0.243, 95%CI = 0.131–0.451, p < 0.001), the duration of antiosteoporosis drug therapy (OR = 0.564, 95%CI = 0.283–0.830, p = 0.003) and serum albumin levels of ≥35 g·L−1 (OR = 0.413, 95%CI = 0.194–0.881, p = 0.022) were determined to be independent protective factors for recurrent hip fractures following primary osteoporotic hip fractures surgery (Table 2).