BRD2 and insomnia measurement: Compared with the non-CPSP group, patients with CPSP at 3-month (Table 1) showed characteristics of being younger (49.43 years vs. 53.31 years, p = 0.002), having a lower BMI (24.1 kg/m2 vs. 25.3 kg/m2, p = 0.009), lower preoperative FSH levels (28.16 IU/L vs. 41.51 IU/L, p = 0.001), poorer preoperative sleep quality (a higher proportion of poor/severely poor sleep, p < 0.001), and a higher proportion of postoperative insomnia (63.9% vs. 34.9%, p < 0.001).