Figure 3.

HR and 95% CI of overall survival among ovarian cancer patients by (A) night bedtime; (B) wake-up time; (C) night sleep duration; (D) daytime napping duration; (E) total sleep duration; (F) PSQI score. Multivariable HRs and 95% CIs for overall survival among ovarian cancer patients across strata of various factors. Cox model was adjusted for age at diagnosis, body mass index, physical activity, electronic product use, smoking, alcohol drinking, tea drinking, education level, family income per month, menopausal status, parity, histological type, histopathologic grade, FIGO stage, residual lesions, comorbidities, and rotating night shift work. The red line and dashed line represented the estimated HRs and their 95% CIs, respectively. CI, confidence interval; HR, hazard ratio; PSQI, Pittsburgh sleep quality index.