The effect of frailty on mortality and functional outcomes in spontaneous intracerebral haemorrhage

Limited data in patients with spontaneous intracerebral haemorrhage (SICH) showed that frailty was associated with mortality; however, there was insufficient data on functional outcomes. This study aimed to investigate the effect of frailty on overall mortality and 90-day functional outcomes in SICH. We conducted a retrospective study of 1223 patients diagnosed with SICH from January 2014 to December 2020. Frailty was defined as a clinical frailty scale (CFS) score of 4–9. Binary cut-offs were defined using receiver operating curve analysis. 90-day poor functional outcomes (PFO) were defined as modified Rankin Scale (mRS) ≥3, and utility-weighted mRS (UW-mRS) were based on previous validated studies respectively. Regression analyses were conducted to investigate the association between frailty and outcomes. Confounders adjusted for included demographics, cardiovascular risk factors and haematoma characteristics. 1091 patients met the inclusion criterion. 167 (15.3 %) had 30-day mortality and 730 (66.9 %) had 90-day PFO. Frailty was significantly associated with lower overall survival (HR: 1.54; 95 % CI: 1.11–2.14, p=0.010), 90-day PFO (OR: 1.90; 95 % CI: 1.32–2.74; p