Figures
- FIGURE 1
a) Daily measurements of neural respiratory drive index (NRDI) and Exacerbations of Chronic Pulmonary Disease Tool (EXACT) score, respiratory rate (fR) and peripheral oxygen saturation (SpO2) at admission (A), discharge (D) and at home for 30-days post-discharge or until hospital readmission (1–30 days) for each patient (1–12). Dashed lines indicate the day of EXACT-defined recovery, if reached (9-point reduction from peak score sustained for 7 days [9]), dotted lines indicate a day of healthcare utilisation, with light grey bars representing hospital readmission (subjects 1–3) and dark grey bars representing non-readmission re-exacerbation (subjects 4–5). b) Trajectory of patient-reported and physiological outcomes in non-readmitted patients (n=9). Data are presented as mean±sem, unless otherwise stated. Bold type represents statistical significance. bpm: breaths per min; mBorg: modified Borg scale for breathlessness; CAT: COPD Assessment Test; HR: heart rate; FEV1: forced expiratory volume in 1 s; FVC: forced vital capacity; IC: inspiratory capacity; EMGpara%max: normalised mean parasternal electromyography. #: repeated-measures ANOVA; ¶: n=6; +: n=1 unable to perform pre-discharge spirometry due to breathlessness. *: p<0.05 compared to admission, post hoc comparisons with Bonferroni correction were performed if a significant f ratio was obtained by one-way repeated-measures ANOVA across all time points.
