Functional Recovery of Hospitalised Patients With COVID-19: The COREG Extension Study

The AM-PAC is an activity limitation instrument based on the International Classification of Functioning, Disability and Health (ICF) that assesses 3 functional domains: basic mobility, daily activities and applied cognition.

The AM-PAC is an activity limitation instrument based on the International Classification of Functioning, Disability and Health (ICF) that assesses 3 functional domains: basic mobility, daily activities and applied cognition.

The AM-PAC is an activity limitation instrument based on the International Classification of Functioning, Disability and Health (ICF) that assesses 3 functional domains: basic mobility, daily activities and applied cognition.

The AM-PAC is an activity limitation instrument based on the International Classification of Functioning, Disability and Health (ICF) that assesses 3 functional domains: basic mobility, daily activities and applied cognition.

The SPPB combines the results of gait speed over 3 meters, the 5-repetition chair-stand, and a progressive balance test to assess lower extremity function.

The CFS is an interview-based scale wherein the assessor may ask the participant questions about things such as a participant's independence or physical abilities to determine where the participant falls along the 9-point scale, from 1 (Very Fit) to 9 (Terminally Ill).

The Forced Expiratory Volume in 1 Second parameter measures the volume of air that was exhaled into the mouthpiece in the first second after a full inhalation as measured by spirometry.

The amount of air that can be forcibly exhaled from a participant's lungs after taking the deepest breath possible, as measured by spirometry. FVC is the total amount of air exhaled during the FEV test.

The FEV1/FVC Ratio (FEV1%) parameter is calculated by dividing the measured FEV1 value by the measured FVC value.

The FIM assesses the functional status of a person based on the level of assistance the person requires.

The IES-R is a 22-item self-report measure that asks questions about subjective distress caused by traumatic events. Each item is rated on a 5-point scale, from 0 ("not at all") to 4 ("extremely").

The EQ-5D-5L is a generic and well-established instrument for describing health status or disease-specific outcome measures. It defines health in terms of five dimensions: Mobility, Self- Care, Usual Activities, Pain/Discomfort, and Anxiety/ Depression. The response options are of five levels, from no, slight, moderate, severe, to extreme problems

Developed in early 2020, this 5-point scale assesses how individuals have been affected in a participant's everyday life by COVID-19 illness and recovery. Lower grades indicate better functioning, with grade 0 representing the absence of symptoms or functional limitations and grade 4 reflecting severe limitations and symptom burden. The PCFSS can be patient-reported following a flow diagram series of questions to result in a grade, or it can be administered via structured interview, which is more comprehensive. The research team will conduct the structured interview over the phone and the patient-reported flow chart during the home visits.

The HADS is a 14-item two-dimension scale that identifies depression and anxiety among physically ill patients. Scores range from 0 to 21, with higher scores indicating higher levels of anxiety. In the general ill population, a cut-off of ≥8 indicates depression.

This visual scale allows individuals to rate a participant's global fatigue from 0 (worst fatigue) to 10 (normal).

This brief questionnaire contains five statements describing a range of breathlessness from only becoming breathless with strenuous exercise to being too breathless to leave the house.

Oxygen saturation will be measured using a fingertip pulse oximeter to detect hypoxia and to evaluate any persistent hypoxia post-COVID-19 illness.