2.5 Data collection and procedure
A standardized data collection form was used to obtain patients’
demographics, clinical manifestations and signs, laboratory indicators,
treatment measures, and clinical outcomes from their electronic medical
records. This data form is a revision of the NIH Pakistan Severe Acute
Respiratory and Emerging Infections Association Case Record Form
Version.14Â The recorded data included:
- Demographics: Age, gender, body mass.
- Underlying diseases: Chronic obstructive pulmonary disease, chronic
kidney disease, cardiovascular disease, hypertension, diabetes,
cerebrovascular disease, chronic liver disease, tumor.
- Symptoms from onset to admission: Fever, cough, dyspnea, fatigue or
myalgia, diarrhea.
- Vital signs at admission to ICU: Heart rate, respiratory rate, oxygen
saturation, Glasgow Coma Scale (GCS) score.
- Laboratory tests at admission: Blood routine, coagulation profile,
liver and kidney function tests, myocardial enzyme spectrum, atrial
natriuretic peptide (BNP), infection indicators (C-reactive protein,
procalcitonin).
- Therapies: Continuous renal replacement therapy (CRRT), oxygen
inhalation, noninvasive mechanical ventilation (NIV), invasive
mechanical ventilation (IMV).
- Complications: Acute respiratory distress syndrome (ARDS), acute heart
injury, shock.
- Hospital stay: Duration of stay in hospital prior to admission to ICU,
duration of stay in ICU.