Table 3 Operational definition of sociodemographic and clinical-laboratory variables
Collect form (options of response) | |
|---|---|
Demographic | |
Gender | Medical records (male or female) |
Age | Medical records (in year) |
Ethnicity | Medical records or self-reported (white, black, Asian, brown, and indigenous) |
Smoking habit | Self-reported (never smoked, former smoker, current smoker) |
Drinking habit | Self-reported (never consumed, former consumer, current consumer) |
Social | |
School degree | Self-reported (middle or high school, graduated, or post-graduated) |
Marital status | Self-reported (married, single, divorced, widowed) |
Salary range | Self-reported (number of minimum wages) |
Vascular access | Medical records (arteriovenous fistula, catheter, or prosthetic graft) |
Clinical characteristics | |
Height | Medical records (in meters) |
Dry body weight | Medical records (in kilograms) |
Hemodialysis vintage | Medical records (in months) |
Comorbid conditions | Medical records or self-reported (yes or no) |
Etiology of chronic kidney disease | Medical records (confirmed diagnosis) |
Medications | Medical records (no. of medications) |
Physical rehabilitation | Professional standard report (yes or no, modality, frequency) |
Dialysis regiment | Medical records (conventional, short-daily, hemodialysis, or hemodiafiltration) |
Laboratory variables | Medical records |