Table 2 Varimax rotated matrix of CKD knowledge scale

 Hypertension

^aA6.1

0.676

0.504

 Keep blood pressure under control

^aA8.3

0.620

0.505

 Help in maintaining blood pressure

^bK2.5

0.612

0.564

 Blood pressure monitoring

^aA3.4

0.515

0.509

 Heart diseases such as heart failure or heart attack

^aA6.4

0.426

0.435

 Affected organs: heart

^aA5.1

0.451

0.487

 Nausea and vomiting

^bK7.1

0.710

0.545

 Loss of appetite

^bK7.3

0.665

0.549

 Keep blood sugar levels under control

^aA8.2

0.531

0.508

 Tiredness/ fatigue

^bK7.2

0.519

0.444

 Diabetes

^aA6.2

0.469

0.550

 Fever

^bK7.4

0.414

0.524

 Pain killers (e.g., NSAIDs)

^bK6.5

0.561

0.472

 Fluid overload

^bK7.5

0.503

0.482

 Limit the intake of juices and soft drinks

^aA8.1

0.472

0.475

 Dialysis

^bK9.2

0.469

0.426

 Family history of CKD

^aA6.3

0.465

0.383

 Drugs

^bK9.1

0.442

0.380

 Obesity

^aA6.6

0.725

0.649

 Excess stress

^aA6.7

0.684

0.570

 Keep body weight under control

^aA8.4

0.549

0.537

 Produce substances that break down fats

^bK2.6

0.765

0.632

 Break down protein in the body

^b*K2.2

0.728

0.579

 Help in keeping the bones healthy

^bK2.4

0.591

0.556

 Affected organs: lungs

^aA5.2

0.617

0.492

 Affected organs: skin

^aA5.3

0.611

0.498

 Affected organs: brain

^aA5.4

0.603

0.614

 Produce urine

^bK2.1

0.696

0.644

 Clean blood/ filter waste products in the blood

^bK2.3

0.621

0.522

 CKD stages

^bK4

0.465

0.455

 Renal assessment via fecal test

^bK3.3

0.661

0.544

 Number of kidneys in a healthy individual

^bK1

0.625

0.571

 Renal assessment via urine test

^aA3.1

0.747

0.664

 Renal assessment via blood test

^aA3.2

0.654

0.603