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Table 5 Principal components analysis

From: Validation of the Turkish version of the quality of recovery-40 questionnaire

Items

Mean

SD

Factor loading

Physical comfort

   

  I have been able to breathe easily

4.39

0.74

0.532

  I have been able to sleep well

3.73

1.09

0.585

  I have been able to enjoy food

4.08

1.06

0.553

  I have been feeling rested

3.62

1.18

0.627

  Nausea

4.13

0.96

0.754

  Vomiting

4.29

0.94

0.804

  Dry-retching

4.37

0.98

0.776

  Feeling restless

4.14

0.96

0.582

  Shaking or twitching

4.41

0.88

0.672

  Shivering

4.40

0.80

0.592

  Feeling too cold

4.37

0.77

0.580

  Feeling dizzy

4.23

0.86

0.568

Emotional state

   

  I have been having a feeling of general well-being

4.12

0.76

0.474

  I have been feeling in control

4.21

0.85

0.530

  I have been feeling comfortable

4.22

0.79

0.562

  Had bad dream

4.31

0.76

0.749

  Feeling anxious

4.27

0.76

0.745

  Feeling angry

4.35

0.72

0.789

  Feeling depressed

4.43

0.75

0.769

  Feeling alone

4.52

0.77

0.744

  Had difficulty falling asleep

4.01

1.03

0.513

Patient support

   

  I have been able to communicate with hospital staff in the hospital

4.43

0.90

0.714

  I have been able to communicate with my family and friends

4.63

0.78

0.716

  I have been getting support from the doctors in the hospital

4.40

0.92

0.840

  I have been getting support from the nurses in the hospital

4.43

0.99

0.845

  I have been getting support from my family and friends

4.64

0.80

0.793

  I have been able to understand the instructions and advice

4.63

0.79

0.799

  Feeling confused

4.21

0.79

0.620

Physical independence

   

  I have been having normal speech

4.27

1.04

0.793

  I have been able to wash my face, brush my teeth or shave

4.25

1.24

0.871

  I have been able to look after my own appearance

4.32

1.13

0.812

  I have been able to write

4.25

1.26

0.561

  I have been able to return to work or usual home activities

3.83

1.44

0.651

Pain

   

  Moderate pain

3.63

0.96

0.602

  Severe pain

4.31

0.83

0.541

  Headache

4.29

0.85

0.682

  Muscle pains

4.33

0.99

0.776

  Backache

4.32

1.00

0.725

  Sore throat

4.45

0.89

0.657

  Sore mouth

4.70

0.71

0.603

  1. Kaiser-Meyer-Olkin measure of sampling adequacy (0.832). Bartlett’s test of sphericity (P < 0.01).
  2. Extraction method: Principal components analysis. Varimax rotation with Kaiser normalization; rotation converged in seven iterations and values below 0.40 were suppressed. This model explained 58.91% of the variance.