Table 1 Factor loadings in each of the items of the symptom inventory on the three factors extracted, after varimax rotation

Anxiety

0.52^a

0.18

0.32

Cough or nasal congestion

0.24

0.24

0.01

Sadness/depression

0.71^a

0.06

0.30

Restlessness

0.52^a

0.19

0.42

No interest in activities

0.72^a

0.05

0.32

Difficulty making decisions

0.74^a

0.14

0.23

Strange thoughts

0.62^a

-0.14

0.37

All-over sick feeling

0.42

0.63^a

0.19

Difficulty getting to sleep

0.22

0.29

0.68^a

Difficulty staying asleep

0.25

0.28

0.70^a

Sleeping too much

0.45

0.10

-0.25

Nausea

0.38

0.55^a

0.12

Vomiting

0.10

0.38

0.26

Loss of appetite

0.41^a

0.15

0.10

Tiredness/fatigue

0.55^a

0.38

0.15

Distractibility

0.75^a

0.33

0.04

Body aches

0.26

0.72^a

0.26

Joint pain

0.24

0.63^a

0.30

Chest pain

0.14

0.64^a

0.12

Other pain

0.09

0.52^a

0.27

Episodes of confusion

0.70^a

0.31

0.07

Word finding problem

0.59^a

0.33

-0.04

Memory problem

0.66^a

0.36

0.05

Irritability

0.57^a

0.21

0.44

Decreased motivation

0.73^a

0.21

0.13

Hallucinations

0.34

-0.01

0.52^a

Lack of emotions

0.47

0.12

0.10

Mood swings

0.57^a

0.32

0.47

Slowed movements

0.30

0.65^a

-0.03

Tremor/shakiness

0.16

0.38

0.28

Walking problems

0.14

0.65^a

0.33

Vision problems

0.02

0.47

0.04

Bladder problems

0.29

0.36

0.20

Loss of interest in sex

0.47

0.21

0.07

Fever

0.04

0.37

0.18

Headaches

0.50^a

0.39

0.21

Nightmares/dreams

0.38

0.43

0.25

Shortness of breath

0.59^a

0.47

-0.13

Rash/skin change/itching

0.19

0.68^a

-0.02

Change in hair

-0.001

0.51^a

0.29

Dizziness

0.32

0.55^a

0.13