Table 2 Factor structure and reliability estimates
From: Validation of a self-reported HIV symptoms list: the ISS-HIV symptoms scale
ISS-HIV symptom scales Items | Loadings | % Variance | Chronbach’s α |
|---|---|---|---|
Factor 1: Pain/general discomfort (7 items) | 16.25 | 0.86 | |
Pain in the head or feet | 0.769 | ||
Aching muscles | 0.691 | ||
Abnormal accumulation of fat | 0.681 | ||
Abdominal bloating | 0.563 | ||
Sweating | 0.513 | ||
Impaired vision | 0.498 | ||
Headache | 0.475 | ||
Factor 2: Depression, anxiety (4 items) | 16.03 | 0.87 | |
Feeling sad | 0.817 | ||
Worrying | 0.758 | ||
Feeling anxious and nervous | 0.718 | ||
Sleep problems | 0.574 | ||
Factor 3: Emotional reaction/psychological distress (5 items) | 13.08 | 0.83 | |
Memory problems | 0.739 | ||
Coughing | 0.692 | ||
Shortness of breath | 0.608 | ||
Difficulty in concentrating | 0.591 | ||
Tiredness | 0.488 | ||
Factor 4: Gastrointestinal discomfort (4 items) | 10.02 | 0.70 | |
Weight loss | 0.715 | ||
Lack of appetite | 0.702 | ||
Diarrhoea | 0.656 | ||
Heartburn | 0.508 | ||
Factor 5: Sexual discomfort (2 items) | 9.58 | 0.91 | |
Decrease of sexual interest | 0.790 | ||
Problem with sexual activity | 0.758 |