Table 1.
Variables from United States and South Africa Samples of Adults Living with HIV Used in the Analysis.
| Variable of Interest | Scale | Source of data: United States | Source of data: South Africa |
|---|---|---|---|
| Demographic characteristics | |||
| Age, years | Ratio | Questionnaire and electronic medical record | Questionnaire |
| Sex (male, female) | Nominal | Questionnaire | Questionnaire |
| Employment status (employed, not employed) | Nominal | Questionnaire | Questionnaire |
| Clinical characteristics | |||
| Number of years since HIV diagnosis | Ratio | Questionnaire | Questionnaire |
| ART adherence (adherent, not adherent) | Nominal | Electronic medical record | Mannheimer Adherence Index |
| CD-4 count, cells/mm3 (most recent) | Ratio | Electronic medical record | Questionnaire and patient record |
| Comorbidities | |||
| Presence of depression | Nominal | Beck Depression Inventory-II | CES-D 10 |
| Presence of tuberculosis | Nominal | Questionnaire and electronic medical record | Questionnaire |
| Presence of diabetes | Nominal | Questionnaire and electronic medical record | Questionnaire |
| Presence of muscle pain | Nominal | Questionnaire | Questionnaire |
| Disability | |||
| Presence of self-reported disability | Nominal | WHODAS 2.0 (12-item extraction from full 36-item version) | WHODAS 2.0, 12 items |
| Severity of self-reported disability | Ratio | WHODAS 2.0 12-item extraction from full 36-item version) | WHODAS 2.0, 12 items |
Abbreviations: CES-D 10, Center for Epidemiologic Studies Depression Scale 10; WHODOS, World Health Organization Disability Assessment Schedule.