Table 3. Standardized factor loadings for the perceived barriers to antiretroviral therapy adherence (PEDIA) scale by type of factory analysis used.a.
| EFA 2 | CFA 1 | CFA 2 | |||||
|---|---|---|---|---|---|---|---|
| Item number | Item content | F1 | F2 | F1 | F2 | F1 | F2 |
| 1 | The main problem of living with HIV is the stigma around it. | 0.518 | −0.232 | 0.363b | —c | — | — |
| 2 | I am afraid to be identified as living with HIV when I go to the health care facility to get my HIV meds refill. | 0.918 | −0.276 | 0.646b | — | — | — |
| 3 | It frustrates me to think that I need to take the HIV meds in order to be alive. | 0.472 | 0.200 | 0.633 | — | 0.673 | — |
| 4 | Sometimes I skip taking my HIV meds because I want to avoid side effects. | −0.067 | 0.793 | — | 0.647 | — | 0.648 |
| 5 | Despite my HIV status, I live a normal life. | −0.229d | −0.366d | — | — | — | — |
| 6 | It is difficult to take my HIV meds at home. | −0.186 | 0.890 | — | 0.756 | — | 0.778 |
| 7 | I do not like to take my HIV meds around others. | 0.430 | 0.261 | 0.700 | — | 0.682 | — |
| 8 | Sometimes I forget to take my HIV meds because I get distracted. | −0.265 | 0.781 | — | 0.600 | — | 0.638 |
| 9 | It is difficult to take my HIV meds at work. | −0.096 | 0.850 | — | 0.818 | — | 0.829 |
| 10 | I believe that my HIV meds make me healthy. | −0.117d | −0.312d | — | — | — | — |
| 11 | It is tiresome to take my HIV meds every day. | 0.390 | 0.434 | 0.775 | — | 0.835 | — |
| 12 | I find it difficult to swallow the pills. | 0.136 | 0.459 | — | 0.597b | — | — |
| 13 | When I feel depressed I do not want to take my HIV meds. | 0.046 | 0.740 | — | 0.705 | — | 0.680 |
| 14 | It is difficult to tell people that I am living with HIV. | 0.869 | −0.233 | 0.646b | — | — | — |
| 15 | I am worried about the HIV meds stopping to work in the future. | 0.518 | 0.049 | 0.491b | — | — | — |
| 16 | It is hard to get used to the side effects. | 0.161d | 0.397d | — | — | — | — |
| 17 | It bothers me that I have to get my HIV meds refill in the health care facility’s pharmacy. | 0.739 | −0.039 | 0.699 | — | 0.606 | — |
| 18 | It is harder to keep track of my HIV meds on weekends. | 0.022 | 0.601 | — | 0.685 | — | 0.675 |
a
Two types of analysis were conducted: exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). All analyses used a 2-factor structure. EFA 2 was performed using Sample 2020. CFAs 1 and 2 were performed using Sample 2021.
b
Item removal in CFA 1 was based on modification indices and theoretical relevance.
c
Not applicable.
d
Item removal in EFA 2 was primarily determined by standardized factor loadings below 0.4, supplemented by theoretical considerations.