Item # | Final SF-HDQ items | Item level statistics | ||||
---|---|---|---|---|---|---|
Uncertainty domain | Location | SE | Residual | ChiSq χ2 | p value | |
35 | Worry about future health living with HIV | − 0.114 | 0.041 | − 1.295 | 25.455 | 0.002a |
36 | Worry about lab test results such as my CD4 count and viral load | 0.701 | 0.041 | 0.084 | 13.146 | 0.156 |
39 | Worry about the side effects of HIV treatments | 0.069 | 0.038 | 0.793 | 5.110 | 0.825 |
40 | Worry about income or financial security living with HIV | − 0.608 | 0.035 | 0.900 | 6.796 | 0.658 |
41 | Worry what might happen to my family and friends if have an episode of illness | − 0.048 | 0.037 | 0.618 | 7.220 | 0.614 |
Final model: uncertainty domain—5 items (raw score range: 0–20) | ||||||
 Mean | − 0.366 | |||||
 Standard deviation | 1.190 | |||||
 Sample size | 930 | |||||
 Chi-square statistic (df) p value | 58.7265 (df: 45) p = 0.0965b | |||||
 Cronbach’s alpha | 0.82314 | |||||
 Person Separation Index | 0.78006 | |||||
 Unidimensionality t-test (% significant) | 1.72% | |||||
Differential Item Functioning (DIF)Â | None |