Table 4 Item parameters and standard errors for the items in the BAI questionnaire across PLWHAs and healthy general population
| Â | Factor loading | 1st threshold | 2nd threshold | 3rd threshold |
|---|---|---|---|---|
b (SE) | Ï„1 (SE) | Ï„2 (SE) | Ï„3 (SE) | |
q1: Numbness or tingling | Â | Â | Â | Â |
Healthy | 0.887 (0.072) | 0.442 (0.481) | 1.615 (0.479) | 2.846 (0.518) |
PLWHA | 0.887 (0.072) | 0.442 (0.481) | 1.615 (0.479) | 2.846 (0.518) |
q2: Feeling hot | Â | Â | Â | Â |
Healthy | 0.797 (0.061) | 0.024 (0.441) | 0.922 (0.443) | 2.387 (0.446) |
PLWHA | 0.797 (0.061) | 0.024 (0.441) | 0.922 (0.443) | 2.387 (0.446) |
q3: Wobbliness in legs | Â | Â | Â | Â |
Healthy | 1.089 (0.095) | 0.277 (0.630) | 1.025 (0.634) | 2.222 (0.666) |
PLWHA | 1.089 (0.095) | 0.277 (0.630) | 1.025 (0.634) | 2.222 (0.666) |
q4: Unable to relax | Â | Â | Â | Â |
Healthy | 1.115 (0.077) | − 0.521 (0.550) | 0.818 (0.554) | 2.083 (0.570) |
PLWHA | 1.115 (0.077) | − 0.521 (0.550) | 0.818 (0.554) | 2.083 (0.570) |
q5: Fear of worst happening | Â | Â | Â | Â |
Healthy | 0.891 (0.060) | − 0.519 (0.473) | 0.459 (0.476) | 1.822 (0.490) |
PLWHA | 0.891 (0.060) | − 0.519 (0.473) | 0.459 (0.476) | 1.822 (0.490) |
q6: Dizzy or lightheaded | Â | Â | Â | Â |
Healthy | 1.163 (0.086) | − 0.927 (0.671) | 0.126 (0.678) | 1.588 (0.731) |
PLWHA | 1.163 (0.086) | − 0.927 (0.671) | 0.126 (0.678) | 1.588 (0.731) |
q7: Heart pounding/racing | Â | Â | Â | Â |
Healthy | 1.071 (0.075) | 0.430 (0.583) | 1.550 (0.587) | 2.716 (0.598) |
PLWHA | 1.071 (0.075) | 0.430 (0.583) | 1.550 (0.587) | 2.716 (0.598) |
q8: Unsteady | Â | Â | Â | Â |
Healthy | 1.130 (0.091) | 0.642 (0.587) | 1.888 (0.579) | 2.957 (0.629) |
PLWHA | 1.130 (0.091) | 0.642 (0.587) | 1.888 (0.579) | 2.957 (0.629) |
q9: Terrified or afraid | Â | Â | Â | Â |
Healthy | 1.105 (0.087) | 0.463 (0.628) | 1.410 (0.619) | 2.869 (0.706) |
PLWHA | 1.105 (0.087) | 0.463 (0.628) | 1.410 (0.619) | 2.869 (0.706) |
q10: Nervous | Â | Â | Â | Â |
Healthy | 0.914 (0.060) | − 1.039 (0.482) | 0.064 (0.481) | 1.698 (0.496) |
PLWHA | 0.914 (0.060) | − 1.039 (0.482) | 0.064 (0.481) | 1.698 (0.496) |
q11: Feeling of choking | Â | Â | Â | Â |
Healthy | 1.251 (0.132) | 0.151 (0.812) | 1.135 (0.806) | 2.233 (0.865) |
PLWHA | 1.251 (0.132) | 0.151 (0.812) | 1.135 (0.806) | 2.233 (0.865) |
q12: Hands trembling | Â | Â | Â | Â |
Healthy | 0.985 (0.084) | − 0.153 (0.572) | 0.748 (0.571) | 2.089 (0.646) |
PLWHA | 0.985 (0.084) | − 0.153 (0.572) | 0.748 (0.571) | 2.089 (0.646) |
q13: Shaky/unsteady | Â | Â | Â | Â |
Healthy | 1.360 (0.144) | − 0.163 (0.801)) (0.084) | 0.913 (0.797) | 2.119 (0.896) |
PLWHA | 1.360 (0.144) | − 0.163 (0.801)) (0.084) | 0.913 (0.797) | 2.119 (0.896) |
q14: Fear of losing control | Â | Â | Â | Â |
Healthy | 0.868 (0.072) | − 1.155 (0.536) | − 0.044 (0.525) | 1.263 (0.592) |
PLWHA | 0.868 (0.072) | − 1.155 (0.536) | − 0.044 (0.525) | 1.263 (0.592) |
q15: Difficulty in breathing | Â | Â | Â | Â |
Healthy | 1.161 (0.115) | 0.227 (0.852) | 1.429 (0.841) | 2.436 (0.900) |
PLWHA | 1.161 (0.115) | 0.227 (0.852) | 1.429 (0.841) | 2.436 (0.900) |
q16: Fear of dying | Â | Â | Â | Â |
Healthy | 0.539 (0.058) | − 0.698 (0.411) | − 0.068 (0.406) | 0.838 (0.414) |
PLWHA | 0.539 (0.058) | − 0.698 (0.411) | − 0.068 (0.406) | 0.838 (0.414) |
q17: Scared | Â | Â | Â | Â |
Healthy | 0.854 (0.071) | − 0.262 (0.514) | 0.849 (0.508) | 1.917 (0.537) |
PLWHA | 0.854 (0.071) | − 0.262 (0.514) | 0.849 (0.508) | 1.917 (0.537) |
q18: Indigestion | Â | Â | Â | Â |
Healthy | 0.800 (0.069) | 0.421 (0.498) | 1.339 (0.496) | 2.359 (0.529) |
PLWHA | 0.800 (0.069) | 0.421 (0.498) | 1.339 (0.496) | 2.359 (0.529) |
q19: Faint/lightheaded | Â | Â | Â | Â |
Healthy | 1.557 (1.262) | 1.740 (1.280) | 1.470 (1.212) 143.472 | 2.853 (2.245) |
PLWHA | 1.557 (1.262) | 1.740 (1.280) | 1.470 (1.212) 143.472 | 2.853 (2.245) |
q20: Face flushed | Â | Â | Â | Â |
Healthy | 0.626 (0.064) | 1.290 (0.508) | 2.208 (0.514) | 2.986 (0.520) |
PLWHA | 0.626 (0.064) | 1.290 (0.508) | 2.208 (0.514) | 2.986 (0.520) |
q21: Hot/ cold sweats | Â | Â | Â | Â |
Healthy | 0.785 (0.066) | 0.577 (0.463) | 1.329 (0.463) | 2.573 (0.470) |
PLWHA | 0.785 (0.066) | 0.577 (0.463) | 1.329 (0.463) | 2.573 (0.470) |