Research Article
Factor Structure of CIWA-Ar in Alcohol Withdrawal
Table 3
Factor analysis (maximum likehood) with varimax rotation showing factor structure of CIWA-Ar (N = 201) at 36 hours.
| CIWA-Ar items | Factor loading | % positive
| Item scores
| Delirious | Autonomic | Nonspecific | Mean | SD |
| Tactile disturbances | .999 | | | 65.7 | 2.26 | 2.20 | Auditory disturbances | .873 | .150 | .163 | 75.1 | 3.35 | 2.54 | Orientation and clouding of sensorium | .851 | | −.137 | 49.3 | 1.06 | 1.30 | Agitation | .777 | .120 | | 80 | 3.30 | 2.06 | Anxiety | | .998 | | 91 | 2.96 | 1.92 | Paroxysmal sweats | | .660 | .277 | 75 | 1.05 | .86 | Tremor | | .528 | .211 | 94.5 | 4.63 | 1.78 | Headache and fullness in head | .172 | .245 | | 12.9 | .18 | .49 | Nausea and vomiting | −.156 | .375 | .516 | 58.7 | .93 | .95 | Visual disturbances | .233 | | .275 | 53.2 | .72 | .90 | Eigenvalue | 3.4 | 2.4 | 1 | | | | Variance (%) | 34.34 | 24.25 | 10.04 | | Total = 68.74 | Factor mean (SD) | 9.97 (7.4) | 8.81 (3.96) | 1.64 (1.41) | | | | Cronbach’s alpha | .91 | .66 | .26 | | | |
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