Table 4 Polychoric correlations (95% CI) among the Anxiety Scale items

 1. Anxious complaints/ concerns

–

 2. Unrealistic fears

.546 (.519–.575)

–

 3. Obsessive thoughts

.461 (.413–.478)

.479 (.458–.515)

–

 4. Intrusive thoughts or flashbacks

.297 (.267–.340)

.388 (.351–.421)

.466 (.433–.501)

–

 5. Episodes of panic

.424 (.402–.459)

.496 (.461–519)

.454 (.420–.483)

.459 (.428–.491)

–

 6. Nightmares

.293 (.269–.334)

.398 (.364–.452)

.284 (.237–.307)

.435 (.404–.470)

.345 (.308–.380)

–

 1. Anxious complaints/ concerns

–

 2. Unrealistic fears

.448 (.352–.532)

–

 3. Obsessive thoughts

.351 (.256–.446)

.263 (.156–.363)

–

 4. Intrusive thoughts or flashbacks

.208 (.097–.301)

.356 (.250–.459)

.325 (.212–.420)

–

 5. Episodes of panic

.292 (.198–.384)

.453 (.362–.543)

.293 (.182–.381)

.432 (.315–.523)

–

 6. Nightmares

.148 (.043–.256)

.304 (.196–.399)

.140 (.037–.246)

.440 (.335–.552)

.255 (.156–.365)

–