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Table 5 Inter-item correlation matrix GAD-7 generalized anxiety disorder

From: An arabic translation, reliability, and validation of Patient Health Questionnaire in a Saudi sample

GAD-7 items Item 1 Item 2 Item 3 Item 4 Item 5 Item 6 Item 7
Feeling nervous, anxious, on edge, or worrying a lot about different things 1.000
Feeling restless so that it is hard to sit still 0.314 1.000
Getting tired very easily 0.336 0.369 1.000
Muscle tension, aches, or soreness 0.204 0.288 0.426 1.000
Trouble falling asleep or staying asleep 0.224 0.236 0.352 0.240 1.000
Trouble concentrating on things, such as reading a book or watching TV 0.284 0.383 0.389 0.297 0.319 1.000
Becoming easily annoyed or irritable 0.332 0.324 0.410 0.277 0.260 0.384 1.000