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Table 3 Item analysis for the family caregiver ICU delirium knowledge questionnaire

From: Psychometric evaluation of the family caregiver ICU delirium knowledge questionnaire

Item numberDescriptionAlpha if item deletedItem-to-total score correlations
1Patients with an infection0.780.54
2Patients who are married (vs not married)0.800.33
3Patients with dementia0.780.54
4Patients who are older0.780.56
5Patients with more than a high school education0.790.37
6Patients who had recent surgery0.780.61
7Patients who are dehydrated0.770.70
8Patients experiencing change in surroundings such as a recent ICU admission or move to new room or transferred0.770.69
9Patients started on a new medication0.780.51
10Patients who are mechanically ventilated or intubated0.790.48
11Orient patient to time and day or bring in photos from home0.790.38
12Wait 24 h to see if the patient got better0.790.40
13Let the patient sleep during the day to recover0.800.33
14Do nothing0.790.32
15Inform the bedside RN or another member of the care team right away0.790.39
a16Ask the care team about medication changes0.800.23
17Patient slowly becomes more confused over a few months (prior to ICU admission), is forgetful, has trouble paying attention, and is more confused later in the day0.800.30
a18Patient slowly becomes more confused over a few months (prior to ICU admission), is forgetful, has trouble paying attention and later in the day sees things that are not there0.800.23
19While in the ICU, the patient suddenly becomes confused over a few days or hours, floats in and out of confusion during the day, has trouble paying attention, sees things that are not there0.780.56
20While in the ICU, the patient suddenly becomes confused over a few days or hours, has trouble paying attention, and sleeps more during the day0.780.49
21While in the ICU, the patient becomes more confused over a few days and suddenly has trouble getting to the bathroom on time0.790.43
  1. aItems with low correlation and can be removed from the CIDKQ
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