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Table 1 Summary of the measurement items

From: Comparative evaluation of different medication safety measures for the emergency department: physicians’ usage and acceptance of training, poster, checklist and computerized decision support

Items Measurement Cronbach’s α after item deleted Source
U1 If you have questions on interactions and contraindications of drugs: How do you inform yourself at first? (look at the poster/look at the pocket- checklist/use the electronic medication check/ask colleagues/look at the “red list” (print version)/others -please specify) -- self- development
U2 Have you gotten a briefing regarding the usage of the measures? (yes/no)   
U3 How often do you use the measures in your daily routine? (not at all/monthly/weekly/once a day/several times a day)   
U4 In case of a critical drug order: To what percentage do you use the measures? (not at all/up to 10%/up to 25%/up to 50%/up to 100%)   
U5 When have you used the measure for the last time? (never use/today/…days before)   
U6 Which information sources do you usually use when checking medication electronically? (infobutton/checkbox “indication for drug known”/OntoDrug/PharmIndex/checkbox “ADE”/use no source)   
U7 In which situations do you use the computer-assisted medication check? (open- ended)   
U8 Previous field observations indicated that measures have not been used often. What can be the reasons for low usage in your opinion? (open-ended)   
U9 What should be improved so that measures are used more frequently? (open-ended)   
PU   0.882 PU1- self- development; [35]
PU1 Medication safety measures basically make sense.   
PU2 The measures could increase my productivity.   
PU3 The measures could improve the quality of care.   
PU4 The measures could enhance my effectiveness.   
PU5 The measures could be useful in my job.   
PEOU   0.949 [35]
PEOU1 My interaction with measures is clear and understandable.   
PEOU2 The measures are easy to use.   
PEOU3 Interacting with measures will not require a lot of mental effort.   
PEOU4 It will be easy to get measures to do what I want them to do.   
SN   -- [35]
SN1 Physicians who influence my behavior think I should use the measures.   
IM   0.881 [35]
IM1 Having the measures is a status symbol.   
IM2 Physicians who use the measures have more prestige than those who do not.   
IM3 Physicians who use the measures have a high profile.   
JR   0.869 [35]
JR1 Usage of the measures is relevant to the delivery of patient care.   
JR2 Usage of the measures is important to the delivery of patient care.   
OQ   -- [35]
OQ1 The quality of drug information is high.   
RD   0.860 [35]
RD1 The measures could reduce the costs of my care delivery.   
RD2 I believe I can communicate to others the consequences of using the measures.   
RD3 The results of using the measures are apparent to me.   
RD4 I have difficulty explaining why using the measures may or may not beneficial.   
COM   -- [40]
COM1 Using the measures fits well with the way I work.   
RTC   0.860 [39]
RTC1 I don’t want the measures to change the way I order patient medication.   
RTC2 Overall, I don’t want the measures to change the way I currently work.   
VO   -- [23]
VO Use of the measures is voluntary.   
ITU   1.000 [35]
ITU1 Assuming that significant barriers to the use are overcome, I intend to use the measures.   
ITU2 If significant barriers did not exist, I predict I would use the measures.   
General Suitability    
GLO1 How suitable do you judge the measures (training/poster/checklist/infobutton/checkbox “indication for drug known”/OntoDrug/PharmIndex/checkbox “ADE”) for emergency department? (5-point rating scale ranging from 1 = least suitable to 5 = above all suitable) -- self- development
DG1 What is your professional status? (senior physician/specialist in internal medicine/junior doctor) -- self- development
EXP1 How long have you been working as a physician? (for…years)   
EXP2 How long have you been working with electronic patient records? (for…years)   
EXP3 How do you rate your computer skills? (low/moderate/high)