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Table 2 Knowledge assessment with 32-item questionnaire at time point 1 (immediately after intervention)

From: Effectiveness of an edutainment video teaching standard precautions – a randomized controlled evaluation study

  Question Correct answer Video group, percent correct answers SOP group, percent correct answers No-intervention group. Percent correct answers p-value
Q 1.1. Wearing non sterile gloves is indicated when ..drawing blood right 94.8 96.6 95.3 .810
Q 1.2. ..touching a patient who is an MRSA carrier a) wrong 54.3 43.7 61.7 .017
Q 1.3. ..emptying an urinary bag right 98.3 97.5 98.4 .897
Q 1.4 ..washing a patients‘face b wrong 73.3 84 85.2 .042
Q 2.1. Wearing a surgical mask is indicated when ..drawing blood from patients’ suffering from an influenza right 60.3 55.5 68.8 .094
Q 2.2. ..providing personnel care to a patient with an open tuberculosis a wrong 50.9 38.7 46.1 .168
Q 2.3. ..suctioning an intubated patient right 91.4 93.3 82.0 .014
Q 2.4 ..providing personnel care to a patient suffering from a cough right 78.5 59.7 46.1 <.001
Q 3.1. When performing an open suctioning of a patient with a tracheostoma I have to wear the following personal protective equipment: gloves right 98.3 96.6 93.8 .204
Q 3.2. surgical mask right 96.6 94.1 82.0 <.001
Q 3.3. cap wrong 97.4 87.4 95.3 .007
Q 3.4 goggles right 91.4 79.0 67.2 <.001
Q 4.1. To prevent the spread of a respiratory virus when suffering from a common cold... ..I’m only allowed to come to work if I’m vaccinated against influenza a wrong 98.3 98.3 99.2 .744
Q 4.2. ..I am allowed to cough and sneeze into a handkerchief which I dispose of immediately right 88.8 82.4 71.1 .002
Q 4.3. ..I am allowed to cough and sneeze into my elbow right 89.7 78.2 56.3 <.001
Q 4.4 ..I wear a surgical mask when in contact to my colleagues right 94.8 89.9 95.3 .213
Q 5.1. When wearing non-sterile gloves, I ... ..have to always disinfect my hands before donning gloves right 82.8 58.0 71.1 <.001
Q 5.2. ..have to always disinfect my hands after doffing gloves right 93.1 94.1 94.5 .926
Q 5.3. ..am allowed to inject medication without prior hand disinfection after touching the same patient wrong 87.1 88.2 90.6 .668
Q 5.4 ..have to doff the gloves as soon as possible to prevent the spread of germs right 79.3 73.1 69.5 .211
Q 6.1. I have to disinfect my hands … ..before touching the bed table of a patient b right 88.8 76.5 77.3 .023
Q 6.2. ..before shaking hands with a patient right 95.7 97.5 96.1 .777
Q 6.3. ..between touching a patients‘shoulder and emptying his urinary bag b wrong 90.5 88.2 84.4 .352
Q 6.4 ..between touching a patients‘shoulder and injecting insulin right 81.9 84.0 84.4 .863
Q 7.1. Check the correct answers concerning aseptic procedures When performing an aseptic procedure, I always have to wear short sleeves right 82.8 79.8 68.8 .025
Q 7.2. When performing an aseptic procedure, I always have to wear sterile gloves wrong 60.3 58.0 58.6 .937
Q 7.3. Aseptic procedures prevent the contamination of clean surfaces and material right 76.7 83.2 89.1 .037
Q 7.4 If I talk during aseptic procedures I need to wear a mask right 75.0 73.1 66.4 .298
Q 8.1. When in direct patient contact, I’m NOT allowed to wear … ..wedding ring right 98.3 89.1 78.1 <.001
Q 8.2. ..pearl earrings wrong 88.8 90.8 85.9 .504
Q 8.3. ..nail polish right 99.1 96.6 93.0 .038
Q 8.4 ..watch right 97.4 98.3 96.9 .842
  1. Caption: 32-item questionnaire with the percentage of correct answers by study group at time point 1
  2. Abbreviations: MRSA Methicillin resistant Staphylococcus aureus, SOP Standard Operating Procedure, Q Question
  3. a Topics not or only rudimentary thematized in video and SOP. b Topics not or only rudimentary covered in the video but covered in the SOP