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Table 1 Stability and agreement for the test-retest (n = 28). Removed items are marked into bold font and cursive, retained items marked only cursive.

From: A content validated questionnaire for assessment of self reported venous blood sampling practices

Question n-cata n (%)b rSc κ d %Ae 1f 2g
7 How and how often do you check the identity of a patient when collecting venous blood sampling?        
a) I ask the patient to state his/her name... 2/4 28 (100) 0.63 0.62 86% Ok Ok
b) I already know the patient... 3/4 27 (96) 0.89 0.71 85% Ok Ok
c) I ask the patients relatives 4/4 24 (86) 0.54 0.38 67%   
d) I check the patient's ID-card 4/4 28 (100) 0.81 0.69 82% Ok Ok
8 If you use stasis when performing venous blood sampling, when do you remove it?        
a) Before the first... 4/4 27 (96) 0.72 0.31 48% Ok  
b) During sampling 4/4 26 (93) 0.58 0.46 61%   
c) After the sampling is finished 4/4 26 (93) 0.53 0.45 69%   
d) If there is difficulty collecting... 4/4 26 (93) 0.72 0.71 81% Ok Ok
9 How long do you usually allow your patient to rest 6/6 28 (100) 0.87 0.78 82% Ok Ok
10 How often do you carry out the following tasks?        
a) If the test tube has an additive... 3/4 28 (100) 0.45 0.47 82%   
b) Use an automatic test tube inverter 4/4 26 (93) 0.89 0.89 92% Ok Ok
11 What do you do when you are not sure how a sample should be collected?        
a) I check printed instructions... 4/4 25 (89) 0.76 0.69 84% Ok Ok
b) I check the instructions (internal network)... 4/4 25 (89) 0.96 0.87 92% Ok Ok
c) Ask a colleague 4/4 26 (93) 0.83 0.61 73% Ok Ok
d) I call the lab 4/4 27 (96) 0.82 0.67 85% Ok Ok
12 How do you store the test tubes immediately after sampling?        
a) Lying on a workbench or... 4/4 24 (86) 0.78 0.53 83% Ok Ok
b) In the pocket... 2/4 24 (86) 1.00 1.00 100% Ok Ok
c) In a test-tube stand 4/4 26 (93) 0.99 0.84 92% Ok Ok
13 How often does someone else mark the sampling time on the test request? 3/5 27 (96) 0.65 0.53 81%   Ok
14 When do you mark the sampling time on the test request, if you do it yourself? 2/5 26 (93) 0.92 0.91 96% Ok Ok
15 How often do you perform the following tasks?        
a) Compare the patient's name and... 2/4 28 (100) 0.56 0.47 93% Ok  
b) Use test request that somebody... 4/4 28 (100) 0.69 0.57 75%   Ok
c) Sign the test request 2/4 27 (96) 0.69 0.65 96% Ok Ok
d) Check the information... 4/4 27 (96) 0.77 0.57 93% Ok Ok
e) Adjust sampling time... 4/4 25 (89) 0.69 0.68 80% Ok Ok
f) Check that the test request... 4/4 27 (96) 0.70 0.52 78% Ok Ok
16 When do you label the test tube?        
a) Before I approach the patient 4/4 28 (100) 0.37 0.33 68%   
b) Alongside the patient before... 4/4 27 (96) 0.77 0.33 52% Ok  
c) Alongside the patient after... 4/4 28 (100) 0.77 0.52 64% Ok Ok
d) At a later occasion 2/4 27 (96) 0.69 0.65 96% Ok Ok
e) Somebody else has labelled the test tube in advance 3/4 27 (96) 0.49 0.52 88% Ok Ok
f) Somebody else labels the test tube after sampling 2/4 28 (100) 0.56 0.47 93% Ok  
17 Approximately, how many error reports have you written after observing or making an error in venous blood sampling? 2/2 26 (93) 1.00 1.00 100% Ok Ok
18 If you have refrained from writing an error report: What was/were the reason/reasons?        
a) I don't have enough time 4/4 25 (89) 0.75 0.49 64% Ok  
b) It wouldn't make any difference 4/4 24 (86) 0.77 0.65 79% Ok Ok
c) Nobody else does 3/4 24 (86) 0.77 0.65 83% Ok Ok
d) It is too complicated 3/4 23 (82) 0.65 0.56 74%   Ok
e) The head of the PHC writes the error reports 3/4 24 (86) 0.42 0.28 71%   
f) I am concerned about possible consequences 2/4 21 (75) 0.09 -0.07 81%   
19 To what extent do you agree in the following statements?        
a) I have enough knowledge... 2/4 28 (100) 0.59 0.58 86%   Ok
b) Proper collection and handling... 3/4 26 (93) 0.53 0.63 81% Ok Ok
  1. an-cat, number of answered categories, bn(%), numbers of respondents crs, Spearmans rangcorrelation dκ, Kappacoefficient, e%A, Numbers of agreements in%, f Criteria1, κ ≥ 0.61 or rs ≥ 0.7 or%A ≥ 90%, g Criteria 2, κ ≥ 0.51 and rs ≥ 0.6 or κ ≥ 0.51 and %A ≥ 80%.